F-R-2864, FEDERAL SPECIFICATION, CONTROLLERS, BOILER-FEED WATER, AUTOMATIC (20 JAN 1995)

F-R-2864, FEDERAL SPECIFICATION, CONTROLLERS, BOILER-FEED WATER, AUTOMATIC (20 JAN 1995)., This specification covers controllers, consisting of some combination of one or more sensing devices, a flow method or device, and the necessary ancillary components to complete the system, that provide for automatic and independent control of the flow of feed water to boilers operating at steam pressures up to 1,500 pounds per square inch gage (psig) (10,341 kilopascals (kPa) gage) inclusive.