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Flowserve TX2

Triple Offset High Performance Butterfly Valve

Designed for Heavy Duty Industrial Applications

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In many applications, double offset metal-seated butterfly valves cannot offer bubble tight shut-off. For these applications, Flowserve is now introducing triple offset metal seated valves. They feature a special sealing mechanism, which consists of contacts of an inclined and conical disc with laminated seat. As a result, the friction and abrasion between the sealing elements (disc and seat) are minimized. The unique feature of this design is that it provides low torque, broad sealing and tight shut-off.

Triple Offset Metal Seated Valves About Triple Offset Valve Technology Single offset

The rotation axis of the disc is moved back from the sealing surfaces of the disc. The purpose of this offset is to have a continuous sealing surface on the disc.

Double offsetThe rotation axis of the disc is moved away from the center-line of the valve body. The purpose of this offset is to lift the disc quickly off and away from the seat ring in the body while decreasing the friction during operation

Triple offsetThe virtual conic axis, extended from the sealing

surfaces of the disc is inclined from the rotation axis of the disc. The purpose

of this offset is to eliminate friction, galling and wear generated at

the sealing surface during operation and provide

bubble tight shut-off even at high pressure

and temperature.

Preferred direction of flow

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Flowserve TX2 Valves

Features

• Flowserve's triple-offset butterfly valve with laminated and metal seat designs • Life cycles up to 50 000 cycles without jamming or packing adjustment

• Fire-safe test to API 607, ISO 10497

• Cryogenic test to BS 6364

• Emission test to ISO 15848

• Robust single-piece shaft

• Vacuum rated to 720 torr

Applications• Chemical and petrochemical industry

• Fossil and cogeneration power

• Steel mill

• Refinery

• LNG and cryogenic

• Pulp and paper

• Nuclear power

Features and Applications

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Sealing system

Principle of Sealing SystemTX2 Triple offset valves operate by using a cam action which reduces the possibility of galling or scratching on the sealing surfaces between the sealing elements (disc and seat). The camming action of these valves also reduces the possibility of jamming between the sealing elements, which can occur with valves that rely on single point sealing.

• The Flowserve TX2 valve has an elliptical sealing system. The sealing surfaces of the valve disc have different angles at all points

• The sealing surfaces of an elliptical sealing system are completely in contact at the final position only. Upon opening, all contact points are released immediately from the seat ring.

• This mechanism provides flawless bubble tight shut-off.

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• Duplex stainless steel UNS 32205 is used as our standard material for the disc seal ring, both for the laminated seats and for the solid metal seats.

• The TX2 offers shutoff to ANSI/FCI 70-2 Class VI for the laminated seats and Class V for the solid metal seats.

• The standard body seat is built with a Stellite #21 hard face overlay which provides the seat with long service life. Other hard face overlay materials are available on customer request. In order to allow for future maintenance and repair, the body seats of valves Class 300 and above are separable.

• The seat is positioned on the disc in order to to allow for easy repair

• The pressure of the fluid reacts on the surface of the disc (blue arrows) and forces the laminated seat to be compressed onto the body seat. The reacting force of the body seat (yellow arrows) forces the disc seal ring to be formed into an elliptical shape and to fully contact the body seat. The compression forces are equally distributed around the perimeter to provide a tight shut-off. The disc seal ring (pink arrows) is self-adjusting in that it can flex to provide continuous sealing.

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One-piece shaft design24 inch valves and smaller feature a sturdy one-piece shaft design. The shaft’s surface finish exceeds Ra 0.4 and the bore within the body exceeds Ra 1.25. The surface of the shaft is hard chrome plated to allow the valve to pass the low VOC emission test and to provide abrasion resistance for high cycle duty.

Dust proof designA seal prevents the ingress of foreign material into the shaft area.

Large dimension supportThe shaft is supported by two long large dimension, nitride and chrome plated bushings, which are suitable for a wide pressure range and for temperatures from -321 to +1400 °F (-196 to +760 °C)

Blow-out protectionThe thrust ring offers reliable blowout protection. The thrust ring is also electrically conductive to eliminate the build-up of static electricity

Lower Shaft

Design features

Thrust ring

Graphite gasket

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Valve connectionsAll Flowserve TX2 valves mounting dimensions are in accordance with ISO 5211. The face-to-face dimensions of our valves are in accordance with ISO 5752 and/or API 609.

Flange connections are in accordance with:

ASME B16.5 Class 150/300/600ASME B16.47 Class 150/300/600

Other flange connections are available upon demand

Yoke with ISO mounting flangeBody mounting flange

ISO shaft output

Notch to indicate disc position

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Packing configurations

Our standard packing material is composite graphite. The upper and lower rings are graphite with stainless steel fibers woven with graphite in order to form a more rigid structure. The central rings are pure graphite which will be more resillient. Chevron packing in PTFE is available for services below 200 °C (400 °F).

The packing can be provided with live-loading for applications having high cycles or for strict emission control.

Double packing with lantern ring is also available.

Standard gland packing

Double sealing with lantern ring

Purge port

Combined gland packing

Live-loading

Double gland packing design

Lantern ring (optional)

We can offer special grades of graphite packing material that allow us to meet the requirements of ISO 15848-1 as verified by the Metal Industries Research & Development Centre

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Flowserve TX2 Automated Valve Systems

Flowserve offers a comprehensive range of Automax, Norbro, Worcester and Limitorque actuators and instru-mentation to allow us to supply complete automated on-off or modulating packages to meet customer requirements.

ActuatorsFor pneumatic and hydraulic applications for the Flowserve TX2 valve we are pleased to offer the Automax RG-Series Scotch Yoke actuators that provide torque outputs up to 2.2 million in-lbs which can handle the full torque requirements of the TX2 range of valves. The RG actuators achieve superior performance by using a superior yoke support system that significantly reduces transverse loads. The RG actuators feature modular construction which allows convenient interchangeability and maximizes flexibility in the field including• Double acting or spring return (FCW or FCCW)

modules• Pneumatic or hydraulic pressure modules• Torque module with symmetrical or canted yokes• Override options - direct drive jackscrew, bevel

gear jackscrew, hydraulic override or declutchable sandwich gear override.

InstrumentationFrom actuators to positioners, limit switches to solenoid valves, Flowserve is recognized world-wide as a leader in the development and manu-facture of valve automation systems and equip-ment. Backed by Flowserve’s global resources of R&D, technical support, world-class manufac-turing and distribution network, we will continue to lead the industry in automation products and systems including:

• Digital network communication• Superior diagnostics• Intelligent valve controllers • Comprehensive user-friendly sizing and

selection software • Dedicated technical and engineering design

support

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Flowserve TX2 Specialized Configurations

Flowserve TX2 Cryogenic Butterfly Valves

Flowserve TX2 cryogenic butterfly valves are engi-neered and fully tested for services down to -196° C (-320° F)

Sizes: 80 mm (3 in) - 900 mm (36 in)

Pressure Rating:

ANSI Class 150 / 300 / 600

End Connection: Lugged, double flanged

Design and Testing Specificationsfor cryogenic valves:

ASME B16.34 BS 6364 MSS SP-55 MSS SP-25 API 598 ISO 5208

Flowserve TX2 valves are offered in a variety of specialized configurations including cryogenic and jacketed valves

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Note: The Smart Code shall use the Imperial units. For example: 8-TX2-L-6-A-1-1-1-A-N-1shall designate a: • 8" (200mm) (8) • TX2 triple offset butterfly valve (TX2) • lug style (L) • ASME Class 600 (6)• WCC body (A) • CF8M disc (1) • shaft in 17-4 PH (1) • single PTFE shaft seal (1) • laminated 304 SS & Graphite seat (A) • Stellite #21 disc coating (N) • enclosed gear (1).* For valves larger than 48" please contact factory.** For 316 SS shaft, Cl. 150 valve is de-rated to 150 psi, Cl. 300 valve to 300 psi, Cl. 600 to 600 psi, Cl. 900 valve to 900 psi.*** For ASME Cl. 1500 please contact the factory

General Ordering Information

Valve size* inch (mm)3 (80)4 (100)6 (150)8 (200)10 (250)12 (300)14 (350)16 (400)18 (450)20 (500)24 (600)26 (650)28 (700)30 (750)32 (800)34 (850)36 (900)40 (1000)44 (1100)48 (1200)

TypeTX2 StandardTX2C Cryogenic

End ConnectionF Flange (short)G Flange (long)L LugW Wafer

Pressure Class ***1 ASME CI 1503 ASME CI 3006 ASME CI 6009 ASME CI 900

OptionsN NACE MRO 175O O2 cleanedC Cl2 cleaned

Operator1 Enclosed gear9 Bare stem

Body Seat SurfaceB 316SS / Stellite #21N Stellite #21X NoneC A240 Gr 316M Super Duplex SST Ti2 + Ti5D 13 Cr

Disc SeatA Lam. 304 SS & GraphiteB Lam. 304L SS & GraphiteC Lam. 316 SS & GraphiteD Lam. 316L SS & GraphiteE Lam. 317 SS & GraphiteF Lam. 317L SS & GraphiteW Laminated Inconel & GraphiteH Lam. Duplex UNS 32205 & GraphiteS Lam. Super Duplex UNS 2507 & GraphiteJ Lam. Monel & GraphiteK Lam. Hastalloy & GraphiteP Lam. Alloy 20 & Graphite9 304 SSQ 304L SS1 A240 Gr. 316 SSL 316L SSR 317 SSV 317L SSN InconelY Duplex SS 2205M Super Duplex SS 22053 Monel6 Hastelloy2 Alloy 20U A182 Gr. F6a

Shaft Seal1 Single PTFE2 Double PTFE3 Live-loaded single PTFE4 Live-loaded double PTFE5 Single composite graphite6 Double composite graphite7 Single composite graphite live-loaded8 Double composite graphite live-loaded

Body Material Disc Material Shaft Material8 A216 Gr. WCB 8 WCB 1 17-4 PHA WCC A WCC N InconelH LCB H LCB F Duplex SS 2205C LCC C LCC M Super Duplex SS 2507E LC9 E LC9 3 MonelF CA15 F CA15 S 316 (de-rated)**K WC6 K WC6 6 Hastalloy C9 CF8 9 CF8 2 Alloy 20Q CF3 Q CF3 R Nitronic 501 A351 Gr. CF8M (316SS) 1 CF8M 7 TitaniumL CF3M L CF3M Q 316 TiG CG8M G CG8M Z A 182 Gr F6aJ CG3M J CG3MN Inconel N InconelO Duplex SS CD4MCuN O Duplex SS CD4MCuNM Super Dupl. SS CE3MN M Super Dupl. SS CE3MN3 Monel 3 Monel6 Hastelloy C 6 Hastelloy C2 Alloy 20 2 Alloy 207 Titanium 1 TitaniumQ 316 Ti Q 316 Ti

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Sizein

Wafer Lugged Double Flange short Double Flange longClass Class Class Class

150 300 600 900 150 300 600 900 150 300 600 900 150 300 600

3 • • • • • • • • • •4 • • • • • • • • • • • • •6 • • • • • • • • • • • • •8 • • • • • • • • • • • • • •

10 • • • • • • • • • • • • • •12 • • • • • • • • • • • • • •14 • • • • • • • • • • • • • •16 • • • • • • • • • • • • • •18 • • • • • • • • • • • • • •20 • • • • • • • • • • • • • •24 • • • • • • • • • • • • • •28 • • • • • • • •30 • • • • • • • •32 • • • • • • • •36 • • • • • • • •42 • • • •48 • • • •

Product Portfolio

• For size range of valves built to gate valve face-to-face dimensions, please contact factory.

• For cryogenic valve size range please contact factory.• For valves larger than 48" please contact factory.• For class 1500 valves please contact factory.

Pressure Rating ANSI 150 / 300 / 600 / 900End Connection Wafer / Lugged / Flanged

Applicable Standards

ASME B16.34 (Design)API 607 / ISO 10497 (Fire Safe Approval)BS 6364 (Cryogenic)API 598 (Pressure Test)VOC:ANSI/ISA-SP-93, TA LUFT, ISO 15848-1/ -2Standard Marking system:MSS-SP-25EX certificate: ATEXISO 5208 (Pressure Test)ISO 5211 (Mounting Flange)ANSI FCI 70-2 (Seat Leakage)

Face to Face Design

Wafer Type(Not available for Cryogenic Service)

Class 15024"↓: API 609 Category B Lug and Wafer Type Class 15026"↑: ISO 5752 Table 5 short

Class 30024"↓: API 609 Category B Lug and Wafer Type Class 30026"↑: ISO 5752 Table 5 long

Class 600 API 609 Category B Lug and Wafer Type Class 600

Lugged Type

Class 15024"↓: API 609 Category B Lug and Wafer Type

26"↑: ISO 5752 Table 5 short

Class 30024"↓: API 609 Category B Lug and Wafer Type Class 30026"↑: ISO 5752 Table 5 long

Class 600 API 609 Category B Lug and Wafer Type Class 600

Flanged Type

Class 150short 48"↓: API 609 Category B Double Flanged (Short Pattern) Class 150clong 54"↓: API 609 Category B Double Flanged (Short Pattern) Class 300d

Class 300short API 609 Category B Double Flanged (Short Pattern) Class 300elong API 609 Category B Double Flanged (Short Pattern) Class 300d

Class 600short API 609 Category B Double Flanged (Short Pattern) Class 600flong 24"↓: ISO 5752 Table 1 COL.19

Valve Standards

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Flowserve CorporationFlow Control1978 Foreman DriveCookeville, Tennessee 38501Phone: +931 432 4021Fax: +931 432 3105www.flowserve.com

Flowserve Ahaus GmbHVon Braun Straße 19aD-48683 AhausGermanyPhone: +49 2561 686-0Fax: +49 2561 686-39

Flowserve Pte. Ltd.12 Tuas Avenue 20Republic of Singapore 638824Phone: +65 6879 8900Fax: +65 6862 4940

Flowserve Australia Pty. Ltd.14 Dalmore DriveScoresby, Victoria3179, Australia Phone: +613-97593300

Flowserve Corporation Beijing OfficeRoom 22A1&A2,HanWei PlazaNo.7 GuangHua Road, Chaoyang DistrictBeijing, China 100004Tel: +86-10-59210600, +86-10-59210601Fax: +86-10-65611899

To find your local Flowserve representative, visit www.flowserve.com or call USA 1 800 251 6761

FCD FCENBR0015-00 07/12 Printed in USA.

Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection with the specific application.

While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices.

© 2012 Flowserve Corporation, Irving, Texas, USA. Flowserve is a registered trademark of Flowserve Corporation.

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