Product features:
The advantage is specially marked in comparison with traditional flap valve.
1 Open and close automatically in security and reliability according to hydraulic difference without noise and in no
need of operator and maintenance.
2 Positive start has little water resistance and start-up pressure and the flow can be adjust naturally according to hydraulic pressure.
3 Reserve cut-off has good seal without leakage to prevent from flowing backward. The back pressure is higher and the effect is
better.
4 Anticorrosion, prevent aging, strong applicability and long use life.
5 Wide size scope, nominal diameter of DN20-2400.
Dimensions of Installation
Nominal diameter(inch) | Valve port stair(mm) | Pipeline toughing distance(B>mm) |
1/2 ~3/4 | 15 | 15 |
1~1 1/4 | 20 | 20 |
1 1/2~2 1/2 | 25 | 25 |
3 | 40 | 40 |
4 | 50 | 50 |
6 | 50 | 50 |
8 | 50 | 50 |
10 | 50 | 50 |
12~14 | 100 | 100 |
16~20 | 150 | 150 |
24~36 | 200 | 200 |
42 | 250 | 250 |
48~60 | 300 | 300 |
72 | 400 | 400 |
Note: Valve of DN800-1800(32”-72”) is with double Clamps. |
Packaging Detail: | plastic bag/braiding in side, wooden box outside |
Rubber valve