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FRP Flap Valve
FRP Flap Valve
Check-stop valve ,according to material , there are cast iron check-stop valve, steel check-stop valve, FRP check- stop valve. According to shape, there are square,round, pontoon flat,flat flap check-stop valve.Check-stop valve installed at the end of the drain pipe , prevent the external water flowing back.
According to the material of the flap valve, it can be divided into FRP flap valve, Steel flap valve, Cast iron flap valve and HDPE flap valve.
Below is the data sheet of flap valve of different materials.
| Item | FRP flap valve | Steel flap valve | Cast iron flap valve | HDPE flap valve |
| Tensile strength | 160-320 Mpa | 380 Mpa | 187 Mpa | 21 Mpa |
| Specific strength | 100-168 | 48.5 | 25.5 | 22 |
| specific gravity | 1.8-2.1 | 7.84 | 7.34 | 0.954 |
| Corrosion resistance | Resist | No Resist | No Resist | Resist |
| Maintain and replace | General maintenance-free | make once corrosion prevention every year | make once corrosion prevention every year | General maintenance-free |
| Theftproof condition | Without recycling value | easy be stolen | easy be stolen | easy be stolen |
Application Scope：
Check-stop valve is used in water conservancy engineering system, municipal sewage engineering, urban flood control and drainage, sewage treatment plant, hydropower station, water supply plant, fish pond and so on. Applicable medium: water, drinking water, river water, sea water , domestic and industrial sewage water.
Contact Us Hebei Derunze Chemical Equipment Co.,Ltd North Factory Address: No. 398, Kaiyuan Road, Jizhou District, Hengshui City, Hebei Province South Factory Address: Jizhou High-tech Industrial Development Zone (Park) Hengshui City, Hebei Province TEL:19566187687 18603183629 0318-8816188 FAX: 0318-8639919 E-Mail: hbdrzhg@163.com | 
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