mantenimiento y montaje manual de la válvula esférica2

�Vortex Hydra s.r.l. - Via Argine Volano 355 44034 Fossalta (Ferrara) Italy - Tel. +39.0532.879.411 - Fax +39.0532.866.766 - e-mail: [email protected]

This document is exclusive property of Vortex Hydra s.r.l. Any duplication, distribution or utilisation without written permission will be persecuted.

Ed. 12/2013L12004-0_850 Index Index GCZ

Fabricaciones IN

0.1 TABLE OF REVISIONS 5

0.2 WARNING REGARDING PROPERTY OF THE INFORMATION 6

0.3 UPDATING PROCEDURE 7

0.4 LIST OF ATTACHMENTS 8

INTRODUCTION 91.1 USING THE INSTRUCTION MANUAL 10

1.2 PRESERVATION OF THE MANUAL 11

1.3 WHO THE MANUAL IS INTENDED FOR 12

1.�.1 Customer 12

1.�.2 Carrier 12

1.�.� Installer 12

1.�.4 User 12

1.�.5 Service engineer 12

GENERAL INFORMATION 132.1 EDITING PICTOGRAMS 14

2.2 GLOSSARY 15

2.2.1 Abbreviations 16

2.3 IDENTIFICATION DATA OF THE MANUFACTURER 17

2.�.1 Identification Data of the Machine 17

2.�.2 Information Regarding After-sales Assistance 17

GENERAL DESCRIPTION 193.1 SPHERICAL VALVE AND APPURTENANCE MAIN DATA 20

3.2 DESCRIPTION OF MAIN PARTS 21

�.2.1 General 21

�.2.2 Turbine Spherical Valve (SV) 22

�.2.2.1 Valve Body 22

�.2.2.2 Bushing, Sealing System 22

�.2.2.� Valve Rotor And Trunnion 2�

�.2.2.4 SV Anchoring 24

�.2.2.5 Hydraulic Cylinder 24

�.2.2.6 Limit Switches And Position Indicator 24

3.3 OPERATING SEQUENCES FOR THE SPHERICAL VALVE MANOEUVRE 25

�.�.1 Working Principles – Movable Seal System Description 28

3.4 RING OPERATING MECHANISM 32

�.4.1 Description Of Operation �2

�.4.2 General ��

�.4.� Operating Sequences �4

3.5 BY-PASS 35

4Vortex Hydra s.r.l. - Via Argine Volano 355 44034 Fossalta (Ferrara) Italy - Tel. +39.0532.879.411 - Fax +39.0532.866.766 - e-mail: [email protected]


GCZFabricaciones Index Ed. 12/2013

L12004-0_850 IndexIN

3.6 UPSTREAM PIPE 36

3.7 DISMANTLING JOINT PIPE AND DISMANTLING JOINT BOLT 37

3.8 MAIN FLANGE CONNECTION 38

3.9 PAINT AND SURFACE TREATMENT 39

MAINTENANCE 414.1 CONTROL AND ROUTINE MAINTENANCE 42

4.1.1 Maintenance Of The Mechanical Parts 42

4.1.2 Spare Parts (Not Supplied) 44

PLANT LIFE PHASES 455.1 HANDLING AND TRANSPORT 46

5.1.1 Handling Of The Spherical Valve 47

5.2 PACKAGING 48

5.2.1 Packaging Of The Spherical Valve 48

5.2.2 Shipping Elements 49

5.3 ERECTION, ASSEMBLY AND INSTALLATION 51

5.�.1 Valve Positioning 51

5.�.2 Valve Alignment 52

5.�.� Bolts And Nuts Flange Tightening 54

5.�.4 Electrical Limit Switch, Mechanical Position Indicator 55

5.�.5 By-Pass 56

5.�.6 Electrical, Hydraulic And Water Circuit 56

5.4 COMMISSIONING, INSPECTION 57

5.5 DEMOLITION AND SCRAPPING 58

5Vortex Hydra s.r.l. - Via Argine Volano 355 44034 Fossalta (Ferrara) Italia - Tel. +39.0532.879.411 - Fax +39.0532.866.766 - e-mail: [email protected]


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0.1 TABLE OF REVISIONS

REV. DESCRIPTION DRAWN-UP CONTROLLED APPROVED DATE

0 First EmissionMrs.

Annamaria FarinaEng.

Irene Merli

Eng.Marco Luca

Bonaveri04/12/13



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0.2 WARNING REGARDING PROPERTY OF THE INFORMATIONThe configuration of the appliances as well as the representation of the set-ups and devises rep-resented in this use manual may differ from those supplied to the machine in the specific set-up realised according to particular requirements or Safety Standards.The company, in line with its policy of constantly developing and upgrading the product, reserves the right to make any modifications necessary to improve the essential features; i.e. without fore-warning and under no obligation whatsoever. If this does not modify the safety aspects, the com-pany is not obliged to give notice of said changes in this document, attached to the machine.Vortex Hydra S.r.l. also reserves the property rights on this document with explicit prohibition to reproduce it or make it available to third parties without authorisation. Every infraction will be prosecuted by law.

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0.3 UPDATING PROCEDUREThis version of the document and/or set-up is only updated when the functional aspects of the machine itself are modified by Vortex Hydra S.r.l. staff.

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GCZFabricaciones Foreword Ed. 12/2013

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0.4 LIST OF ATTACHMENTS

ALL. N° CODE DESCRIPTION1 L12004 - DB GEN Quality and Data Book2 L12004 - DB EP Electrical equipment Data Book3 - Drawings as per list par. 5.2.24 - Drawings as per list par. 5.3.6

SPHERICAL VALVE DN850 PN36

Ed. 12/2013“L12004-0_850 Chap 1”

Chapter 1

INTRODUCTION



GCZFabricaciones Introduction Ed. 12/2013

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1.1 USING THE INSTRUCTION MANUALThis manual is an integral part of the machine ad has the purpose of supplying all information necessary for:

making operators fully aware of safety problems;the correct installation of the plant;the in-depth knowledge of its functioning and limits;its correct use in safe conditions;to perform maintenance interventions correctly and safely;to disassemble the machines in safe conditions and with respect to the Standards in force to pro-tect the health of the workers and the environment.

The instructions, diagrams and documentation contained in this manual are the property of Vortex Hydra S.r.l. and cannot be reproduced in any way, entirely or partially.

The manual has a module structure: there is a general plant manual (this document) and, at the side of this, a series of technical sheets of the machines supplied. At par. 0.5 it is possible to see the table with all attachments present in the manual.

The different versions of this document are identified by a revision index (see par. 0.4). If a new version should be issued, it will be distributed to the customer the Vortex Hydra S.r.l. documental management procedure, in compliance with the ISO 9001:2008 Standard.

ATTENTIONThe plant operator is therefore responsible of making sure that, if any changes are made to this document by Vortex Hydra S.r.l., the customer is responsible for ensuring that only up-to-date versions of the manual are available at user points.

Those responsible for production and the qualified operators in charge of using the plant are obliged by the Standards in force to read this and all other manuals enclosed with the machine carefully and to make sure that the transporters, users and service engineers read the parts that concern them.

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1.2 PRESERVATION OF THE MANUALThe manual must be handled with care, with clean hands. Do not place it on dirty surfaces.It must be kept in an environment protected from humidity and heat.No parts must be removed, ripped or arbitrarily modified.

ATTENTIONThe manual is considered an integral part of the machine; therefore it must be kept until final dismantling of the same.



GCZFabricaciones Introduction Ed. 12/2013

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1.3 WHO THE MANUAL IS INTENDED FOR

1.3.1 CustomerIt is the person or company that has bought goods or services from Vortex Hydra S.r.l.

1.3.2 CarrierIt is a person with a professional qualification with a certain amount of experience concerning safety, who can handle the machine without putting persons, objects and the machine itself at risk.

1.3.3 InstallerIt is a person with electrical, mechanical and electronic technical qualifications with a good level of ex-perience concerning safety, who can install the machine perfectly.

1.3.4 UserThis is a technically qualified person, suitably trained in safety matters, who is able to ensure the correct use of the machine.

1.3.5 Service engineerIt is a person with technical, electrical, mechanical, electronic professional qualifications and a level of experience concerning safety that authorises him to perform maintenance operations such as not to create risks to persons, objects and the machine itself.

ATTENTIONDo not employ staff with qualifications different to those indicated.


Ed. 12/2013“L12004-0_850 Chap 2”

Chapter 2

GENERAL INFORMATION



GCZFabricaciones General Information Ed. 12/2013

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2.1 EDITING PICTOGRAMS

ATTENTIONThe indications preceded by this symbol contain information, prescriptions or procedures, which if not performed correctly, can cause injury, death or long term risks to health of persons and the environment.

CAUTIONThe indications preceded by this symbol contain procedures or practices, which if not performed correctly, can cause serious damage to the machine or the product.

INFORMATIONThe indications preceded by this symbol contain information regarding any subject of particular importance: failure to comply can lead to the contractual warranty becoming null and void.



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2.2 GLOSSARYThis section contains a list of terms not in common usage or with meanings different to normal, and the abbreviations used in the document.

DANGER ZONE: inside and/or in proximity of the machine where the presence of an exposed person constitutes a risk for safety and the health of the person itself;EXPOSED PERSON: any person that is entirely or partly inside a dangerous area;OPERATOR: person engaged to install, run, regulate, perform maintenance, clean, repair and transport the machine;MAN-MACHINE INTERACTION: any situation in which the operator interacts with the machine in any operational phase and at any time in the life span of the same;OPERATOR QUALIFICATION: minimum level of skill that the operator must have in order to perform the operation described;NUMBER OF OPERATORS: the number of operators suitable for performing the operation de-scribed optimally and deriving from a careful analysis performed by Vortex Hydra S.r.l. Therefore, the use of a different number of persons could prevent attainment of the expected result or put the safety of the staff involved in danger;MACHINE STATE means:

- the functioning mode: automatic start with maintained-action control, stop, etc.; - the safety conditions present on the machine: guards included, guards excluded, emergency stop pressed, type of isolation of the energy sources, etc;

RESIDUAL DANGER: danger that it has not been possible to eliminate or reduce sufficiently through the design against which the guards are not (or not totally) effective. The manual gives information regarding its existence and the instructions and events that allow to overcome it;SAFETY COMPONENTS: means a component use to assure safe functioning and whose break-down or bad functioning jeopardises the safety and/or health of exposed persons (e.g. lifting equipment, fixed, mobile or adjustable guard etc. electric, electronic, optical, pneumatic, hydraulic device that interlocks a guard etc.).

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2.2.1 Abbreviations

Chap. ChapterPar. ParagraphPag. PageTab. TableFig. FigureMin. MinimumMax MaximumDx RightSx LeftRif. Reference



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2.3 IDENTIFICATION DATA OF THE MANUFACTURERCompany name: VORTEX HYDRA S.r.l.Address: Via Argine Volano, 355 - 44034 Fossalta (FE) ITALYTel. 00 39 (0) 532/879411Fax 00 39 (0) 532/866766

2.3.1 Identification Data of the Machine

A - Year of Manufacture: 2013 C - Machine Code: M.00755 / M.00756B - Machine model: SV DN850 PN36

2.3.2 Information Regarding After-sales Assistance

INFORMATIONRemember that modifications of the machine performed by the user, without explicit writ-ten authorisation from Vortex Hydra S.r.l. make the warranty null and void and relieve Vortex Hydra S.r.l. from any liability for damage/injury caused to objects/persons.

This is particularly valid when the above-mentioned modifications are performed on the safety devices, lowering their effectiveness.

The use of non-original spare parts or parts different to those explicitly indicated in this manual and spare parts catalogue, relieve Vortex Hydra from any liability.

It is therefore recommended always to contact Vortex Hydra S.r.l. after-sales centres.

AFTER-SALES SERVICE ADDRESS

ITALY

VORTEX HYDRA S.R.L.Via Argine Volano, 35544034 Fossalta (FE)

ITALYTel. 00 39 (0) 532/879411Fax 00 39 (0) 532/866766

E-mail: [[email protected]]

A B

C


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Chapter 3

GENERAL DESCRIPTION



GCZFabricaciones General Description Ed. 12/2013

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3.1 SPHERICAL VALVE AND APPURTENANCE MAIN DATA

SPHERICAL VALVE (SV)Quantity (units) 2

Nominal diameter 850 mmTotal length 1328 mm

Nominal pressure 36 barTest pressure 54 barOpening time 60 sClosing time 20 s

Cylinder quantity/unit 1Cylinder diameter 260 mm

Cylinder stroke 670 mm

Total weight SV 9774.4 kg

BY-PASS

Quantity per unit 1

Nominal diameter 50 mm

Nominal pressure 40 bar

Total length 1978 mm

Total weight 147.2 kg

UPSTREAM PIPE


Total length 645 mm

Total weight 494 kg

DISMANTLING JOINT


Total length 800 mm

Total weight 566.31 kg



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3.2 DESCRIPTION OF MAIN PARTS

3.2.1 General

REFERENCE DRAWINGSNUMBER DESCRIPTION273A000 Lay-Out

The layout of GCZ Project is the following:

M.00755 M.007561

This valves are used in the hydroelectric power plant as a turbine protection to guarantee the emer-gency shut-off of the pressurized water flow of the penstock. They are placed immediately before the turbines and work automatically to shut-off the water flow in case of any turbine malfunction, lack of power or any specified condition. The shutter is actuated by one hydraulic cylinder moving it from the “ON” to “OFF” position by rotating of 90° on side trunnions. The valve in the open position has a fluid way which is essentially a straight cylinder so has approximately the same head losses as would occur in an equivalent length of pipe. Closure is effected by rotating the shutter 90° degrees, so it stops completely the fluid way. To guarantee the fast closing in lack of power suitable counterweight are installed on the shutter arm. Once shutter is closed, the perfect water tightness is guaranteed by Main Operation Seal: the downstream mobile sealing rings that close against the fix rings seal against the fixed part of the shutter (both made of stain-less steel with different grade of hardness). Other mobile ring closure (Maintenance seal) are installed in the upstream side of the shutter and are used only in case of maintenance to the Main Operation downstream seal without the necessity to remove the valve from the site. Both of them are operated by the pressure of the oil derivated from HPU with a dedicated system with piping (out of VH scope). Seats NEVER touch the valve during opening or closing.A complete description in the following paragraph.




L12004-0_850 Chap �Chap.

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3.2.2 Turbine Spherical Valve (SV)

3.2.2.1 Valve Body

REFERENCE DRAWINGSNUMBER DESCRIPTION273A001 Body valve 1 of 3273A001 Body valve 2 of 3273A001 Body valve 3 of 3273A002 Body valve downstream

The valve body is composed of two parts, both of steel plate welded construction, bolt together with 30 bolts M36x3x360 and 6 bolts M36x3x300. The valve body has a total length of 1328mm, with connection flanges at both ends and complete with welded in stainless steel lining for guiding the movable sealing rings.

3.2.2.2 Bushing, Sealing System

REFERENCE DRAWINGSNUMBER DESCRIPTION273A009 Bushing assembly273A010 Bushing support273A011 Flange for bushing support273A019 Mobile ring273A005 Fixed ring

Self lubricated bushing DEVA - BM 310x300x120mm. The bushings are closed with a flange and both are fixed with 10 screws M10x50 A2 to the bushing support.The trunnion sealing can be changed, if necessary without dismantling the SV. For changing the sealing, the operating lever must be removed, so the penstock must be dewatered or better the inlet of the valve must not be pressurized.Each SV has two indipendent sealing systems: the maintenance seal on the upstream side and the working seal on the downstream side. Both are metal to metal sealings, hydraulically operated by oil pressure (from the HPU).

2�Vortex Hydra s.r.l. - Via Argine Volano 355 44034 Fossalta (Ferrara) Italia - Tel. +39.0532.879.411 - Fax +39.0532.866.766 - e-mail: [email protected]



FabricacionesChap.

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3.2.2.3 Valve Rotor And Trunnion

REFERENCE DRAWINGSNUMBER DESCRIPTION273A004 Shutter assembly273A003 Shutter

Solid spherical valve shutter made from welded plate steel, with screwed-on trunnions with each 8 bolts M36x3x680 and 1 maintenance bolt M36x3x430 in the center on lever side, and 8 bolts M36x3x410 and 1 maintenance bolt M36x3x430 on opposite side.

The trunnion is the other key component of the valve, it is made of carbon steel and covered by stain-less steel layer . The rotation is made on self lubricating bearing made of bronze/graphite with limit of specific pressure up to 40 Mpa. The leakage trough the trunnion is prevented by two special seals of hard rubber. When the valve is closed the normal stress is taken by the trunnion bolts that are preloaded to maintain closed the surface between the trunnion itself and the shutter. During the rotation the torsional phase is supported by the small bushings around the trunnion bolts.This system allow an easy assembly phase ad great performances against the strongest loads in normal and emergency operations of opening and closures.

Fig. 2 - Trunnion sectionTRUNNION BOLTS BUSHING

TRUNNION BOLTS

TRUNNION BUSHINGIN BRONZE GRAPHITE

TRUNNION

2




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3.2.2.4 SV AnchoringThe anchoring consists of two base plates and 4 anchor bolts M30 (2 every base plate). The holes are bigger then the bolts in order to enable SV movement in longitudinal direction, for taking up expansions of upstream pipe.The base frame are fabricated by Vortex.

3.2.2.5 Hydraulic Cylinder

REFERENCE DRAWINGSNUMBER DESCRIPTION273A022 Hydraulic cylinder273A018 Actuator lever

Drive mechanism consists of 1 operating lever and 1 hydraulic cylinder, Ø260mm.Operating lever in welded construction is bolted to the trunnion with 8 bolts M36x3.The cylinder is connected to the valve body and to the hoist stirrup by a pivot with a self lubricated bush-ing, the stirrup is also bolted to the base plate with 6 bolts M30x3.5x370.Manual locking device rod in close position of the shutter can be connected to the valve body for main-tenance purposes.

3.2.2.6 Limit Switches And Position IndicatorThe SV is equipped with two electrical limit switch, completely open or completely closed, placed on the valve body, in the flow direction on the left hand side:

LIMIT SWITCH POSITIONPOSITION DEGREE STATUS SYMBOL

Vertical 90° Close CHorizontal 0° Open O

On the same side, also a visual position indicator, with a scale C and O, is erected.The SV is also equipped with 4 limit switches, completely open or completely closed, regarding the mobile rings.

LIMIT SWITCHES TYPEDB NUMBER DB CODE DESCRIPTION QUANTITY

52890 FIN-T XCKL515 Telemecanique mechanical limit switch, XCKL515 code

2

260633 INT-T XCK-L110 Telemecanique mechanical limit switch, 240Vac/250Vdc-10A, 1NC+1NO, XCK-L110 code

4




FabricacionesChap.

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3.3 OPERATING SEQUENCES FOR THE SPHERICAL VALVE MANOEUVRE

INFORMATIONThis sequence only gives an indication about the correct procedures to follow in order to properly manoeuvre the spherical valve without damage it.

All the indications only refer to the spherical valve and to its devices, when provided, such as hydraulic cylinders, bypass, HPU, oil and electrical circuits, limit switches and control devices: no conditions or interactions with other systems on the upstream or on the down-stream of the valve are taken into account. Furthermore, all the described operations on the valve do not take into account the machines and the devices that may be present on the upstream and on the downstream of the valve.

In this description will be indicated as:

“FULLY OPENED CONFIGURATION” the configuration with water passing through the valve, rotor in opened position and mobile rings not applied.

“FULLY CLOSED CONFIGURATION” the configuration with no water passing through the valve, rotor in closed position, downstream mobile ring applied and upstream mobile ring not applied (but it could be also applied).

“FULLY CLOSED CONFIGURATION FOR MAINTENANCE” the configuration with no water passing through the valve, rotor in closed position, upstream mobile ring applied, blockers (if foreseen) in locked position and downstream mobile ring not applied (but it could be also applied).

CLOSING PROCEDURE – NORMAL CLOSUREThis procedure indicates all operations necessary to bring the spherical valve from the “fully opened configuration” to the “fully closed configuration”.

Ensure to have the valve in the “fully opened configuration” by checking the signals from the limit switch on the rotor axle and those on the mobile rings. The rotor shall be in its opened position and both the mobile rings shall be in their “not applied” position (in this case also the blockers shall be in their unlocked position);Ensure the valves on the bypass line are in “closed position” and no water is flowing through the line. The limit switch on the needle valve (automated valve) shall give the signal of “closed position”.Give the closing signal for the valve: the “opened” signal from the limit switch on the rotor shall commute into “closed”. At this point the rotor is closed but the valve is not yet sealed and water is still passing through the valve to downstream. Note: in this condition the water is passing through the little gap between rotor and mobile rings and has a high velocity: this situation can lead to a very fast damage of the rings, so it should be maintained only for the shorter time as possible (for instance from the moment when the rotor reaches its closed position and the moment when the mobile ring applies).Give the “closing” signal to the downstream mobile ring: the signal from the limit switch shall com-mute from “not applied” into “applied”: now the valve is in its “fully closed configuration”.

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CLOSING PROCEDURE – NORMAL CLOSURE FOR MAINTENANCEThis procedure indicates all operations necessary to bring the spherical valve from the “fully opened configuration” to the “fully closed configuration”.

Ensure to have the valve in the “fully opened configuration” by checking the signals from the limit switch on the rotor axle and those on the mobile rings. The rotor shall be in its opened position and both the mobile rings shall be in their “not applied” position;Ensure the valve on the bypass line are in “closed position” and no water is flowing through the line. The limit switch on the needle valve (automated valve) shall give the signal of “closed position”.Give the closing signal for the valve: the “opened” signal from the limit switch on the rotor shall commute into “closed”. At this point the rotor is closed but the valve is not yet sealed and water is still passing through the valve to downstream. Note: in this condition the water is passing through the little gap between rotor and mobile rings and has a high velocity: this situation can lead to a very fast damage of the rings, so it should be maintained only for the shorter time as possible (for instance from the moment when the rotor reaches its closed position and the moment when the mobile ring applies).Give the “closing” signal to the upstream mobile ring: the signal from the limit switch shall com-mute from “not applied” into “applied”: now the valve is in its “fully closed configuration for main-tenance”. If the maintenance will not comprehend the downstream side of the valve itself or the rotor itself, it is possible to close also the downstream mobile ring as a further safety: the signal from the limit switch shall commute from “not applied” into “applied”.Engage the blockers on the upstream flange of the valve: set all of them in their locked position, in order to prevent a mistaken opening of the maintenance mobile sealing ring.Engage the mechanical lock on the lever in order to prevent a wrong opening command on the valve.

From this configuration it is possible to start operate on the downstream side of the vale, of the rotor and of the penstock.

CLOSING PROCEDURE – EMERGENCY CLOSURE This procedure indicates all operations necessary to bring the spherical valve from the “fully opened configuration” to the “fully closed configuration” in case of emergency closure.The valve is in “fully opened configuration” and normally working when an emergency occurs. The emer-gency signal must cause the following actions, in the given order:

Command the rotor of the valve to close (acting on the cylinder oil feeding).Command the automated valve on the bypass to close (the limit switch must give the “automated valve closed” signal).Once the limit switch on the valve axle gives the signal of “rotor closed”, both, or at least the downstream mobile ring, must be closed (signal from the limit switch shall indicate the ring as applied).The valve is in its “fully closed configuration” and no water is passing through the valve to downstream.

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FabricacionesChap.

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OPENING PROCEDURE – NORMAL OPENING and NORMAL OPENING AFTER MAINTENANCEThis procedure indicates all operations needed to bring the SV from the “fully closed position” and “fully closed position for maintenance” to the “fully opened position”.

Ensure that all of the blockers are in their unlocked position: in this case the maintenance mobile sealing ring is free to be opened.Ensure that the mechanical block on the lever is not engaged.Since the valve must be opened under balanced load, open the valves on the bypass line so that water can flow through the line. The limit switch on the needle valve (automated valve) shall give the signal of “opened position”.Once the pressure difference between the upstream and the downstream pipe is lower than the 10% of the nominal pressure it is possible to start opening the sealing rings (both upstream and downstream): the limit switches of both the mobile rings must commute from “applied” to “not ap-plied”: this means both rings are opened and the rotor is free to be moved.After both the limit switches of the upstream and downstream mobile sealing rings give the signal of “opened ring” it is possible to open the rotor: the limit switch on the rotor axle shall commute the signal from “closed” to “opened”. The “fully opened configuration” has been reached.Command the bypass automated valve to close (the limit switch must give the “automated valve closed” signal).

ATTENTIONNever manoeuvre one or both the mobile rings while the rotor is moving or is in opened position! This can damage the mobile rings and their sealing surface.

All manoeuvres on the mobile ring(s) must be made starting from the configuration of “ro-tor closed”!

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3.3.1 Working Principles – Movable Seal System DescriptionThe seal system adopted in this valves is a double movable seal system, these two features allow the advantages explained in the following.

The single seal is composed by two stainless steel rings of different shapes and different hardness, the first one, the less hard, is fixed on the rotor with stainless steel bolts and it moves solidal with the rotor itself (see Fig. 3).

Fig. � - Spherical Valve’s Shutter3




FabricacionesChap.

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The second one, the hardest, is positioned inside the body valve, and it’s free to move parallel to the flow, in both directions. It slides over seats collocated in the body of the valve, that are covered with a stainless steel layer. This ring is moved by the application of pressurized oil, taken from the HPU, the operations, ruled by a dedicated circuit, will be deeply described in the following. The shape of this ring is a kind of “T” that allow to have a greater surface in the sides where is needed the pressure application.Fig. 4 - Mobile ring shape

SPECIAL HARD RUBBER SEALS FOR THE PRESSURE SEATS

T-SHAPE MOBILE RING

4

Fig. 5 - Mobile ring’s seats stainless steel coveredSTAINLESS STEEL COVERING OF THE SEATS 5

�0Vortex Hydra s.r.l. - Via Argine Volano 355 44034 Fossalta (Ferrara) Italia - Tel. +39.0532.879.411 - Fax +39.0532.866.766 - e-mail: [email protected]



L12004-0_850 Chap �Chap.

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Fig. 6 - Mobile ring position6

When the rotor is perfectly aligned in closed position, the consent to move the mobile ring and close against the fixed one is given by the logic of the circuit (out of Vortex scope of supply). The perfect tight-ness is ensured by the contact between the two stainless steel surfaces of different hardness.The T-shape hardest one imprint a line of contact in the fixed one, allowing the perfect restrain under the water pressure. To prevent the leakage trough the movement rooms of this movable seal, three special hard rubber seals are used. These seals are suitable for oil/water holding, in sliding application against metal, as in this case.

Fig. 7 - Tightening line between mobile and fixed ring

TIGHTENING LINE

7

As has been introduced before, the valve seal system is composed of two different seals, the down-stream service seal and the upstream maintenance seal. The service seal works for the normal opera-tion on the downstream side of the valve, while the maintenance seal works only in case that has to be done maintenance on the service seal itself. This double seal system allows to save time during the maintenance operation on the valve. The closure of the upstream maintenance seal, permits to manage the downstream side without emptying (and later re-filling) the penstock, a manoeuvring that could take from two days to one week (or even more).




FabricacionesChap.

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Fig. 8 - Double seal system in a spherical valve

SERVICE SEAL SYSTEM

MAINTENANCE SEAL SYSTEM 8

The mind of the working procedures is the dedicated circuit, connected to the control panel and to the HPU (out of Vortex scope of supply). Due to safety reasons, the circuit works with oil taken from the HPU.




L12004-0_850 Chap �Chap.

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3.4 RING OPERATING MECHANISM

3.4.1 Description Of OperationSpherical valve’s hydraulic sealing is insured by rotor upstream and downstream seal rings. Upstream seal ring is normally opened. The closing can be made only with the valve closed, by voluntary maneu-ver. Upstream seal ring function is to lock water circulation when rotor is closed, in order to safely make downstream seal ring maintenance, without empting upstream penstock.Rotor upstream and downstream seal rings, must be opened when the rotor is open or during opening/closing operations. The sealing can be made only when the rotor is closed.

ATTENTIONThese instructions are very important, because an interference between valve’s rotor and seal rings could damage the system.

Opening and closing of each seal ring are made by a dedicated circuit, using the oil in pressure taken from the HPU (out of Vortex Scope). The control circuit will be hard-wired on a panel near the valve (out of Vortex Scope).Reference drawings are: “L12004-SI-CID-000 M.00755” (ref. fig. 9) and “L12004-SI-CID-000 M.00756”“L12004-SI-CID-000 M.00756” (ref. fig. 10). The components are identified on the scheme by means of references and functions. The components are identified on the scheme by means of references and functions.

Fig. 9 - Ring Operating Mechanism for Valve M.007559

��Vortex Hydra s.r.l. - Via Argine Volano 355 44034 Fossalta (Ferrara) Italia - Tel. +39.0532.879.411 - Fax +39.0532.866.766 - e-mail: [email protected]



FabricacionesChap.

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Fig. 10 - Ring Operating Mechanism for Valve M.0075610

3.4.2 GeneralThe solenoid valves that allow to work the rings are electrically actuated and in case of black-out all the system automatically get set for the emergency closure: without electrical power the mobile rings get the opened (not applied) configuration. The reason is that, if the valve is opened, first it must be closed the rotor then can be closed the ring(s).




L12004-0_850 Chap �Chap.

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3.4.3 Operating SequencesThe valve sealing is made by manoeuvring the circuit that applies/not applies the mobile rings.

In the following description it will only be indicated how to apply (seal the valve) or not apply (make the rotor free to be opened) the mobile sealing rings, regardless the real position of the rotor, of the blockers or the real feasibility of the manoeuvre.

ATTENTIONNever manoeuvre one or both the mobile rings while the rotor is moving or is in opened position! This can damage the mobile rings and their sealing surface.

All manoeuvres on the mobile ring(s) must be made starting from the configuration of “ro-tor closed”!

OPEN BOTH THE MOBILE RINGS (get them as “not applied”).The configuration shown in the drawings “L12004-SI-CID-000 M.00755” and “L12004-SI-CID-000“L12004-SI-CID-000 M.00756” is the one that keeps both the mobile rings opened. In this configuration none of the rings ap- is the one that keeps both the mobile rings opened. In this configuration none of the rings ap-plies and the rotor can be moved (if no other signal opposes).

CLOSE BOTH THE MOBILE RINGS (get them as “applied”).In order to close both the mobile rings, the solenoid valves must be energized (items 2 and 1): in this case both the mobile rings will apply on the rotor (the rotor must be closed and the rings will seal the valve).

CLOSE ONLY THE SERVICE RING (DOWNSTREAM RING) (get it as “applied”/”not applied”)In order to close the only service ring (downstream ring) manoeuvre as follows:

set the circuit as shown in the drawings “L12004-SI-CID-000 M.00755” and “L12004-SI-CID-000“L12004-SI-CID-000 M.00755” and “L12004-SI-CID-000 M.00756”energize the solenoid valve (item 2);energize the solenoid valve (item 1) relative to the downstream ring.

CLOSE ONLY THE MAINTENCE RING (UPSTREAM RING) (get it as “applied”/”not applied”)In order to close the only maintenance ring (upstream ring) manoeuvre as follows:

set the circuit as shown in the drawings “L12004-SI-CID-000 M.00755” and “L12004-SI-CID-000 M.00756”energize the solenoid valve (item 2);energize the solenoid valve (item 1) relative to the upstream ring.

1.

2.3.

1.

2.3.




FabricacionesChap.

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3.5 BY-PASS

REFERENCE DRAWINGSNUMBER DESCRIPTION273A040 By-pass

One by-pass DN50 PN40, situated under 30° clockwise in respect of horizontal line, right hand side in flow direction, consisting of 2 manually operated valves and an hydraulically controlled needle valve.

INFORMATIONFor any other information see the Quality and Data Book L12004 - DB GEN.

The manual valve, on upstream side, remain normally always open and will be used for maintenance purpose only. The needle valve has to be open every time for filling up the penstock and equilibrating pressure before opening of the SV and will be closed automatically when the SV is in open position.




L12004-0_850 Chap �Chap.

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3.6 UPSTREAM PIPE

REFERENCE DRAWINGSNUMBER DESCRIPTION273A044 Upstream pipe

Upstream connection pipe welded construction, with one connection flanges for by-pass DN50.A provisional one of 1” GAS for instrumentation, if not necessary can be closed with a plug.The theoretical built in length is 645mm.




FabricacionesChap.

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3.7 DISMANTLING JOINT PIPE AND DISMANTLING JOINT BOLT

REFERENCE DRAWINGSNUMBER DESCRIPTION273A036 Dismantling joint assembly273A037 Dismantling joint273A025 Short tie rod

Dismantling joint pipe welded construction.The theoretical built in length of the assembly is 815mm.




L12004-0_850 Chap �Chap.

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3.8 MAIN FLANGE CONNECTIONThe main flange connection consists of each one set of the following bolts and nuts:

BOLTS & NUTS SPECIFICATIONTYPE QUANTITY WHERE USED AXIAL PRELOAD

M36x3 L=360mm 30SV half-body / SV half-body

300kN for all

M36x3 L=300mm 6

M36x3 L=410mm 8Right trunnion - without lever

(in the circumference)M36x3 L=430mm 1 Right trunnion - without lever (in the centre)

M36x3 L=680mm 8Left trunnion - with lever(in the circumference)

M36x3 L=430mm 1 Left trunnion - with lever (in the centre)M36x3 L=300mm 24 SV / Upstream pipeM36x3 L=300mm 24 SV / Dismantling jointM24 L=220mm 40 Dismantling joint / Downstream pipe

The axial preload is given by a hydraulic tightener: this grabs the threaded bar and pulls, stretching it, to create the desired axial preload. At this point the bolts are screwed manually up to the stop with the flanges (it is good practice to limit the maximum axial preload at 70/75% of the tie rod’s yield strength). The tightener is a commercial component that is easy to order from a catalogue.

INFORMATIONProvide an axial preload ensures greater safety and adherence to the calculation note, and is essential when you want a high control of preload provided with tie rods and bolts (as in tightening the trunnion, but in reality also for the flanges subjected to high PN).

The torque wrench (manual or hydro-actuated) does not provide the same accuracy, be-cause it is difficult to determine how much of an optimal torque output is lost to overcome the friction between the bolt and washer, washer and flange and between the screw and the nut.




FabricacionesChap.

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3.9 PAINT AND SURFACE TREATMENTPAINTING OF AIR CONTACT STATIONARY PIECES:

Surface preset: Sa 2 1/2Background painting: 1 layer of Inorganic Zinc primer, dry thickness 60 �m�mFinal painting: 2 layers of bi-component epoxy paint, dry thickness 150 �m�mTotal min. dry film thickness: 210 �mFinal colour: RAL 5005 (Blue)

PAINTING OF AIR CONTACT MOVABLE PIECES:Surface preset: Sa 2 1/2Background painting: 1 layer of Inorganic Zinc primer, dry thickness 60 �mFinal painting: 2 layers of bi-component epoxy paint, dry thickness 150 �mTotal min. dry film thickness: 210 �mFinal colour: RAL 2013 (Yellow)

PAINTING OF WATER CONTACT PIECES:Surface preset: Sa 2 1/2Background painting: 1 layer of Inorganic Zinc primer, dry thickness 60 �mFinal painting: 2 layers of coal tar epoxy paint, dry thickness 250 �mTotal min. dry film thickness: 310 �mFinal colour: Black

TEMPORARY PROTECTION OF MACHINED SURFACES:Surface preset: cleaned with proper solventBackground painting: 1 layer of varnished diluted (Rust Veto 342, Tectyl 506 or equivalent), dry thickness 40 �m

CHAMFERS FOR WELDING:Surface preset: cleaned with proper solventBackground painting: 1 layer of epoxy iron bi-component oxide (Interplate 27 or equivalent), dry thickness 20 �mFinal colour: Oxide Red

CONCRETE CONTACT:Surface preset: mechanical cleaning

•••••

•••••

•••••

••

••

•

•


Ed. 12/2013“L12004-0_850 Chap 4”

Chapter 4

MAINTENANCE



GCZFabricaciones Maintenance Ed. 12/2013

L12004-0_850 Chap 4Chap.

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4.1 CONTROL AND ROUTINE MAINTENANCEThese instructions have been drawn-up with the intention of being a guide for performing preventive and programmed maintenance in order to keep all appliances perfectly efficient.

4.1.1 Maintenance Of The Mechanical Parts

DIMENSIONS AND WEIGHTS OF VALVE MAIN PARTSDESCRIPTION DIMENSIONS (MM) WEIGHT (KG)

Body valve 1328 x 1540 x H. 1740 9774.4Shutter 1150 x 962 x H. 950 1072.5

Fixed ring Ø865 - L=19 10.5Bushing support Ø375 - L=160 40.35

Flange for bushing support Ø460 - L=47 21.1Mobile ring Ø995 - L=131,5 106.7

Right trunnion Ø300 - L=239 112.3Left trunnion (cylinder side) Ø300 - L=257 119.8

Actuator lever 300 x 250 x 1275 227.8Cylinder support 360 x 240 x H. 185 20

Hydraulic cylinder Bore Ø260 - Rod Ø80 - Stroke 670 390.9Upstream pipe Ø1150 - L=645 494

Central counterweight 900 x 900 x 80 534.1Lateral counterweight 900 x 900 x 70 443

Dismantling joint Ø1150 - L=800 566.3

By-passØ50 - centre to centre distance

L=1978 H=400147.2

MAINTENANCE CHECKSTYPE OF CHECK FREQUENCYCheck that the painting cycle of the mechanical structures is in good state. Restore the paint in deteriorated areas after careful cleaning.

Once a year

When the valves remain inactive for a long period of time, a check of the correct functioning of the manoeuvre and sealing parts is recommended, performing the closure manoeuvres completely.

Every three months

Check that the seals have kept the regulation for the correct closure of the valve. If necessary it is sufficient to perform a new regulation by acting on the adjusting screws.

Every three months

Check that all flangings and the O-ring gaskets do not have leaks. Every three monthsCheck that the hydraulic connections to the manoeuvre cylinder do not have oil leaks.

Every three months

Check valve internal surface regarding erosion and cavitation. (see photo 1)

Once a year



Ed. 12/2013L12004-0_850 Chap 4 Maintenance GCZ

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INFORMATIONIn case of erosion and cavitation point it must be record with extension and location. If possible photos must be taken as part of this report.

All mechanical couplings between rotating moving parts relative to one with respect to the other, are equipped with self-lubricating bushes that therefore do not require periodic greasing.

1



GCZFabricaciones Maintenance Ed. 12/2013

L12004-0_850 Chap 4Chap.

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4.1.2 Spare Parts (Not Supplied)

SPARE PARTS LISTDB NUMBER DB CODE DESCRIPTION QUANTITY

262276 273A019 Mobile ring n° 2262261 273A005 Fixed ring n° 2

262332CARCO PRP 02A06

873/901/9.5CARCO Seal, CARCO PRP series, PRP 02A06-9010-A-32-N code, dim. 873/9011/9.5

n° 4

262331CARCO PRP 02A06

967/995/9.5CARCO Seal, CARCO PRP series, PRP 02A06-9950-A-32-N code, dim. 967/995/9.5

n° 2

262270BOCC DEVA.BM

362/9P 300X310X120DEVA.BM 362/9P self-lubricating bushing, 300x310x120

n° 2

259760CARCOTEX UG

300/330/20CARCO Seal, CARCOTEX/UG/S820I 300/330/20

n° 4

240219 OR 4 OR Seal, Ø4, NBR 70 mt 8239797 OR 8 OR Seal, Ø8, NBR 70 mt 10239798 OR 10 OR Seal, Ø10, NBR 70 mt 20

259763 O-RING 3 INT.38ANGST+PFISTER O-Ring seal, Ø3, int.38, ORM 0380-30 code

n° 2

259762 O-RING 3 INT.14ANGST+PFISTER O-Ring seal, Ø3, int.14, ORM 0140-30 code

n° 4

262223 O-RING 6 INT.18 O-Ring seal, Ø6, int.18 n° 6262781 273A022-RICAMBI Spare parts for hydraulic cylinder n° 1

INFORMATIONThe use of non-original Vortex Hydra spare parts is not recommended. Their use will make any warranty become null and void.


Ed. 12/2013“L12004-0_850 Chap 5”

Chapter 5

PLANT LIFE PHASES



GCZFabricaciones Plant Life Phases Ed. 12/2013

L12004-0_850 Chap 5Chap.

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5.1 HANDLING AND TRANSPORTThe plant is designed to be transported to the place of final installation. Once transported to the site of installation, the appliances are set-up and connected to the energy sources (electric, hydraulic), that are included in the supply (electrical panel).The handling and transport operations must be performed with great care, only by specialised qualified staff, managing and co-ordinating the operations in a way to guarantee safety of the persons and no damage to the valves.

Check suitability of the lifting and transport means of the machines, of the handling path and the access routes to the deposit position. Coordinate the persons present on site in a way to guarantee the safety of unloading and handling operations. Check that the place where the machines are to be deposited is adequate to house the appliances and suitable for positioning and storage. In particular, check the overall width, height and depth, as well as the conditions of the floor and ground.

Once installation has been performed in the place of production, no other handling or transport opera-tions are envisioned.

If the appliance must be replaced during the life span of the machine, the operator can commission the operation to Vortex Hydra S.r.l. or perform autonomously taking on the fees and responsibility of disas-sembly, handling and any other operation necessary.

Any modification to the plant that is not performed directly by Vortex Hydra S.r.l., i.e. any replacement of components or their modification, must be considered as a substantial modification to the plant itself, with the warranty and all responsibility of Vortex Hydra S.r.l. regarding machine functioning and the safety of the operators consequently becoming null and void.



Ed. 12/2013L12004-0 Chap 5_850 Plant Life Phases GCZ

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5.1.1 Handling Of The Spherical ValveFor a correct and safety handling of the spherical valve, use the dedicated plates identified in yellow (see fig.1)

1

ATTENTIONFor a correct and safe handling, it is very important to use all the plates simultaneously.




L12004-0_850 Chap 5Chap.

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5.2 PACKAGINGThe plant is designed to be transported inside one or more containers, crates or lorries. The appliances are fastened inside using ropes (steel or other materials).

5.2.1 Packaging Of The Spherical ValveTo move the case with body valve inside, use the dedicated devices provided for this purpose.

The spherical valve could arrive at destination partially disassembled: the main body with arms blocked in the safety position by a mechanical retainer and the rest (the remaining parts of the arms, the counter-weights, the cylinders and the base) packaged inside one or more cases.

ATTENTIONBefore removing the packaging or safety blocks from the machines, make sure that they are stable. During transport the machines may have moved and be in an unstable position. It is extremely dangerous to unpack the machines before this control because it could move, fall or tip over causing injury to persons or damage to the machines themselves.




FabricacionesChap.

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5.2.2 Shipping Elements

2

3




L12004-0_850 Chap 5Chap.

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POS. DWG. DESCRIPTION Q.TY WEIGHT KG.1 273B000 Body Valve Assembly 2 9774.42 273A022 Hydraulic Cylinder Øi 260 x 80 x 670 2 390.93 273A044 Upstream Assembly 2 571.14 273A036 Dismantling Joint Assembly 2 1484.25 273A040 By-Pass DN50 PN40 2 147.26 273A047 Valve’s Embedded Elements 2 121.77 273A057 Locking Bar Assembly 2 8.78 273A053 Counterweight 2 4341.59 273A045 Valve’s Embedded Elements 4 87.6

10 273A021 Cylinder Support 2 2011 273A046 Cylinder Support 2 18




FabricacionesChap.

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5.3 ERECTION, ASSEMBLY AND INSTALLATIONOnce the appliances are received at the final installation site, the operations can start.

The installation activity envisions:the set-up of the appliances;the check of assembly alignments;the definitive fixing.

It is not possible to generalise these operations as they greatly depend on site conditions: they are ac-tivities that must be evaluated case by case.The presence of several suppliers on site, the access routes for handling the machines, the presence of construction restraints, the amount of labour available, greatly affect installation. So much so that every site can be considered as a unique combination of the above-mentioned factors.

For these reasons it is necessary that all installation activities are performed by expert staff trained in industrial assemblies, under the careful supervision of Vortex Hydra S.r.l. It is not recommended to per-form these activities without advising Vortex Hydra S.r.l.

Once the mechanical assembly has been concluded, proceed with electrical, hydraulic wiring and water connections.

ATTENTIONBefore removing any safety retainers from the mobile parts, check that the appliance is safe, on a stable surface and fixed well, in a way to prevent injury/damage to persons/objects.

5.3.1 Valve PositioningThe following assembling procedure, is based upon the assumption that the axes of the existing pipes and of the foundations give the points of reference needed to correctly execute the site erection.Otherwise if one or both of the references would not be available, it would be necessary to identify them though the stretch of signalling drawstrings.Be careful, when the valve is ready to be unloaded from the truck, follow these instructions (recommended):1) Unload the two spherical valves2) IMPORTANT: The valve must be placed on the means of transporting, so that it arrives on site already predisposed for the discharge and lined up to the main pipe as represented in the scheme3) Set an inclined frame in suitably calculated to hold the valve weight during unload4) Arrange proper lubrication5) With the help of hydraulic jacks the valve must slide on metal beams, laided in cement, lubrificated with grease.

•••




L12004-0_850 Chap 5Chap.

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5.3.2 Valve AlignmentBefore connecting the valve to the conduits it is necessary to prepare the anchorages to the civil works.The first operation is to predispose the basement and regulate it through the 8 bolts M30 (4 for valve basement and 4 for cylinder basement).

N.10 M30

4

Then the valve is positioned on the base structure without fixing completely the 4 screws TE M30.During this operation also 4 washers have to be lodged into the 4 buttonholes on valve and cylinder basement.Then it is possible to proceed to the regulation of valve position according to the measures found with reference to the civil works and existing piping.When the valve is in the right position the nuts of the 4+4 stirrups of basement have to be welded the 4 screws TE M30 must be tighten in order to fix the body valve.Then it is necessary to fix temporary some flange bolts, without tighten they, to keep aligned the valve to the upstream and downstream pipe, and checking that the o-ring seals are in correct position into the seats.At this point, it is possible to proceed with the upper concrete casting on the basement.

ATTENTIONIt is very important that the screws result in the middle of the slots of the valve base struc-ture, to grant them the possibility to follow the expansion of the pipe with little longitudinal movements.




FabricacionesChap.

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After the valve position is fixed, the hydraulic cylinder (ref. to drawing 273A022) can be placed, adjusted and connected to the system.First of all, the anchoring baseplate of the cylinder (ref. to drawing 273A047) must be put in place and adjusted in order to have the foreseen positioning referred to the valve trunnion axis: after this first ad-justment it can be embedded into the first stage of concrete.After the first stage got dry, it is possible to put in place the hydraulic cylinder and connect it to the base-plate and to the valve lever: it is important to check that the signs on the trunnions indicating the rotor fully closed position are aligned when the hydraulic cylinder is in its closed configuration (low position of the valve counterweight lever, minimum length of the cylinder). If the signs are not aligned, the floor anchoring of the cylinder must be adjusted in order to get the alignment: this operation is fundamental in order to guarantee the valve sealing by the mobile rings.Only when this issue is correctly done it will be possible to mount the counterweight ballast on the lever.The ballast plates (ref. to drawing 273A033) can be mounted once the main plate (ref. to drawing 273A032) is fixed on the lever: by means of a crane, the main plate is put in position between the lever arms and than fixed. On the main plate can now be mounted the threaded rods and, one by one, the other plates.Once all the plates are mounted the nuts can be tightened.Make the last check on the signs on the trunnion and move the lever, using the hydraulic cylinder, in order to open and close the valve : it is important to check that the cylinder can run the entire stroke to check that the extreme lower positions of the lever correspond to fully closed rotor position (signs on the trunnion aligned) and that the extreme higher position correspond to fully opened rotor position.After these checks, it is possible to place the second stage concrete on the cylinder foundation and to place and adjust the locking system, both embedded elements (ref. to drawings 273A045 and 273A047), and locking eye: this latter must be placed and adjusted referring to the position of the eye placed under the main ballast plate and the manual locking pin must be easy to insert and pulled out.Now it is possible to fix the locking system by casting the concrete.




L12004-0_850 Chap 5Chap.

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INFORMATIONDuring the assembling of the valve rotor into the valve body, the alignment marks on trun-nions and body must coincide: their alignment indicates the correct “fully closed” position for the rotor. (see fig. 5).

Also during the assembling of the counterweight lever and of the hydraulic cylinder the alignment marks on trunnions and body must coincide: their alignment indicates the cor-rect “fully closed” position for the hydraulic cylinder and the lever: basing on this configu-ration it can be made the positioning, the alignment and the adjustment of the cylinder(s), of the locking pin(s) of the lever and of their connection on the basement.

ROTOR IN CLOSED POSITION5

5.3.3 Bolts And Nuts Flange TighteningWhen all the operations above described have been done, it is possible to tighten completely the bolts of the flanges.During the tightening operations it is essential to make sure that all the cord rings remain correctly positioned.Insert all the bolts on the flanges and tighten them completely as per table in par. 3.9.




FabricacionesChap.

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5.3.4 Electrical Limit Switch, Mechanical Position IndicatorCheck the electrical limit switch that signal the opened and closed position of the valve, placed on the left side in the same direction of the flow.

6

Check also the limit switches that signal the opened and closed position of the mobile rings.Check also the fixing of the graduated plate to the valve body on the cylinder side with screws in the provided holes, and the indicated needle with screws on the external diameter of the level.




L12004-0_850 Chap 5Chap.

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5.3.5 By-PassIt is necessary to control only the tighten of the bolts.

FORMATO: A1

BY-PASS

7

5.3.6 Electrical, Hydraulic And Water CircuitThe electrical and instrumentation items must be in position before the welding joints are done, to avoid damage.

For everything about the connections for equipment of this paragraph, the referring drawing are:

VORTEX NUMBER DESCRIPTIONL12004-SI-CID-000 M.00755 Oil scheme for mobile rings M.00755L12004-SI-CID-000 M.00756 Oil scheme for mobile rings M.00756

L12004-CBM-M.00755 Terminal connection plan M.00755L12004-CBM-M.00756 Terminal connection plan M.00756




FabricacionesChap.

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5.4 COMMISSIONING, INSPECTIONWhen installation has been concluded, commission and inspect the plant. As for assembly and installa-tion, these operations are also extremely delicate and must be carried out exclusively by qualified staff under the supervision of Vortex Hydra S.r.l.

INFORMATIONAll responsibility is declined for interventions not authorised by Vortex Hydra S.r.l. staff

ATTENTIONBefore starting the appliance, carefully delimit (using fences) the areas at risk affected by the radius of action of large mobile parts (e.g. counter-weights and relative levers), in order to prevent injury/damage to persons/objects.




L12004-0_850 Chap 5Chap.

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5.5 DEMOLITION AND SCRAPPINGAlways contact Vortex Hydra S.r.l. Italia when the plant must be replaced or disassembled. At that time it will be possible to analyse the possibility of selling the plant second-hand, without disassembling and scrapping it. If it is decided to proceed with demolition, it will be necessary to prepare a detailed man-agement plan of the operations, considering the risks, carefully planning the activities and identifying the work areas.

ATTENTIONDemolishing an existing plant is as difficult and complex as building a new one. It must be remembered that the machinery can contain hydraulic oil, electrical material and metal and plastic parts. It is the duty of the management of the new building to consult and find operators authorised to demolish and scrap the plant.

mantenimiento y montaje manual de la válvula esférica2

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