Home > Products > FRP Products > Non-return Flap Valve,hdpe Flap Valve,flap Gate Valve
Non-return Flap Valve,hdpe Flap Valve,flap Gate Valve
- tianjin port
- T/T
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Product Details
| Standard or Nonstandard | Standard | Structure | Stop | |
| Pressure | High Pressure | Power | Hydraulic | |
| Material | Other, FRP | Temperature of Media | High Temperature | |
| Media | Water | Port Size | 200-3000 mm | |
| Place of Origin | Hebei, China | Model Number | st-l-4107 | |
| Brand Name | Sinta |
Product Description
non-return flap valve,hdpe flap valve,flap gate valve
Structure and operating principle of flap valve:
It’s composed of valve seat, valve plate, consolidated soil seal ring, hinge four parts.
Only be used to single-track water of round or square water outlet, it has advantage of strict structure, good reliability and operate need not the force of people. Motive power of start and stop come from the pressure of water. When the inside pressure greater than outside, the flap valve will open, conversely, it will close.
The nature of flap valve:
Nominal pressure: 0.1MPa-1.0MPa
Applicable media: water, river water, seawater, living water, industrial sewage.
Applicable temperature: <50°C
Applicable scope:
water conservancy system, municipal wastewater, flood control works, sewage treatment plant, waterworks and so on.
The specification and category:
The specification of flap valve is divided into round and square two kinds, it can be designed and produced depend on the form of the water outlet.
The flap valve has two categories: hollow floating plate shape and flat plate shap.
FRP flap valve mechanical property reference table
1.direction elastic modulus | 2.direction elastic modulus | shear elastic modulus | Poisson's ratio | tensile strength of 1,2 direction 1,2 |
10GPa | 10GPa | 4GPa | 0.25 | 120MPa |
The performance of flap valve
Item/material | FRP flap valve | Steel flap valve | Cast iron flap valve | HDPE flap valve |
tensile strength (MPa) | 160-320 | 380 | 187 | 21 |
Specific strength | 100-168 | 48.5 | 25.5 | 22 |
specific gravity | 1.8-2.1 | 7.84 | 7.34 | 0.954 |
Opening water level
(mm) | >20-50 | >150 | >150 | >50 |
Opening angle | >60° | <50° | <50° | >60° |
corrosion resistance | Resist | no resistant | no resistant | Resist
|
ageing resistance
| Resist
| Resist
| Resist
| Resist
|
Seal condition | Well
| Well
| Bad
| Well
|
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
|
Contact Us
- Hebei Sinta FRP Trading Co., Ltd.
- Contact nameSinta FRP Chat Now
- Phone86-311-87786958
- AddressNo.282, North of Zhonghua Street, Shijiazhuang, Shijiazhuang, Hebei
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