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Center Line Butterfly Valve


Center Line Butterfly Valve


Center Line Butterfly Valves are suitable for a wide range of applications. Available in a variety of liner and disc material options, this range is suitable for operating temperatures of between –20℃ ~120℃. These valves are suitable for both gaseous and liquid service, typical applications include: industrial/chemical processing, food and beverage, power and utilities, and pulp and paper industries.

Design Feature

Concentric design
Low torque
Zero leakage
Low torque
Self cleaning
Blowout-proof stem
ISO 5211 top flange

Design Standard

Design: API 609/ SO 17292
Face to face: API609
Test: API598
Fire safe: API607/API6FA
End connection: ASME:16.5/ ASME:16.1

Technical Specification

Size: 2”~100”
Class: 150#
Connection:Double flange/wafer/lug
Operation: Manual/ Worm Gear/ Pneumatic actuator/ Electric actuator Temperature: -26°C to +200°C
Application: Pipeline/water treatment/petrochemical/power plant/papermaking

Material Option

Body: Cast iron/ductile iron
Trim: Ductile iron/Albronze/Stainless steel
Stem: 17-4PH/SS316/F316/F6a

Structural Type of Body

20170512095401 20170512095412 20170512095425 20170512095436


































Structural Explosion Diagram of Centered Seal Butterfly Valve















Materials List



1. Pressure and temperature rating of casing material referred to Appendix F
2. Chemical compositions and mechanical property of casing material referred to Appendix G
3. Trim materials and recommended service coverage referred to Appendix E

Technical Specification



Resiluent Seated Butterfly Product Line



Table of Flow Coefficient of Taper Pin Connection Disc and Total-shaft Pinless Butterfly Valves

20170512100407 20170512100600


Note: For sizes and classes not shown, please contact our Sales Depatrment

Main Outline Dimensions



Note: Dimensions for mounting flange above mentioned conform BS4504, and top mounting conform to IS05211. When requied, standards form other countries or any special requirements are also available.



Single Flange Butterfly Valve



U-Section Butterfly Valve



Product Picture

1-1611301G536 1-1611301G538 1-1611301G541 1-1611301G544


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Butterfly valve, Industrial Valves

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