OEM PN16 DN80 CF8 Double-Shaft Disc Design Wafer Butterfly Valve Manufacturers, Factories
Product Description
The EPDM seat can be removed and replaced without replacing the entire valve, helping reduce maintenance costs and downtime.
The CF8 disc provides good corrosion resistance and mechanical strength for water and general industrial services.
The resilient EPDM seat provides tight shut-off and helps maintain sealing performance through repeated operation.
The concentric butterfly valve design minimizes friction between the disc and seat, supporting smooth operation and efficient actuator sizing.
Suitable for manual operation with a lever or gearbox, as well as pneumatic or electric actuators for automated systems.
The replaceable-seat construction simplifies maintenance and allows the sealing component to be renewed when required.
The disc is securely connected to the upper and lower shafts, providing stable disc support and reliable torque transmission during valve operation.
Disc features protrusions at the top and bottom to accommodate the valve stem, while the central section is flat, thereby reducing head loss.
| Size & Pressure Rating & Standard | |
|---|---|
| Size | DN40-DN1200 |
| Pressure Rating | PN10, PN16, CL150, JIS 5K, JIS 10K |
| Face to Face STD | API609, BS5155, DIN3202, ISO5752 |
| Connection STD | PN6, PN10, PN16, PN25, 150LB, JIS5K, 10K, 16K, GOST33259 |
| Upper Flange STD | ISO 5211 |
| Material | |
| Body | Cast Iron(GG25), Ductile Iron(GGG40/50) |
| Disc | DI+Ni, Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L), Duplex Stainless Steel(2507/1.4529), Bronze, DI/WCB/SS coated with Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA |
| Stem/Shaft | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel |
| Seat | NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA |
| Bushing | PTFE, Bronze |
| O Ring | NBR, EPDM, FKM |
| Actuator | Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator |
