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CN | EN

High speed composite exhaust valve

Technical Parameters

Product model: FSP
Size range: DN 25-300mm
Pressure rating: PN0.6-4.0 MPa
Working temperature: 0 ℃ -70 ℃
Fluid medium: clean water
End connection: PN10/16/25, ANSI 150LB

Product Details

Product Overview
This valve is installed at the pump outlet or in the water distribution pipeline to remove air accumulated in the pipeline and improve the efficiency of the pipeline and water pump. When negative pressure is generated in the pipeline, this valve quickly sucks in external air to prevent damage to the pipeline due to negative pressure. Mainly used in water supply systems, firefighting, and agricultural irrigation.

Product Features
1. Exquisite and advanced mechanical design, with sturdy and durable floating balls, can prevent damage caused by sudden water hammer.
2. Before the water level rises to push the floating ball seal exhaust hole; Even when the compressed air velocity reaches the speed of sound, the floating ball can still stay at the bottom position.
3. There are no arms or levers to prevent vibration and detachment issues.
4. There is a stainless steel sleeve on the outside of the floating ball to ensure that it slides within the set guide rail.
5. The bottom rubber anti-collision pad has the function of protecting the floating ball from collision during descent. Under negative pressure, it can achieve rapid drainage and suction functions through a well-designed enough number of holes.
6. The upper filter screen, as an optional component, has the function of safety protection and preventing insects or birds from entering.
7. The inner and outer parts of the valve body are coated with epoxy resin, which can achieve a longer service life.
8. The manufacturing standards comply with GJ/T 217, BS EN 1074-3, and AWWA C512.
9. Flange drilling and dimensions shall comply with GB/T 17241.6, BSEN 1092, BS EN 558, and ANSI specifications.


Main overall connection dimensions

DN ΦD ΦK N-Φd H
PN10 PN16 PN25 PN10 PN16 PN25 PN10 PN16 PN25
50 165 165 165 125 125 125 4-Φ19 4-Φ19 4-Φ19 280
80 200 200 200 160 160 160 8-Φ19 8-Φ19 8-Φ19 365
100 220 220 235 180 180 190 8-Φ19 8-Φ19 8-Φ23 395
150 285 285 300 240 240 250 8-Φ23 8-Φ23 8-Φ28 485
200 340 340 360 295 295 310 8-Φ23 12-Φ23 12-Φ28 570
250 395 405 425 350 355 370 12-Φ23 12-Φ28 12-Φ31 655
300 445 460 485 400 410 430 12-Φ23 12-Φ28 16-Φ31 750


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