Water butterfly valve
01
Low - Pressure Wafer Type Butterfly Valve
Product Usage and Features
The butterfly valve is mainly composed of valve body, rotating shaft, valve plate, valve seat and driving mechanism (handle, worm gear, pneumatic device or electric device), etc. The driving mechanism drives the shaft and butterfly plate to rotate to achieve the purpose of opening and closing and controlling the flow. Its characteristics are as follows:
1. Simple and compact structure, small and light, easy to transport, install and disassemble;
2. 90°opening and closing, fast switching. Small operating torque, labor-saving and lightweight;
3. Good sealing performance, long service life, and zero leakage;
4. Different component materials can be selected to be suitable for a variety of media;
5. The flow characteristics are close to a straight line, and the adjustment performance is good.
Product Performance Specification
| nominal pressure | Shell pressure | sealing pressure | Applicable Medium | Temperature |
| 1.0/1.6/2.5 MPA | PN X 1.5times | PN X 1.1 times | Freshwater wastewater, seawater, air vapor, food, pharmaceuticals, various oils, acids, alkalis, etc | -20~150℃ |
Main component materials
| Component Name | Materials |
| valve body | Grey cast iron, ductile iron, stainless steel, carbon steel, copper aluminum alloy, etc |
| Valve plate | Galvanized ductile iron plate, nylon coated ductile iron plate, ball milled cast iron lined PTFE plate, stainless steel plate, Dual phase steel plate, carbon steel plate, copper plate |
| Valve shaft | Stainless steel, carbon steel electroplating, alloy steel 17-4420 steel, 416 steel |
| Valve seat (sealing surface) | NBR , EPDM, FPM, PTFE, etc |
| O-ring | FPM, NBR |
| Bushing | Lubricating bronze, PTFE |
Packaging
