Wafer Butterfly Valve is a compact and cost-effective flow control valve designed for water supply, HVAC, fire protection, wastewater treatment, and industrial pipeline systems. With a ductile iron body, resilient EPDM seat, and wafer type connection design, this butterfly valve provides reliable shut-off performance, lightweight construction, and easy installation.
This manual wafer butterfly valve is available with both lever operated and worm gear operated options, allowing customers to select the suitable operation method according to valve size, pipeline pressure, and application requirements.
The resilient EPDM rubber seat design ensures excellent sealing performance with low operating torque, while the ISO 5211 mounting pad allows easy installation of electric, pneumatic, or hydraulic actuators for automated valve control.
Chihao supplies DN40-DN1200 wafer butterfly valves manufactured according to international standards including EN593, suitable for PN10 and PN16 pressure applications. Customized materials, coatings, and actuator configurations are available for different industrial projects.
Key Features of Wafer Butterfly Valve
Compact Wafer Design for Easy Installation
The wafer butterfly valve adopts a compact body structure that fits between pipeline flanges, reducing installation space and overall system weight compared with traditional flanged valves.
Durable Ductile Iron Valve Body
The valve body is manufactured from high-strength ductile iron, providing excellent mechanical strength, corrosion resistance, and long service life in industrial pipeline applications.
Resilient EPDM Seat for Reliable Sealing
The EPDM rubber seat provides bubble-tight shut-off performance and is suitable for water, drinking water, cooling water, and wastewater applications.
Manual Lever and Gear Operation Options
Different operating methods are available:
-
Lever operated butterfly valve
Suitable for small diameter valves requiring quick manual operation. -
Worm gear operated butterfly valve
Recommended for larger sizes where lower operating torque and precise control are required.
ISO 5211 Actuator Mounting Platform
The ISO 5211 mounting pad allows easy connection with:
- Electric actuators
- Pneumatic actuators
- Hydraulic actuators
making the valve suitable for future automation upgrades.
Wide Size Range DN40-DN1200
Available in a wide diameter range to meet different pipeline requirements from small industrial systems to large water transmission projects.
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | Wafer Butterfly Valve |
| Operation | Manual Lever / Worm Gear Operated |
| Valve Type | Resilient Seated Butterfly Valve |
| Connection Type | Wafer Type |
| Body Material | Ductile Iron |
| Disc Material | Ductile Iron / Stainless Steel |
| Seat Material | EPDM |
| Size Range | DN40-DN1200 |
| Pressure Rating | PN10 / PN16 |
| Design Standard | EN593 |
| Actuator Mounting | ISO5211 |
| Face to Face Standard | EN558 |
| Working Temperature | -10°C to 120°C (EPDM dependent) |
| Suitable Medium | Water, Wastewater, Air, Cooling Water |
Available Configurations
Manual Lever Operated Wafer Butterfly Valve
Lever operated butterfly valves are commonly used for small diameter pipelines where quick opening and closing operation is required.
Typical applications:
- Building water systems
- HVAC pipelines
- Small industrial pipelines
Worm Gear Operated Wafer Butterfly Valve
Gear operated butterfly valves use a worm gearbox to reduce operating torque and provide smoother control, especially for larger diameter valves.
Typical applications:
- Water treatment plants
- Pumping stations
- Fire protection systems
- Industrial pipelines
Applications
Water Supply Systems
Used for pipeline isolation and flow control in municipal water distribution networks and water treatment facilities.
Wastewater Treatment
Provides reliable shut-off control in sewage treatment plants and wastewater pipelines.
HVAC Systems
Suitable for chilled water, cooling water, and heating circulation systems.
Fire Protection Systems
Used in fire water pipelines, pump systems, and protection networks.
Industrial Pipeline Systems
Applied in chemical processing, mining, power plants, and general industrial water systems.
Manufacturing Standards
Chihao wafer butterfly valves are manufactured according to international standards:
- EN 593 – Industrial valves, butterfly valves requirements
- ISO 5211 – Valve actuator mounting dimensions
- EN 558 – Face-to-face dimensions
- PN10 / PN16 pressure standards
Inspection includes:
- Body pressure test
- Seat leakage test
- Dimension inspection
- Coating inspection
Why Choose Chihao Wafer Butterfly Valve?
✔ Professional manufacturer of industrial valves and pipeline products
✔ Complete size range from DN40 to DN1200
✔ Reliable EPDM resilient sealing system
✔ Available with manual, electric, pneumatic, and hydraulic operation
✔ Suitable for distributors, contractors, and engineering projects
✔ OEM customization and bulk orders supported
✔ Export experience for global markets