Automatic check valves

DN: 0.5 in - 1.5 in
Pressure: 0 bar - 16 bar
Temperature: -10 °C - 225 °C

For automatic shut-off in vertical piping systems. Heavy version without spring. Closes only by means of flowing media or the weight of the sealing element. Due to all-metal design with metal-to-metal sealing for high ...

DN: 65 mm - 150 mm
Pressure: 16 bar - 100 bar
Temperature: -10 °C - 300 °C

vertical lift check valve with automatic relief – design of the bofy is straight sealing – check valve disc – sealing surfaces are welded by hard ...

DN: 40 mm - 500 mm
Pressure: 0 bar - 16 bar
Flow rate: 9 m³/h - 7,000 m³/h

... flow returns. Ball check valves are available with flanges and internal threads. This type of valve is automatically opened and closed by the force generated by the flow of the medium ...

DN: 2, 3 in
Pressure: 3,000 psi - 15,000 psi

... standard. • The valve is casted by hard alloy steel and adopts union. Check Valves are installée! in high pressure lines to stop reverse flow by the automatic close ...

DN: 3 mm - 8 mm
Pressure: 0.1 bar - 6 bar
Temperature: -40 °C - 180 °C

Check valves are used to prevent media from flowing back in systems or to protect equipment against media blow-back. The three types (with spring, without spring and COMPACT) allow for use in many different ...

DN: 15 mm - 1,200 mm
Pressure: 1,000,000 Pa - 42,000,000 Pa
Temperature: 196 °C - 540 °C

... Product Description Swing check valve also known as one-way valve or check valve, its role is to prevent the media flows back in the pipeline. Opening ...

DN: 200, 150, 100, 80 mm
Pressure: 17.5 bar

HD Alarm Valve acts as a check valve by trapping pressurized water above the clapper and preventing reverse flow from sprinkler piping. It is used to actuate a fire alarm during flow ...

DN: 65 mm - 200 mm
Pressure: 20.7 bar

... public water supplies. The AV-1-300 Alarm Check Valve Trim includes pressure gauges to monitor system pressure conditions, a bypass check valve, a main drain valve, ...