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The multi-functional air valve is a protective device used in water supply pipelines. Its primary function is to prevent water hammer (the impact caused by sudden pressure changes) through exhausting and inhaling. The core function is to exhaust and inhale, automatically exhausting when the pipeline pressure drops to balance the internal and external air pressure; when the pressure rises, it closes the exhaust port to prevent liquid backflow. It also takes into account water hammer protection by delaying the exhaust time to form an elastic compression space, thus suppressing the sudden pressure rise during water column reunion. The main working principle of Zhejiang Shanliu's water hammer proof air valve is under low pressure conditions: when the pipeline pressure drops, the valve automatically opens the exhaust port to exhaust accumulated air, avoiding negative pressure that can cause water column separation; under high pressure conditions: when the pressure rises, the valve closes the exhaust port to prevent gas or liquid backflow, maintaining system stability. The structure is simple, requiring no complex accessories, with flexible installation and low cost. It is widely used in municipal water supply, wastewater treatment, industrial fluid transportation, cooling water systems, and other applications requiring water hammer protection.
Model:
MSP4X-10/MSP4X-16/MSP4X-25/MSP4X-10Q/MSP4X-16Q/MSP4X-25Q/MSP4X-10P/MSP4X-16P/MSP4X-25PSpecification:
DN15-DN500Pressure:
PN10-PN25Material:
cast iron, ductile iron, stainless steelView detail>>
Model:
FSP4X-10/FSP4X-16/FSP4X-25/FSP4X-10Q/FSP4X-16Q/FSP4X-25Q/FSP4X-10P/FSP4X-16P/FSP4X-25PSpecification:
DN15-DN200Pressure:
PN10-PN25Material:
cast iron, ductile iron, stainless steelView detail>>
Model:
MSP4X-10/MSP4X-16/MSP4X-25/MSP4X-10Q/MSP4X-16Q/MSP4X-25Q/MSP4X-10P/MSP4X-16P/MSP4X-25PSpecification:
DN50-DN400Pressure:
PN16-PN64Material:
cast iron, ductile iron, stainless steelView detail>>
Model:
MSP4X-10/MSP4X-16/MSP4X-25/MSP4X-10Q/MSP4X-16Q/MSP4X-25Q/MSP4X-10P/MSP4X-16P/MSP4X-25PSpecification:
DN15-DN500Pressure:
PN10-PN25Material:
cast iron, ductile iron, stainless steelView detail>>
Model:
3SAV-10/3SAV-16/3SAV-25/3SAV-10Q/3SAV-16Q/3SAV-25Q/3SAV-10P/3SAV-16P/3SAV-25PSpecification:
DN50-DN500Pressure:
PN10-PN25Material:
cast iron, ductile iron, stainless steelView detail>>
Model:
C30-DN20/DN25/DN50/C30-SPSpecification:
DN50-DN500Pressure:
PN10-PN100Material:
NylonView detail>>
Model:
QF-10S/QF-16S/QKP-10S/QKP-16S/ZKP-10S/ZKP-16SSpecification:
DN15-DN50Pressure:
PN16Material:
NylonView detail>>