Stop check valves are multi-purpose valves with globe and check functions. Its structure is similar to globe valve, but the stem and disc are not fixed. When the stem descends and the disc is pressed tightly on the seat, it acts as a stop valve; when the stem rises, it acts as a check valve. The use of stop-check valves can save installation cost and space location in pipelines where both stop valves (or gate valves) and check valves are required (such as the outlet of pumps) or in places where installation location is limited (such as ships).
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