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China Hard Back Seat Earless Wafer Butterfly Valve with Handlever Factories, Exporters
Product Description
Earless Wafer Design:
Lacks lugs or ears, allowing installation between flanges (e.g., PN10, PN16, ANSI 150) using long bolts, reducing weight and cost.
Pressure Rating:
Handles PN10/PN16 (10–16 bar) or ANSI 150, ideal for moderate-pressure systems.
Temperature Range:
Operates from -20°C to +120°C (EPDM) or up to +80°C (NBR), depending on seat material.
Handlever Operation:
Manual lever with 0°–90° rotation, featuring multi-position stops (e.g., zfa 10 positions) for precise flow control.
Standards Compliance:
Conforms to ISO 5752, EN 593, or API 609 for face-to-face dimensions and flange compatibility.
Low Torque:
Streamlined disc design reduces operating torque, easing manual operation.
Bidirectional Sealing:
Provides tight shut-off in both flow directions.
Applications:
Suitable for water (potable, raw, sewage), HVAC, light industrial processes, maritime systems, and fire protection.
| 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 |
Are you a Factory or Trading?
We’re a factory with 17 years production experience, OEM for some customers around the world.
What is your After-sales service term?
18 months for all our products.
Do you accept custom design on size?
Yes.
What's your terms of payment?
T/T, L/C.
What is your transportation method?
By sea, by air mainly, we also accept express delivery.
