urea service control valves

8/10/2019 Urea service control valves

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Uhde High Pressure TechnologiesA companyof ThyssenKruppTechnologies T

K

High Pressure Equipmentfor Urea Plants

[NH2]2CO


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02The World of Urea

Latest references Capacity

(mt/Day)

2007 Qatar Ferti li zer Comp. (S.A.Q.), (QAFCO III), Umm Said, Qatar 2.000

2006 Qatar Ferti li zer Comp. (S.A.Q.), (QAFCO III), Umm Said, Qatar 2.0002006 Mopco, Egypt 1.925

2006 Sirte Oil Company, Libya 1.750

2005 Asean Bintulu Fertilizer SDN. BHD, Bintulu, Malaysia 1.500

2005 Sohar International Urea Chemical, Oman2005 Agrium Inc., Canada


2005 Ruwais Fertilizer Industries, Abu Dhabi, UAE 1.500

2004 SAFCO III, Al-Jubail 1.7502004 Helwan, Egypt 1.925

2004 Alexfert, Egypt 1.925

2004 Suez II, Egypt 1.925

2004 SAFCO IV, Al-Jubail 3.2502003 GAP Tecen, Turkmenistan 1.050

2003 Pt. Pupuk Kalimantan Timur (Kalt im III), Bontang, Indonesia 1.725



2002 Sirte Oil Company, Marsa El Braga, Libya 1.7002002 El Delta Fertilizer, Talkha, Egypt 1.750



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Fertilizer complex in Malaysia

Fertilizer complex in Abu Qir, Egypt

5 valves as complete equipment for HP service

FertilzsercomplexinBellePlaine,

Canada

Welcome to our world of high pressuresIf matter is compressed to several hundred

or thousand times the atmospheric

pressure, its properties partially change

dramatically and there are exciting options

of using pressure as a tool.

For more than 75 years we have been

researching our world of high pressure

and we have realized: The more we know,

the more chances arise for us and for all

people accompanying us on our way into

this fascinating world.

Due to decades of experience and the

cooperation with all important licensors

like Stamicarbon, Snamprogetti, Urea

Casale or Toyo Engineering, Uhde High

Pressure Technologies has become one

of the leading suppliers in the fertilizer

field.

Uhde High Pressure Technologies designs,

fabricates and supplies valves, fittings

and prefabricated piping for every well-

known licensor and customer.

Our scope of suply Project management

Engineering

In house manufacturing

Erection, supervision

Service

Our product range

All kind of HP valves

All kind of fittings

Prefabricated HP isometrics

Your advantages

Superior quality and technology

Reliable partner

Uhde valves are custom-tailored

Permanent exchange of experiences

with clients and licensors

Selection of first-class components

Support and after-sales service

Prefabrication of complete piping

Over 60 reference plants equipped

according to most major licenses

Cooperation with all international

engineering contractors like

Snamprogetti, Mitsubishi HeavyIndustries, Kawasaki Heavy Industries,

Toyo, Uhde GmbH

50 years of experience for high-pres-

sure Urea equipment

Life long spare parts

03


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Materials

Name Description Notes

1.4429 316 LN mod. STAC BC.01/Snamprogetti SPC.CR.VR.510

X2CrNiMoN17-13-3

1.4435 SA 336 F316 L mod. STAC BC.01/ Snamprogetti SPC.CR.VR.510

1.4466 25Cr-22Ni-2Mo STAC BC.05/Snamprogetti SPC.CR.VR.510

Code Case 2038

Safurex UNS S32906 STAC BE.06

Code Case 2295-2

Ferralium 255 ASTM A473 UNS S32550

X2CrNiMoCuN25-6-3

HVD1 1.4592

X5CrNiMoCuN25-8

1.4462 SA 479 S 31803 STAC BE.01

1.0566 SA 350 LF2

04

Top Technology and Top QualityUhde HPT manufactures all types of

valves which are required in the

HP section of an urea plant.

All valves are completely

free of copper-bearing

metals. Recent optimiza-

tion of the product lines

covers a modular design in

order to easily and cost-effi-

ciently adapt the valves to the

varying piping standards of plant

contractors. Development is ongoing for

the application of new alloy totally avoid-

ing the well-known corrosion problems in

HP urea service.

Due to the highly aggressive nature of

the process media at high pressures of

200 bar and temperatures of 180C the

urea process which seems to be simple

demands highest technical standards.

This concerns the valve technology in

the synthesis loop in particular.

Forgings for valve bodies and internals Interchangeable seat according to

specifications

With heating jacket and/or heating

bores

Various types of connection

Various actuators

Pressure ranges200 - 500 bar (20 - 50 MPa

2900 - 7250 psi)

Nominal diameters

1/2 - 16"

Connections

Threaded flange with lens-type seal

Welding neck flange with diverse seals

Weld-on ends

Weld-on ends, sleeve-type

Clamp connections

Special flanged connection

Actuators

Hand wheel up to 2.5"

Spur gear from 3" up

Pneumatic diaphragm actuator or

piston actuator

On/Off valve, 6, 378 bar,

piston actuator

Gear Operated On/Off valve

On/Off valve, piston actuator with

hand-wheel, 6, 225 bar

HP angle valves with handle or ratchet


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05ValvesExperience from Thousands of Valves

Carbon dioxide valve6, 200 bar, 200 C,

piston type

Ball check valve, 325 bar,size 6-200 mmAnalyzer valve, 320 bar, size 6 mm


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06

Control valvesThe control valve is an essential constitu-

ent for the process. This valve is charac-

terized by high speed, high positioning

accuracy and a long service life.

High accuracy is achieved by an electronic

valve positioner designed for rapid signal

conditioning. The positionof the valve stem

is measured using a position transmitter

in order to obtain great reproduction.

Many years of experience in the design-

related arrangement of the seat and the

cone and in the selection of the appro-

priate materials led to the achievement

of long service lives. The simple and

robust structure of the valve and the con-

trol parts results in the highest degree of

functional safety.

Flow measurements according toDIN EN 60534-2-3

e.g. valve size 12

Seatdiameter: 265 mm

Urea solution reactor control valve

10-14,167 bar, 200 C

Butterfly control valve, 8, 174 bar, 210C CO 2 control valve, 6, 200 bar

with heating channels, full stroke time less

than 6 sec. for opening and 6 sec. for closing

Control valves are part of control

loops ensuring save and reliable

production plant and so they must

be perfectly adapted to the individual

process parameters. We need your

specifications in order to prepare a

quotation custom-tailored for yourrequirements. Just fill in our small

Excel data file from our website

www.uhde-hpt.com

Valve body heating channel connections

Actual Cv100 = 1580 GPM (US)Characteristic curve complies with linear characteristic

according to DIN IEC 534-2-4 at a controlling ratio of

1:50


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07Site Installation

Carbamate gas control valve2-4, 200 bar, 200 C,

diaphragm type

Control valve, 3, 200 bar, 200 C,diaphragm typeControl valve, 8, 200 bar, 200 C,diaphragm typeUrea solution product control valve6-10, 200 bar, 200 C,

diaphragm type


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HP piping Fabrication of HP piping for Urea plants

References up to 16" HP piping

Bending and welding of pipe classes

according to Uhde HPT Standards

PN-200, PN-325 und PN-500

All piping must be corrosion-resistant

and should also satisfy the particularly

stringent requirements dictated by the

location in the urea plant and by the

process licensor.

Uhde supplies completely prefabricated

and tested isometrics and spools. The

high demands on the scope of tests car-

ried out and on the fabrication process

can only be satisfied by a comprehensive

quality system and properly qualified

personnel. This means, for example,

that each weld has to be X-rayed several

times and that corrosion resistance has

to be tested according to the instructions

prevailing for each combination of welding

filler metal, piping and fitting material.

Heat exchanger

The hairpin exchanger can be operated for

a pressure range up to hundreds of bars

on tube- or shell-side. The exchangers

have a big surface and a narrow design

to place them into an existing plant.

Controlling aggressive fluids

The standard method of testing stainless

steel used for urea plants is the Huey test,

however, depending on the materials, the

Streicher test or Strauss test can also beapplied.

Prefabricated spool with threaded welding nipplesize 200 mm, material 1.4466

Prefabricated isometrics during final welding

Heat exchanger up to 300 bar, 1-24, stainless steel

Welded pipe spools waiting for

further machining

Portable lasertracker for mea-surement of piping isometrics

Ultrasonic testing machine

for pipes

08


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09PipingThousands of Meters of Piping Experience

Quality control after bendingThreading of pipe ends Special flange connection


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Engineering, Manufacturing, Tests, Service10

Spare parts for after-sales service on stockPre-assemblyBody fabrication, 1-2,5, 320 bar Uhde test facility


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11

Project management

Engineering

In house manufacturing

Erection, supervision

Tests

Flow measurement

Sizing of process-critical control valves

for Urea plants (Cv measurement)

Pressure test

Leakage test

Functional test (On/Off and control)

Performance test (speed measurement)

Service

Transportation service

Erection

Commissioning

Training of operating personnel

Introduction into high-pressure

technology

Conceptual design of the HP valves

High-pressure components Assembly and disassembly of

components

Maintenance and repair

After-Sales service

Lifetime supply of spare parts

Emergency stock of special

materials

Recommendation for optimized

design and improved material

Repair and overhauling of damaged

plants and components

Supervision at site during erection,commissioning or overhauling

Machining

Assembly Training

Tests and inspectionFlow measurement

Engineering and design


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empeer2/2007,

technicalmodificationsre

served

Uhde High Pressure Technologies GmbHBuschmuehlenstr. 20

58093 Hagen, Germany

Tel.: +49 2331-967- 0

Fax: +49 2331-967- 370

[email protected]

www.uhde-hpt.com

Supercritical FluidsLDPEHPP Waterjet Cutting

Visit us at

www.uhde-hpt.com

Uhde High Pressure Technologies

a company with ASME/ISO certifications

These certifications prove that we at

Uhde meet the requirements of the above

standards and are thus able to respond

to all demands of our customers on an

international level.

Our manufacturing program:

HP pipes and isometrics

HP valves and fittings

HP pumps and compressors

HP reactors and process equipment

HP autoclaves

Permanent-magnetic-coupled agitators

Bare-tube and fin-tube heat exchangers

designed as

- Multi-tube heat exchangers

- Double-pipe heat exchangers HP extraction plants

HP processing plants

HP textile dyeing plants

Laboratory and experimental installations

HP intensifiers for waterjet cutting

systems

urea service control valves

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