January 2021

Valves, Pumps and Turbomachinery

Modular reed valve technology for reciprocating compressors

Hydrocarbon processing plants use reciprocating compressors for process gases in a certain flow and differential pressure range, and double-acting cylinder-piston arrangements are almost always involved.

Bloch, Heinz P., Hydrocarbon Processing Staff

Hydrocarbon processing plants use reciprocating compressors for process gases in a certain flow and differential pressure range, and double-acting cylinder-piston arrangements are almost always involved. These arrangements include inlet and discharge valves on both the head end and the frame end (also called the “crank end”) of the cylinder. Inlet valves act as check valves that allow the gas to enter the cylinder during volume expansion; the valves close off during compression. Discharge valves stay closed during volume expansion and begin to open after the gas has reached a pressure higher than that of the opposing (delivery-side or process-side) pressure. The back-and-forth movement of t

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