Soft Backrest Copper Disc Wafer Butterfly Valve

Technical data

Specification：DN40-DN1200

Nominal pressure: PN10/PN16

Working temperature: -10℃～150℃

Suitable medium: Water, sewage, seawater, gas, food, oil and so on.

Standard

Design Standard: GB/T 12238-2008

Face to Face: GB/T 12221-2005

Upper Flange Standard: ISO5211

Side Flange Standard: GB9112, DIN2501, BS4504, ISO2084, ANSI125, etc

Connection Mode: Wafer Mode

Product Features: This valve mainly formed by body, disc, stem, seat and actuator device takes wafer central disc structure which is simple, compact, small in size and light in weight and convenient for transportation, assembly and disassembly. It has 90°degree quick on-off operation, minimized operating torque which is handy and energy-saving, excellent sealing performance, long service life, no leakage, well regulation performance and its flow feature tends to linear.

Sealing Performance: This valve is rubber sealed and sealing function of disc and seat is excellent in closing. Bi-directional seal performs well; torque is small; 100% no leakage can be ensured under working pressure and friction is small between disc and seat. Stem drives disc in valve and disc does 90°degree rotation. Opening and closing of disc is flexible without jam and beat; torque is small. Sealing performance of soft seat wafer butterfly is more excellent than that of hard seat wafer butterfly designed in early stage; its torque is smaller and double half stem design makes it easier to repair and disassembly