The micro resistance slow closing check valve adopts a double flap slow closing and streamlined flow channel design, with low resistance and smooth closing
○ Nominal diameter: DN50-DN600mm
○ Nominal pressure: PN10 – PN25
○ Applicable media: Non corrosive liquids such as clean water, fire water, circulating cooling water, etc
○ Operating temperature: 0 ° C to+120 ° C
○ Connection method: flange connection
○ Valve body material: ductile iron, cast steel, stainless steel
○ Sealing secondary material:
Valve disc sealing: NBR/EPDM/Viton
Valve seat: stainless steel overlay or integral copper alloy
○ Structural features:
Dual chamber slow closing piston mechanism, achieving two-stage closure of fast and slow closing
Micro resistance design, flow resistance coefficient ≤ 2.0
No water hammer, low noise, effectively protecting the water pump and pipeline network
○ Minimum pressure difference for opening: ≥ 0.01 MPa
○ Closing time: adjustable
Installation direction: horizontal or vertical, cannot be reversed
○ The streamlined flow channel design has low resistance and significantly reduces system head loss
○ The double valve slow closing structure closes smoothly, effectively suppressing the impact of water hammer when the pump stops
○ No need for external power for automatic opening and closing, reliable operation and energy-saving maintenance free
○ The sealing surface of the valve disc is wear-resistant and corrosion-resistant, ensuring long-term sealing performance
○ Compact structure and easy installation, suitable for horizontal or vertical pipeline layout
○ Preventing pump shutdown and water hammer at the outlet of municipal water supply pump station to protect the safety of pipeline network
○ High rise building domestic water supply system water pump outlet pipeline check device
○ The outlet pipeline of the fire pump achieves slow closure and hammer suppression to ensure the stability of the system
○ Industrial circulating water system prevents medium backflow and water hammer damage to equipment
○ Key nodes in long-distance water conveyance projects eliminate backflow and pressure fluctuations
The micro resistance slow closing check valve adopts a double flap slow closing and streamlined flow channel design, with low resistance and smooth closing
The sensing component of the multifunctional water pump control valve is a diaphragm, which has a smaller flow resistance coefficient than diaphragm and piston types.
Flow control valve is a hydraulic automatic valve with pilot operated and adjustable flow rate. By adjusting the pilot valve to control the opening of the main valve