China Electric WCB Vulcanized Seat Flanged Butterfly Valve Manufacturer, Exporter
Product Description
The main features of the vulcanized seat dual half-shaft flange butterfly valve:
1. Dual half-shaft design
The valve opening and closing process is more stable, reducing fluid resistance and improving flow control accuracy.
2. Vulcanized valve seat
Made of special vulcanized material, it has good wear resistance and sealing performance, ensuring long-term stable operation of the valve.
3. Flange connection
Standard flange connection is used to facilitate connection with other equipment and has a wide range of applications.
4. Various actuators
Electric actuators, but other actuator also can be selected according to user needs to meet different operating needs, such as worm gear, pneumatic, etc.
5. Scope of application
Widely used in pipeline flow control in petroleum, chemical industry, metallurgy, water treatment and other fields.
6. Sealing performance
When the valve is closed, it can ensure complete sealing and prevent fluid leakage.
7. Easy maintenance
Simple structure, easy to maintain and repair, reducing operating costs.
| Technical Specifications & Standards | |
|---|---|
| Size & Pressure Rating & Standard | |
| Size | DN40-DN1800 |
| Pressure Rating | Class125B, Class150B, Class250B |
| Face to Face STD | AWWA C504 |
| Connection STD | ANSI/AWWA A21.11/C111 Flanged ANSI Class 125 |
| Upper Flange STD | ISO 5211 |
| Material | |
| Body | Ductile Iron, WCB |
| Disc | Ductile Iron, WCB |
| Stem/Shaft | SS416, SS431 |
| Seat | NBR, EPDM |
| Bushing | PTFE, Bronze |
| O Ring | NBR, EPDM, FKM |
| Actuator | Hand Lever, Gear Box, Electric Actuator, Pneumatic Actuator |
Frequently Asked Questions (FAQ)
What are the benefits of the dual half-shaft design in this butterfly valve?
The dual half-shaft design delivers superior structural stability during operation, significantly decreases fluid resistance inside the flow channel, and enhances flow regulation precision.
Which seat materials are available for this vulcanized flange valve?
The vulcanized seat is available in premium NBR and EPDM materials, providing wear resistance, extended service life, and reliable bubble-tight sealing.
What size ranges and pressure classes does the valve support?
The valve is manufactured in sizes ranging from DN40 to DN1800, compatible with pressure ratings including Class 125B, Class 150B, and Class 250B.
What actuation methods are compatible with this butterfly valve?
Standard configurations include electric actuators, as well as optional hand lever, worm gear box, and pneumatic actuators suited to various operational environments.
What manufacturing standards govern the connection and face-to-face dimensions?
The valve conforms to AWWA C504 for face-to-face dimensions, ANSI/AWWA A21.11/C111 Class 125 for flanged connections, and ISO 5211 for top-flange actuator mounting.
What industries are suitable for this vulcanized seat butterfly valve?
It is widely implemented in pipeline fluid control systems across petroleum, chemical processing, metallurgy, and municipal/industrial water treatment sectors.
