921 Series Pressure Regulator

The Trerice 921 Series Pressure Regulator is fully self-contained and requires no external power source. This regulator requires that a user-supplied pressure sensing line be connected from the controlled point to the diaphragm actuator.

Pressure in this line acts upon the diaphragm to develop the necessary thrust to stroke the valve, thereby maintaining the system at the desired condition.

For pressure reducing applications, the pressure sensing line is mounted downstream, and the valve closes as this sensed pressure increases. Reduced outlet pressure not to be less than 10% of inlet pressure.

For back pressure relief applications, the sensing line is mounted upstream, and the valve opens as the sensed pressure increases.

Suitable for a variety of pressure regulating and pressure reducing applications.