Concentric Butterfly Valves

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▶ General Rubber Seat Valve

This is the most common and simple design. On a centric (concentric) butterfly valve the stem is centered in the middle of the disc and the disc entered in the bore. It is normally resilient seated valve. They are often chosen for their affordability and efficiency in handling low-pressure applications.

Category Detail
Valve DesignAPI 609 Category A, MSS SP-67, BS EN593
RatingASME 125LB, 150LB
PN 6, 10
JIS 5K, 10K
SizeDN50(2") to DN2000(80")
Connection TypeLugged, Wafer & Flanged
Temperature Range-20℃ to 120℃
Main MaterialBody : Ductile Iron, Carbon Steel, Stainless Steel, Nickel-Aluminum Bronze etc.
Disc : Stainless Steel, Duplex Stainless Steel, Nickel-Aluminum Bronze etc.
Shaft : SUS304, SUS316, 17-4PH, F55, B150-C63000 etc.
Seat : EPDM, NBR, VITON, PTFE etc.
OperatorManual Hand Lever / Manual Worm Gear
Electric Actuator
Pneumatic Actuator
ApplicationGeneral Industrial / Petro chemical
Oil & Gas
Steel and Iron Mill
Shipbuilding
Water Treatment
Sea Water
OptionStem extension
Anti-static device
Teflon V-packing
Rubber seat type for high temperature up to 250℃
Manual operator with Locking device
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