Swing Check Valves

Swing check valves are generally installed horizontally, but as long as you avoid the valve rate to reach the dead center position, you can also be installed vertically. In the case of vertical installation, the valve closing torque is generated by its gravity, due to the valve in the fully open position when the closing torque is very small, so the valve will be delayed closure. In order to overcome the shortcomings of the valve's slow response to the stagnant medium, the valve can be configured for a lever weight mechanism or spring to assist the loading.

Swing Check Valves Specification

Swing Check Valves

The disc of the swing check valve is disc-shaped and rotates around the rotating shaft of the valve seat channel. Because the channel inside the valve is streamlined, the flow resistance is smaller than that of the lift check valve. It is suitable for large-caliber occasions with low flow rate and infrequent flow changes, but not suitable for pulsating flow. Its sealing performance is not as good as the lift check valve. Swing check valves are divided into single-flap type, double-flap type and multi-flap type. These three types are mainly divided according to the valve diameter. The purpose is to prevent the medium from stopping flowing or backflowing and weakening the hydraulic impact.

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