Swing Check Valve The swing check valve consists of valve body, bonnet cover, valve disc, and a hinge. The valve disc is disc – shaped and rotates around the hinge pin outside the valve seat passage. Its passage is designed to be streamlined, and the flow resistance is smaller than that of the straight-through lift…
Flange Check Valve The flanged check valve is the valve connected to the pipeline through flanges. It is convenient in installation and maintenance, good sealing performance, etc. Therefore, it has been widely used in industrial fields such as petroleum, chemical industry, and food industry.
Wafer Type NRV -Wafer type non- return valve, it is a check valve, here refering to following types of wafer check valve: A wafer type NRV is usually installed between two flanges and fixed with bolts. It has a compact structure and is easy to install. It is an automatic valve that opens and closes…