The V186/V86 Pressure Retaining Valve serves 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 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. When used as a bypass, it can also function as a relief valve to reduce pressure peaks. Due to the zero static design of the lower part, the valve is also suitable for use in ultra-pure water applications, as well as for technically pure, neutral and aggressive fluids.