China Valve Manufacturer
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Concentric Butterfly Valve

We make concentric butterfly valves with EPDM, NBR, PTFE soft sealing design, we can supply wafer type, lug type and flange type butterfly valves. We also supply eccentric and triple offset design butterfly valves. The pressure can be up to 10.0MPa (Class 600#) for hard sealing design. Butterfly valves can come in three body types, lugged, wafer or flanged. Wafer style valves are more common. They are typically installed between two flanges using bolts or studs and nuts. Lug style valves are also installed between two flanges but with a separate set of bolts for each flange. The lugged style setup makes it possible to remove one side of the piping while the other remains intact.
Specification
Structre type: Concentric type butterfly valve
Design standard: API609, BS5155
flange dimension: ANSI B 16.5
Face to Face: ANSI B 16.10-1992
Pressure test: API 598-82
Size:  2"-80"
 
Application
Three eccentric configuration, hermetic capability reliably,which ensure disc never touch sealing seat when it start, solve the problem of hermetical seat burden unequally,prolong service life, and ensure reliable hermetic capability with advantage of high temperature resistant, wearable,antisepsis etc.

Materials
Body
Cast Iron, Ductile Iron, WCB,LCB,LCC,CF8,CF8M,CF3,CF3M
Disc
Cast Iron, Ductile Iron, WCB,LCB,LCC,CF8,CF8M,CF3,CF3M
Stem
416,304,316,13Cr,1Cr18Ni9Ti,Monel
Seal ring
Fluorine plastic(PTFE),EPDM,NBR
Packing
Flexible graphite,fluorine plastic
 

Products List

Ball Valve
◆ Cast Steel Floating Ball Valve
◆ Forged Steel Floating Ball Valve
◆ Cast Steel Trunnion Ball Valve
◆ Forged Steel Trunnion Ball Valve
◆ Welded Structure Ball Valve
◆ Top Entry Ball Valve

Butterfly Valve
◆ Concentric Type Butterfly Valve
◆ Double Eccentric Butterfly Valve
◆ Triple Offset Butterfly Valve
◆ High Performance Butterfly Valve
◆ AWWA C504 Butterfly Valve
◆ Electric Butterfly Valve 
◆ Pneumatic Butterfly Valve
◆ High Pressure Butterfly Valve  

Gate Valve
◆ Cast Steel Gate Valve
◆ Pressure Seal Gate Valve
◆ Throught Conduit Gate Valve
◆ Forged Steel Gate Valve

Globe Valve
◆ Cast Steel Globe Valve
◆ Pressure Seal Globe Valve
◆ Forged Steel Globe Valve

Check Valve
◆ Cast Steel Swing Check Valve
◆ Pressure Seal Check Valve
◆ Dual Plate Wafer Check Valve
◆ Forged Steel Check Valve

Plug Valve
◆ Sleeve Soft Sealing Plug Valve
◆ Inverted Pressure Balance Lubricated Plug Valve

◆ Steel Strainer

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China Valve Manufacturer - www.chinavalve.info
Address: Sanqiao Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province, China. Zip Code: 325102
Tel: +86-577-67279881 Fax: +86-577-67279880 Email: sales@welcovalve.com
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