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Lift Hydraulic Check Valve Installation

Lifting valve is to rely on the flow of the medium itself automatically open and close the valve flap, used to prevent the media back to the valve, also known as Hydraulic Check Valve, Hydraulic Check Valve, counterflow valve, and back pressure valve. Hydraulic Check Valve is an automatic valve, its main role is to prevent media backflow, to prevent the pump and drive motor reversal, and the release of container media. Hydraulic Check Valves can also be used on lines where the pressure may rise above the system pressure on the auxiliary system. Hydraulic Check Valve can be divided into spin-Hydraulic Check Valve (according to the center of gravity rotation) and the lift Hydraulic Check Valve (along the axis of movement).

1, the lift Hydraulic Check Valve disc is disc-shaped, around the seat channel for rotation shaft rotation, because the valve into the streamline linear flow resistance than the butterfly Hydraulic Check Valve is small, suitable for low flow rate and Small changes in the flow of occasions occasions, but not suitable for pulsatile flow, the sealing performance is less than the lift. Butterfly Hydraulic Check Valve single-valve, double-valve and most of the three, these three forms are mainly based on the valve caliber, the purpose is to prevent the media stop flowing or backwards, weakened the hydraulic impact.

2, lift Hydraulic Check Valve: valve along the valve body vertical centerline sliding Hydraulic Check Valve, internal thread Hydraulic Check Valve can only be installed on the level of the pipeline, in the high-pressure small-diameter Hydraulic Check Valve disc can be used ball . Butterfly Hydraulic Check Valve body shape and the same cut-off valve (common with the cut-off valve), so it has a larger fluid resistance coefficient. Its structure is similar to the cut-off valve, the valve body and the valve and the cut-off valve the same. The upper part of the valve plate and the lower part of the valve cover are machined with a guide sleeve which is simple and can be freely guided and guided by the valve guide. When the medium flows downstream, the valve plate is opened by the medium thrust. When the medium is stopped, Drop falling on the valve seat, play a role in blocking the media countercurrent. Straight through butterfly Hydraulic Check Valve medium inlet and outlet channel direction and seat channel vertical; vertical lifting Hydraulic Check Valve, the media import and export channel direction and valve seat channel in the same direction, the flow resistance than the straight-through small.

3, lift Hydraulic Check Valve: valve around the valve seat in the rotation of the Hydraulic Check Valve. Butterfly Hydraulic Check Valve structure is simple, can only be installed in the horizontal pipe, good sealing.

4, lift Hydraulic Check Valve: the valve along the valve body center line sliding valve. Pipeline Hydraulic Check Valve is a new type of valve, its small size, light weight, good processing technology, is one of the development direction of the Hydraulic Check Valve. But the fluid resistance coefficient is slightly larger than the swing Hydraulic Check Valve.

5, compression Hydraulic Check Valve: This valve is used as a boiler feed water and steam shut-off valve, it has a lift Hydraulic Check Valve and globe valve or angle valve of the integrated function. Daejeon valve welcome your presence! In addition, there are - some do not apply to the pump outlet installed Hydraulic Check Valve, such as the end of the valve, spring, Y-type Hydraulic Check Valve.


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