Related illustrations

0862

Combined pressure reducing valve and pressure relief valve

· p. 146

The illustration shows a hot-water heating boiler with an exhaust flue, a hot-water supply riser, and a cold-water return pipe. The house water supply connects to the boiler return through a combined pressure reducing va

0861

Pressure reducing valve

· p. 145

The illustration shows a pressure reducing valve supplying makeup water from the house water system to a hot-water boiler. Two simplified valve cross-sections compare operation when boiler pressure is at or above the val