Safety valve

FREE-VALVE plastic Back Pressure Safety Valve is installed in the line of positive pressure discharge of metering pump,its function is to prevent siphon phenomenon occur.Removing the protective cap on the adjusting screw on site, then rotating and adjusting screw , the required pressure will be got by adjusting pressure gauge in the pipeline. Back pressure will be set within the range of 0-0.6 MPa by adjusting screw .

FREE-VALVE’s A28H spring full bore external thread type with lever safety valve(thread type) is based on the change of the media pressure at the inlet port and the spring pretension force to automatically open and close the valve disc.When the lifting force of the medium pressure (internal pressure) is higher than the spring pretension force, The valve disc overcomes the spring pretension force to open automatically, and the safety valve internal pressure drops after discharging excess media

FREE-VALVE’s UPVC safety valve Back pressure valve plastic pressure relief valve Safety relief valve is installed in the line of positive pressure discharge of metering pump,its function is to prevent siphon phenomenon occur

FREE-VALVE’s Pressure Regulators Plastic Pressure Relief Valves is installed in the line of positive pressure discharge of metering pump,its function is to prevent siphon phenomenon occur.  Removing the protective cap on the adjusting screw on site

FREE-VALVE’s plastic back pressure valve is installed in the line of positive pressure discharge of metering pump,its function is to prevent siphon phenomenon occur.  Removing the protective cap on the adjusting screw on site

FREE-VALVE’s Dosing Metering Pump Pipe PVC UPVC Stable Back Pressure Valve is installed in the line of positive pressure discharge of metering pump,its function is to prevent siphon phenomenon occur. Removing the protective cap on the adjusting screw on site,

FREE-VALVE’s UPVC back pressure safe relief valve is installed in the line of positive pressure discharge of metering pump,its function is to prevent siphon phenomenon occur. Removing the protective cap on the adjusting screw on site, then rotating and adjusting screw , the required pressure will be got by adjusting pressure gauge in the pipeline. Back pressure will be set within the range of 0-0.6 MPa by adjusting screw .