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Brass Thread Spring Check Valve Vertical Pump Valves Water Stop Valve Control Tool 1/2" ,3/4" size: 1/2" , 3/4" , Material: Brass Working medium: water, non-corrosive liquid, etc. Features: The brass body and valve body are made of brass, gravity forged, resistant to high temperature and high pressure, and resistant to frost cracking. The thickened valve body can better withstand the pressure from the pipeline. Durable, good compression performance, high reliability, safety and longer product life. Safe and stable, fine workmanship, convenient installation and simple operation. Material: solid brass with stainless steel spring Able to drain sewage and gas, environmentally friendly and durable For checking control valve, prevent water, gas, oil reflux Form: In-line check valve