YQ98004 filter piston slow closing check valve is installed in the water supply system of waterworks and high-rise buildings, as well as other water supply systems on the outlet pipe of the pump, to prevent the medium from flowing backward, and to prevent water hammer and the phenomenon of water hammer. A valve with both electric valve, check valve and water hammer eliminator, can effectively improve the safety and reliability of the water supply system. Our company produces YQ98004 filter piston check valve smoothly and reliably, eliminating pressure residual wave.
Working Principle
Model YQ98004 filter piston slow-closing check valve is installed in the pipeline of high-rise buildings, fire-fighting water-supply systems and other water-supply systems. When the pump is turned on, water enters the middle chamber through the conduit, pushing the piston up and the main valve switches on and off. When the pump stops working, the piston drops in the return pressure, and since the needle valve at the inlet has a smaller flow rate than the ball valve at the outlet, the piston drops slowly and the main valve closes slowly.
Performance Characteristics
- Effectively eliminates water hammer effects. Integrates the technical principles of delayed opening and rapid closing to prevent water hammer during pump startup and shutdown.
- Operation is convenient. Simply press the pump motor start/stop button, and the valve will automatically open or close according to the pump operating procedures.
- Excellent energy-saving performance. The valve body features a full-bore streamlined straight-through design, resulting in low pressure drop, high flow capacity, compact size, and lightweight construction.
Application Areas
The YQ98004 filter piston-type slow-closing check valve is primarily installed on the discharge pipelines of pumps in water intake, water supply, pressurization, submersible, and sewage pumping stations.
Installation Diagram
Product Parameters
Product Model | YQ98004-16Q |
Valve body material | Ductile Iron |
Nominal pressure | ≤1.6Mpa |
Applicable medium | Water and so on |
Applicable temperature | ≤80°C |
Product Size Reference
Nominal Diameter | lengths |
DN40 | 265 |
DN50 | 265 |
DN65 | 280 |
DN80 | 335 |
DN100 | 395 |
DN125 | 360 |
DN150 | 435 |
DN200 | 445 |
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