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 low resistance backflow preventer integrates multiple functions. In addition to ultra-low resistance and more reliable safety performance
The remote control float valve controls the opening and closing of the main valve through the remote float level signal, achieving automatic water inlet and stable liquid level
It can be used as a pressure holding valve or a pressure relief valve. When the set pressure is exceeded, the relief valve becomes a path with low resistance