A good check valve is expected to be made elaborately to meet the requirements properly. Actually, design and manufacture in conformation with various industrial standards, there are a lot of check valves which have been carried out with high in performance and low in maintenance. Pressure sealing swing check valves are ones among the varieties.

Generally speaking, the pressure sealing check valve is manufactured according to several necessary standards. And the wide employment of the pressure sealing check valves results from the special designs and outstanding features.
The back up ring is able to absorb thrust applied by internal pressure. The thrust ring is able to protect the soft metallic gasket from destination. And the gasket is the unique angular design so as to provide superior sealing.

Besides, the inside hinge pin mounted design would provide no leakage path to atmosphere, as well as the self aligning free floating and non-rotating disc. And the pressure sealing swing check valve is able to open at low differential pressures
In all, all the features lead the pressure sealing swing check valves to be widely applied in the power stations, general industry, process engineering for water, steam, gas, oil and other non-aggressive media. And the further applications are undergoing.