Lined Vertical Check Valve H42F

Lined swing check valves is to automatically prevent fluid backflow valves, check valves in the valve opening pressure of the fluid, the fluid flows from the inlet side of the outlet side. When the inlet side of the pressure lower than the export side, the valve under fluid pressure factors, such as gravity itself automatically close to prevent fluid backflow. Structural features 1, lift straight-through valve main models H41S type structure is generally similar to the cut-off valve, which valve along the channel center for the lifting movement and reliability, usually only installed in a horizontal pipeline. 2, vertical lift-type check valve main models H42S, H72S type, H40S type, which H40S type is a new structure, the valve is a ball-type, common feature is the valve body passageway along axis do lifting movement, general It should be installed in a vertical pipe. 3, swing check valve type main models H44S, H74S type univalve swing and H76S double disc swing, valve around the shaft rotates, the fluid resistance is generally less than lift check valve, it suitable for large-caliber occasions, the installation location is not limited, usually installed in a horizontal pipeline. 4, the main models H47PO butterfly valve type, structure soft sealing double eccentric flange, micro Slow Close butterfly valve slow closing valve outer design means helps to reduce the flow resistance and vibration, reduce water hammer effect.