GEMÜ N086 Pressure retaining valve



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The GEMÜ N086 pressure retaining valve ensures a constant back pressure in process plants. If the inlet pressure rises above a preset value, the diaphragm is raised against the spring force. The valve opens and the excess pressure can escape into the outlet line. If the pressure on the inlet side is reduced, the spring force pushes the diaphragm against the seal seat, closing the valve. Depending on requirements, the spring force can be adjusted using a set screw and secured with the lock nut.