Mechanical · M-NM4DC

Circulating Pump Piping Connections and Accessories

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A circulating pump installation layout details the sequence of inline valves and fittings connecting to the building piping system. A double spherical flexible connector and shutoff valve precede a strainer upstream of the pump, while a union, reducer or increaser fitting, flow measuring device, check valve, and additional flexible connector follow downstream. All valves and fittings are sized to match the pipe size rather than the pump inlet and outlet size. A bypass line with a pressure gauge and shutoff valves bridges across the pump assembly.

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