Flowserve TX2 Triple Offset High Performance Butterfly Valve Designed for Heavy Duty Industrial Applications
Triple Offset Metal Seated Valves About Triple Offset Valve Technology 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. 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 offset The 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 offset The 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 2
flowserve.com Flowserve TX2 Valves Features and Applications 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 3
Sealing system Principle of Sealing System TX2 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 shutoff. 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. 4
flowserve.com Design features Lower Shaft One-piece shaft design 24 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 design A seal prevents the ingress of foreign material into the shaft area. Thrust ring Graphite gasket Large dimension support The 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 protection The thrust ring offers reliable blowout protection. The thrust ring is also electrically conductive to eliminate the build-up of static electricity 5
Valve connections All Flowserve TX2 valves mounting dimensions are in accordance with ISO 5211. The face-toface dimensions of our valves are in accordance with ISO 5752 and/or API 609. Notch to indicate disc position ISO shaft output Body mounting flange Yoke with ISO mounting flange Flange connections are in accordance with: ASME B16.5 Class 150/300/600 ASME B16.47 Class 150/300/600 Other flange connections are available upon demand 6
flowserve.com Packing configurations Standard gland packing 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). Double sealing with lantern ring 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. 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 Live-loading Combined gland packing Double gland packing design Purge port Lantern ring (optional) 7
Flowserve TX2 Automated Valve Systems Flowserve offers a comprehensive range of Automax, Norbro, Worcester and Limitorque actuators and instrumentation to allow us to supply complete automated on-off or modulating packages to meet customer requirements. Actuators For 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. Instrumentation From actuators to positioners, limit switches to solenoid valves, Flowserve is recognized worldwide as a leader in the development and manufacture of valve automation systems and equipment. Backed by Flowserve s global resources of R&D, technical support, world-class manufacturing 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 8
flowserve.com Flowserve TX2 Specialized Configurations Flowserve TX2 valves are offered in a variety of specialized configurations including cryogenic and jacketed valves Flowserve TX2 Cryogenic Butterfly Valves Flowserve TX2 cryogenic butterfly valves are engineered 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 Specifications for cryogenic valves: ASME B16.34 BS 6364 MSS SP-55 MSS SP-25 API 598 ISO 5208 9
General Ordering Information 10 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) Type TX2 Standard TX2C Cryogenic End Connection F Flange (short) G Flange (long) L Lug W Wafer Pressure Class *** 1 ASME CI 150 3 ASME CI 300 6 ASME CI 600 9 ASME CI 900 Body Material Disc Material Shaft Material 8 A216 Gr. WCB 8 WCB 1 17-4 PH A WCC A WCC N Inconel H LCB H LCB F Duplex SS 2205 C LCC C LCC M Super Duplex SS 2507 E LC9 E LC9 3 Monel F CA15 F CA15 S 316 (de-rated)** K WC6 K WC6 6 Hastalloy C 9 CF8 9 CF8 2 Alloy 20 Q CF3 Q CF3 R Nitronic 50 1 A351 Gr. CF8M (316SS) 1 CF8M 7 Titanium L CF3M L CF3M Q 316 Ti G CG8M G CG8M Z A 182 Gr F6a J CG3M J CG3M N Inconel N Inconel O Duplex SS CD4MCuN O Duplex SS CD4MCuN Valve Size Type M Super Dupl. SS CE3MN M Super Dupl. SS CE3MN 3 Monel 3 Monel 6 Hastelloy C 6 Hastelloy C 2 Alloy 20 2 Alloy 20 7 Titanium 1 Titanium Q 316 Ti Q 316 Ti End Connection Pressure Class Materials Shaft seal Disc Seat Body Seat Surface - - - - - - - Operator Options N NACE MRO 175 O O 2 cleaned C Cl 2 cleaned Operator 1 Enclosed gear 9 Bare stem Body Seat Surface B 316SS / Stellite #21 N Stellite #21 X None C A240 Gr 316 M Super Duplex SS T Ti2 + Ti5 D 13 Cr Disc Seat A Lam. 304 SS & Graphite B Lam. 304L SS & Graphite C Lam. 316 SS & Graphite D Lam. 316L SS & Graphite E Lam. 317 SS & Graphite F Lam. 317L SS & Graphite W Laminated Inconel & Graphite H Lam. Duplex UNS 32205 & Graphite S Lam. Super Duplex UNS 2507 & Graphite J Lam. Monel & Graphite K Lam. Hastalloy & Graphite P Lam. Alloy 20 & Graphite 9 304 SS Q 304L SS 1 A240 Gr. 316 SS L 316L SS R 317 SS V 317L SS N Inconel Y Duplex SS 2205 M Super Duplex SS 2205 3 Monel 6 Hastelloy 2 Alloy 20 U A182 Gr. F6a Shaft Seal 1 Single PTFE 2 Double PTFE 3 Live-loaded single PTFE 4 Live-loaded double PTFE 5 Single composite graphite 6 Double composite graphite 7 Single composite graphite live-loaded 8 Double composite graphite live-loaded Note: The Smart Code shall use the Imperial units. For example: 8-TX2-L-6-A-1-1-1-A-N-1 shall 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 Options
flowserve.com Product Portfolio Size in Wafer Lugged Double Flange short Double Flange long Class 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 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. Valve Standards Pressure Rating ANSI 150 / 300 / 600 / 900 End Connection Wafer / Lugged / Flanged 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/ -2 Applicable Standards Standard Marking system:mss-sp-25 EX certificate: ATEX ISO 5208 (Pressure Test) ISO 5211 (Mounting Flange) ANSI FCI 70-2 (Seat Leakage) Face to Face Design Wafer Type (Not available for Cryogenic Service) Lugged Type Flanged Type Class 150 24" : API 609 Category B Lug and Wafer Type Class 150 26" : ISO 5752 Table 5 short Class 300 24" : API 609 Category B Lug and Wafer Type Class 300 26" : ISO 5752 Table 5 long Class 600 API 609 Category B Lug and Wafer Type Class 600 Class 150 24" : API 609 Category B Lug and Wafer Type 26" : ISO 5752 Table 5 short Class 300 24" : API 609 Category B Lug and Wafer Type Class 300 26" : ISO 5752 Table 5 long Class 600 API 609 Category B Lug and Wafer Type Class 600 Class 150 short 48" : API 609 Category B Double Flanged (Short Pattern) Class 150c long 54" : API 609 Category B Double Flanged (Short Pattern) Class 300d Class 300 short API 609 Category B Double Flanged (Short Pattern) Class 300e long API 609 Category B Double Flanged (Short Pattern) Class 300d Class 600 short API 609 Category B Double Flanged (Short Pattern) Class 600f long 24" : ISO 5752 Table 1 COL.19 11
FCD FCENBR0015-00 07/12 Printed in USA. Flowserve Corporation Flow Control 1978 Foreman Drive Cookeville, Tennessee 38501 Phone: +931 432 4021 Fax: +931 432 3105 www.flowserve.com Flowserve Ahaus GmbH Von Braun Straße 19a D-48683 Ahaus Germany Phone: +49 2561 686-0 Fax: +49 2561 686-39 Flowserve Pte. Ltd. 12 Tuas Avenue 20 Republic of Singapore 638824 Phone: +65 6879 8900 Fax: +65 6862 4940 Flowserve Australia Pty. Ltd. 14 Dalmore Drive Scoresby, Victoria 3179, Australia Phone: +613-97593300 To find your local Flowserve representative, visit www.flowserve.com or call USA 1 800 251 6761 Flowserve Corporation Beijing Office Room 22A1&A2,HanWei Plaza No.7 GuangHua Road, Chaoyang District Beijing, China 100004 Tel: +86-10-59210600, +86-10-59210601 Fax: +86-10-65611899 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. 12 2012 Flowserve Corporation, Irving, Texas, USA. Flowserve is a registered trademark of Flowserve Corporation.