Custom Ductile Iron EPDM Seal Wafer Butterfly Valve Supplier, Manufacturer
Product Description
Product Specifications
Characteristics
Butterfly valves not only have simple structure, small volume, light weight, low material consumption, small installation size, small driving torque, easy operation, and fast speed, but also have good flow regulation function and closing sealing characteristics.
Advantages
- Butterfly valves have the characteristics of simple structure, small volume, light weight, low material consumption, small installation size, fast switch, 90° reciprocating rotation, and small driving torque. They are used to cut off, connect, and regulate media in pipelines, and have good fluid control characteristics.
- Butterfly valves can transport mud and accumulate the least amount of liquid at the pipeline outlet. Under low pressure, good sealing can be achieved with exceptional regulation performance.
- The streamlined design of the butterfly plate reduces fluid resistance loss, making it an energy-saving product.
- The valve stem is a through stem structure that has undergone quenching and tempering treatment, possessing good comprehensive mechanical properties, corrosion resistance, and abrasion resistance. When opened and closed, the valve stem only rotates without moving up or down, preserving the stem packing. Fixed with the butterfly plate cone pin, the extended end prevents the stem from bursting out in case of accidental breakage.
- Connection methods include flange connection, clamp connection, butt welding connection, and lug clamp connection.
- Driving options include manual, worm gear transmission, electric, pneumatic, hydraulic, electro-hydraulic linkage, and other actuating mechanisms for remote control and automated operation.
Material Specifications
| Body | Plate | Rotating Shaft | Bushing | Seat | Operating Temp (℃) |
|---|---|---|---|---|---|
| Material Name | Electroplated Nodular Cast Iron | Material Name | Material Name | Material Name | - |
| Ductile Iron | Ductile Iron | Stainless Steel | PTFE | EPDM Rubber | -45～+135 (Short-time -50～+150) |
| Ductile Iron | Stainless Steel | Carbon Steel | PTFE | Hypalon | -18～+135 (Short-time -18～+149) |
| Aluminum Bronze | Titanium Steel | - | - | EPDM Rubber | -45～+135 (Short-time -50～+150) |
| Stainless Steel | CF8M Stainless Steel | - | - | Neoprene Rubber | -7～+93 (Short-time -7～+107) |
| CF8M Stainless Steel | Carbon Steel | - | - | NBR Rubber | -12～+82 (Short-time -12～+93) |
| Carbon Steel | CF8M Stainless Steel | - | - | Abrasion-Resistant Rubber | -10～+50 |
| - | - | - | - | Fluororubber | -23～+150 |
| - | - | - | - | Heat-Resistant EPDM Rubber | -20～+150 |
| - | - | - | - | PTFE | +10～+150 |
Dimensions
Packing & Shipping
Standard export wooden case packaging
Application Scenarios
Widely used in pipeline systems of water supply and drainage, heating, ventilation, chemical, food and other industries, especially suitable for scenarios requiring high sealing performance and non-strongly corrosive media.
Frequently Asked Questions (FAQ)
This wafer butterfly valve is manufactured according to the EN593 standard with precision investment casting workmanship, ensuring reliable structure and dimensions.
The valve provides bidirectional sealing with zero leakage rating, ensuring high sealing integrity under bidirectional pressure flow.
The standard operating temperature ranges between -20°C and 120°C. Depending on the selected seat material (e.g., EPDM, PTFE, or Fluororubber), maximum temperatures can reach up to +150°C.
The valve stem features a quenched and tempered through-stem structure fixed with a cone pin, with an extended anti-blowout end design preventing stem displacement during unexpected damage.
Body materials include Ductile Iron, Stainless Steel (CF8M), Carbon Steel, and Aluminum Bronze. Seats are available in EPDM, PTFE, NBR, Neoprene, Hypalon, and Fluororubber to suit different working media.
The valve can be operated via standard handle/lever, worm gear transmission, or automated systems including electric, pneumatic, hydraulic, and electro-hydraulic actuators.
