The 1800 PFM 1-1/2" and 2" industrial regulator is designed for applications requiring medium-to-high capacity, precise outlet pressure control and fast response to changing loads. It is suited for use with meters having base capacities up to 11,000 CFH.
An 1800 PFM handles varying inlet pressures up to 125 PSIG while controlling a set constant outlet pressure within กำ1% of the absolute set pressure over a wide range of flow rates. It is ideal for fixed factor measurement at metering pressures from 0.5 to 30 PSIG.
A worker/monitor regulator installation consists of a regulator with an external static connection and a regulator with an internal static connection. The regulator selected to be the monitor is set at 2" to 5" w.c. above the controlling regulator. Upstream monitoring, as shown in the sketch above, is more commonly used. The external static connection should be connected at a point free of turbulence and preferably a minimum of five pipe diameters downstream. A worker-to-monitor conversion kit is available.