Pressure Retaining Valves

The pressure retaining valves V786 and V186/V86 from GF Piping Systems serve to keep the working or system-related pressures constant, to balance out pressure pulsation and to reduce pressure peaks in chemical process systems.

If the inlet pressure rises above the set value, the pressurised valve piston is lifted against the spring force. Consequently, the valve opens and there is a reduction of pressure in the outlet pipe. The valve closes as soon as the inlet pressure sinks below the pre-set spring tension.

Online catalog

Fields of Application:

* microelectronics
* measurement & control
* chemical process industry
* water treatment

The pressure reducing valves V782, V82 and V182 from GF Piping Systems reduce the pressure within the system to a pre-set value. By using the differential pressure, the pressure reducing valve adjusts itself to the set working pressure.

The outlet pressure (working pressure) is not directly related to the inlet pressure. If the outlet pressure increases or decreases above/below the desired value, the diaphragm is lifted against the spring force or pressed down by the spring force, as the case may be, by the outlet pressure.

The pressure reducing valve begins to close/open until a state of equilibrium is re-established; in other words, the outlet pressure remains constant irrespective of an increasing or decreasing inlet pressure.

Online catalog

Fields of Application:

* microelectronics
* measurement & control
* chemical process industry
* water treatment

Pressure Relief Valves

The pressure relief valves V185 and V85 serves to keep the working or system-related pressures constant, to balance out pressure pulsation and to reduce pressure peaks in process systems.

The third pipe spigot fitted on the valve body means the valve can be installed directly in the main pipeline.

If the inlet pressure rises above the set value, the pressurized valve piston is lifted against the spring force. Consequently, the valve opens and there is a reduction of pressure in the outlet pipe. The valve closes as soon as the inlet pressure sinks below the pre-set spring tension.

Online catalog

Fields of Application:

* microelectronics
* measurement & control
* chemical process industry
* water treatment