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The QC series check valve is also known as an upstream, non-return, backpressure, or one-way valve; it is installed in support of automatic shutdown valves and safety devices. The main purpose is to prevent and protect the backflow medium against the consequences of unintended reverse flow.
|Rating||Class 150 to 1500 JIS 10K to 63K|
|Size||2” to 16”|
|Leakage Rate||API 598|
The hard faced integral seat provides a more stable and robust valve performance under any harsh conditions such as high temperature, pressure, slurry, and erosion.
By incorporating the high strength of a heat-treated hinge pin with hard facing based on the optimum material, Qublock swing check valves ensure more reliable operation and a long life cycle.
QC series swing check valves are designed to allow a large flow rate when the valve is fully open. This design offers a large stable flow while minimizing pressure loss.
QC series valves can be maintained while installed on a pipe. Critical parts such as the disc and hinge pin can be replaced after removing the top cover from the body without shutting down the pipeline and removing the entire swing check valve. Therefore, maintenance time and effort is greatly reduced.