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China PN25 DN125 CF8 Wafer Butterfly Valve with Soft Seat Manufacturer, Manufacturers
Product Description
Key Features & Advantages
Dual-shaft Design
Dual half-shafts - split shaft or pinless shaft design reduces the risk of leakage.
Pressure Rating (PN25)
Generally speaking, the maximum pressure rating of soft seats is PN16, but our ZFAvalve can achieve PN25.
Material (CF8)
The valve body and disc are made of CF8 (304 stainless steel), which has excellent corrosion resistance and is suitable for general industrial environments.
EPDM Soft Seat
Ensures tight shut-off of bidirectional flow to prevent leakage. The soft seat design can be easily replaced without special tools, thereby improving maintenance efficiency.
Actuator Options
Compatible with manual (lever, gearbox), pneumatic or electric actuators, with an installation mode that complies with ISO 5211 standards, which is easy to automate.
Application
Suitable for the following industries:
- Water and wastewater treatment
- Petrochemical and oil and gas industries
- HVAC systems
- General industrial fluid control
Compatible with media such as water, oil, air and mild chemicals, depending on the seat material.
Technical Specifications
| 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 |
Product Gallery
Frequently Asked Questions
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.
What is a Worm Gear Operated CF8 Disc Double Stem Wafer Butterfly Valve?
A worm gear operated CF8 disc double stem wafer butterfly valve is a type of industrial valve that is used to control the flow of a fluid through a pipeline. It is operated by a worm gear mechanism and features a CF8 disc with double stems for added strength and stability.
