China DI SS304 PN10/16 CL150 Double Flange Butterfly Valve Factories, Exporters
Product Description
Pneumatic actuators adopt double piston structure, with high precision and effective, and stable output torque.
Body Test: The valve body test use 1.5 times pressure than standard pressure. The test should be done after installation, the valve disc is half close, called body pressure test. The valve seat uses 1.1 times pressure than standard pressure.
Suitable Media: Wafer and other neutral medium, working temperature from -20 to 120℃, the application of the valve can be municipal construction, wafer conservancy project, water treatment etc.
ZFA Valve strictly execute API598 standard, we do both side pressure testing for all the valve 100%, guarantee deliver 100% quality valves to our customers.
All valve body casted by precise casting body, DI, WCB, Stainless Steel and many other materials, with perfect appearance, each batch has its casting stove number, easy to trace for material protection.
The valve body adopt GB standard material, there’re total 15 processes from iron to valve body.
Our valve stem is stainless steel material, the strength of the valve stem is better after tempering, reduce the transformation possibility of valve stem.
The quality inspection from the blank to the finished product is 100% guaranteed.
The valve body made of ductile iron, ss304, WCB, SS316(L) etc., it has great mechanical performance when used in high pressure condition.
The sleeve bearing is self-lubricating type, so the friction of the stem is small so you can open and close the valve tightly.
| Size & Pressure Rating & Standard | |
|---|---|
| Size | DN40-DN4000 |
| 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), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L), Duplex Stainless Steel(2507/1.4529), Bronze, Aluminium Alloy. |
| 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 |
ZFA Valve strictly executes the API598 standard. We conduct 100% two-sided pressure testing for every valve. The valve body undergoes testing at 1.5 times the standard pressure with the disc half-closed, while the valve seat is tested at 1.1 times the standard pressure.
The valves are engineered for working temperatures between -20℃ and 120℃. They are widely used with water and neutral media across municipal construction, water treatment, and water conservancy projects.
All valve bodies are manufactured using GB standard materials through 15 precision processes. Every batch includes an identifiable casting stove number to ensure material traceability and reliability from raw material to finished product.
The valve stem is made of tempered stainless steel to maximize strength and minimize deformation. Combined with a self-lubricating sleeve bearing, friction is significantly minimized for smooth, tight shut-off performance.
We provide versatile actuation methods, including hand lever, gear box, electric actuator, and pneumatic double-piston actuators. Mounting flanges comply with ISO 5211, and connections support various international standards including PN, ANSI/CL150, JIS, and GOST.
