Trunnion Mounted Ball Valves

Comparison - BALL Vs TMBV

Floating Ball Valves Trunnion Mounted Ball Valves

Seats are fixed Seats float in the flow axis

Ball is not rigidly held on its

rotational axis

Ball is rigidly held on its rotational

axis with the support of upper and

lower trunnions

Downstream sealing Upstream sealing

Used for process and utility

application

Used also for cross country

pipelines and other buried service

application

Trunnion mounted design

Ball held in fixed axial position with trunnion support

Upstream and downstream seats are spring- loaded

Seat rings allowed to float in flow axis

• Line pressure assists in pressing spring- loaded upstream seat against the

ball

Upstream sealing

Construction

Bearing Block

Seat Ring

Body End Connector

Body

Ball

Trunnion Bearing Block

Stem housingStem

Gear Unit

Support Lugs

Terminology of Three Piece TMBV

Construction Two Piece

Aspects covered …

Product range

Variants

Standards

Construction

Features

Materials

Actuation

Special designs

Design validation / testing

Certifications

Applications & end-users

Range

Construction - Standards

• API 6D• ASME B16.34Valve Design

• API 6DFace-to-Face

• ASME B16.34Wall thickness

• ASME B16.25Butt-weld ends

• ASME B16.5• ASME B16.47Flange Dimensions

• ASME Sec VIIIBody to Connector Bolting

• ISO 5211Mounting Flange

Construction - Variants

Bore

Full Bore

Reduced Bore

Body Construction

2-piece (Cast)

3-piece (Cast/Forged)

Interface Joint

Bolted

Welded

Seat Design

Primary Metal (Secondary

Soft)

Soft Seat

Fully Metal Seat

Seat DesignsSoft seat design Primary Metal seat design

With disc springs

With coil springs

Construction - Body Materials

Carbon / Low carbon steels

• WCB• LCB• LCC• A105• LF2

Stainless Steels

• CF8M• CF3M• F316• F316L

Duplex Stainless Steels

• 4A• F51

Super Duplex Stainless Steels

• 5A• 6A• F53• F55

Inconel

• 625• 825

Hastelloy

• B• C• C276

Sealant Injection System

Fire safe

Double block and

bleedAutomatic Automatic

cavity relief

system

Blowout proof Stem

Vent / Drain

Connection

Anti-static

Standard Features

Double Block and Bleed

Capability of valve under pressure to• Obtain seal across both upstream and downstream

seats

• Have body cavity bled down to atmosphere

Enables online affirmation of proper seat

sealing

Springs on upstream and downstream side

push seat against ball for effective sealing

Independent spring loaded upstream and

downstream seating surfaces

In closed condition - valve cavity is evacuated

by vent and drain connection

VENT

DRAIN

15

Single piston effect-concept/Self- Relief

Body cavity

Body cavity with normal pressure

Body cavity with more pressure than 1.33 times line pressure due to thermal expansion

Upstream seat Upstream seat (relieved)

Pr. Relieving to upstream

Fire safe

Conformance to API 6FA

API 607 Specifications

Blowout proof Stem

Bottom-entry/Top entry stem design

Integral shoulder on stem butts against a

shoulder in the body/stem housing,

facilitating blow-out proof integrity

Line pressure Tighter seal

Online replacement of gland packing is

possible

Anti-static

Build up of static electricity as a result of

constant rubbing of ball against soft seat

• Potential fire hazard

To provide electrical continuity, spring-

loaded plungers provided between stem

and ball

Vent and Drain Connection

Vent and drain connections provided for

venting and draining of valve cavity• NPT-threaded plugs with bleed facility

Drain is also used to check on-line

affirmation of valve sealing

To ensure valve sealing• Valve is pressurised from both sides

• Drain is opened to check leakage

20

Sealant injection

Emergency Sealing Arrangement

Optional supplies

Fully-welded Body design

Body and Body connector welded at the

interface after valve is fully assembled

Suited forBuried service applications

Other applications where leakage is strictly non-

permissible

Special DesignsFusion Bonded Epoxy (FBE) coating on body internals

Extended Stem Arrangement

Our trunnion mounted ball valves can be supplied

with stem extension arrangement

Application

• Buried services

• Other services where valve operation is at

considerable depth or height

Where applicable, vent/drain and sealant injection

connections are brought up close to operator

Pressure-containing part is integral to the body

Pup Pipe / Transition Pipe

Pup pieces can be welded in TMBV for ease of

valve erection at site

Results in minimal heat transfer to internal parts

of valve

Emergency Shutdown ValvesActuated by Gas / Pneumatic actuators

Quick acting valves

Special DesignsDouble Piston Seat Design

Flow direction Seat ring moves in Flow direction Seat ring

moves in

– In double piston design - cavity pressure aids the sealing in upstream and downstream seat housings

– In case of passing across upstream seat after prolonged usage, the downstream seat still provides sealing.

Varities

Construction - Actuation

Electric Actuator

28” Cl.150 with electric actuator

Gas-over-oil Actuator

24” & 30” Cl.600 with gas-over-oil

actuator

Hydraulic Actuator

18” Cl.600 with hydraulic actuators

Actuated Valves

24” Class 600 TMBV with gas-over-oil actuator

12” & 24” Class 600 TMBV with gas-over-oil actuators

Actuated Valves

28” Cl.150 with electric actuator

30” Cl.600 with extended stem and gas-over-oil actuators

24” & 30” Cl.600 with gas-over-oil actuators

18” Cl.600 with hydraulic actuators

Large Size Valves

42” Class 600 for EIL qualification

42” x 36” Class 150

BORL – Bina VadinarPipeline

48” Class 150

HPCL SPM Project

High Pressure Valves

28” Class 900

ONGC Platform

16” Class 1500

ONGC 4-Wells

(Duplex SS body)

Manufacturing Initiatives

Manufacturing Initiatives

CNC Horizontal Boring Machine (HBM) - Trevisan

• One setting – many operations• High dimensional & geometric accuracy• Enhanced reliability and performance

Manufacturing Initiatives

Ball Turning & Grinding Machine

Special purpose machine for ball grinding

• Improved Sphericity• Uniform Surface Finish• Enhanced reliability and performance

Portable CMMs available in all manufacturing plants

Time reduction in measurements

High level of Geometry & Dimensional Accuracy

Data can be stored & retrieved from the PC

FARO CMM

Manufacturing Initiatives

Qualification/Certification

CertificationsAPI monogram

CE marking under Pressure Equipment Directive (PED) – 97/23/EC

ATEX marking

SIL CertificationAs per IEC 61508SIL 3 Capable

CertificationsFugitive emission qualification

ISO 15848 – 1Ta Luft

Design Validation

Vacuum testing Fugitive Emission testing

Flow Test

Design Validation

12” Class 600 TMBV

Pipe Bending Test Axial Loading Test

Cycle Test

Site Installations

Location: GAIL, Lucknow

Site Installations

Valve Details: 8” Class 600Application Details:

Line Pressure 0 to 91.9 bar

Location: Cairn India, Salaya-Bhogat Pipeline

Site Installations

Valve Details: 8” Class 600Bhogat terminal in Jamnagar district

Application Details:Line Fluid - Crude

Location: MVPL

Site Installations

Valve Details: 10” and 30” Class 600

Location: Elster-Instromet India Pvt. Ltd

Site Installations

Valve Details: 10” Class 300Installed in Metering Skid

Location: HPCL Vizag SPM

Site Installations

Valve Details: 48” Class 150

Location: E&C, Kona

Site Installations

Valve Details: 10” Class 300Line fluid: Fuel Gas

ApplicationsIn the Oil & Gas Industry

Transportation PipelinesRefinery Process LinesOffshore PlatformsManifolds/Metering Stations

Major Domestic Customers

● Oil & Natural Gas Commission

● Gas Authority of India● Gujarat Gas● Gujarat State Petronet Ltd.● IOCL/HPCL/BPCL● Reliance Industries● BG Exploration● Essar Refinery● Petronet LNG● SA LPG

Major Intl. Customers

● Saudi Aramco● PDO, Oman● Qatar Petroleum● Kuwait Oil Company● Takreer IRP● Gasco● Alderley FZE,Dubai● Songas , Tanzania

Supplies to offshore platforms

Major End users & EPCs

THANK YOU