Wafer Butterfly Valve Bare Stem, Hypalon Seated
Features
Seat Type |
Replaceable Type |
Operation Cycles |
Over 100,000 times |
Leakage Level |
Bubbles-tight sealing with no leakage |
Low Torque |
Operation easy and flexible |
Bidirectional Sealing |
Any installation position |
Low Flow Resistance |
Improve fluid efficiency and reduce energy consumption |
Coating Grade |
Conventional and special conditions of C1-C5 & CX |
Certificates |
ISO9001, CE, WRAS, ACS |
Specifications
Design Standard |
EN 593 API 609 |
Top Flange Standard |
ISO 5211 |
End Flange Standard |
EN 1092 PN10/16, ANSI 125LB/150LB, JIS B2220 10K |
Face to Face Dimension |
API 609, EN558-1 Series 20, BS5155, DIN3202 K1 |
Testing Standard |
API 598, EN12266 |
Temperature |
-10℃~80℃ |
Body Material |
Ductile Iron |
Disc Material |
Stainless Steel, Duplex Stainless Steel, Monel |
Shaft Material |
Stainless Steel, Inconel |
Seat Materia |
Hypalon (CSM) |
Operator |
Lever, Gearbox, Pneumatic, Electric Actuator |
Dimension
When the process media includes oxidizing acids, aggressive chemicals, or ozone-rich environments, standard elastomer seats degrade rapidly—leading to leakage, downtime, and premature valve failure. Engineered specifically for these demanding applications, this wafer butterfly valve features a seat molded from Hypalon® (CSM) —a synthetic rubber renowned for its exceptional resistance to oxidizing chemicals, ozone, UV exposure, and extreme temperatures.
KEFA VALVE manufactures butterfly valve with hypalon rubber seal for service conditions where EPDM, NBR, or even Viton may fall short. Hypalon's unique chemical structure provides outstanding stability in contact with chromic acid, nitric acid, sodium hypochlorite, and other aggressive oxidizing agents, while maintaining flexibility and sealing integrity across a wide temperature range.