The model #2PB is a direct acting, single seated spring loaded diaphragm pressure reducing pilot valve. It is actuated by a pressure responsive diaphragm, which tends to reach equilibrium with the pre-set and field adjustable spring force.
It’s fully balanced poppet design ensures high accuracy and stability.
When installed as a Pressure Reducing pilot valve on a BERMAD Water Control or Deluge valve, it automatically controls the main valve to reduce a higher inlet pressure to a lower constant outlet pressure, maintaining the chosen pre-set downstream pressure regardless of fluctuations in the high pressure supply line.
The model #2PBL has a larger valve seat, offering a higher flow capacity and therefore a faster regulation response.