Introduction of lift check valves

The lift check valve can work automatically. Only when the valve cover is vertically above the valve, the lift check valve will work automatically when the line pressure is in the horizontal position.

Like the globe valve, its indirect flow path also limits the flow, so it is usually used with the globe valve. The line pressure lifts the disc and allows flow. When the fluid flows in a reverse direction, the valve disc will fall back to its seat and immediately cut off the fluid to prevent backflow.

Here is the content list:

●What is a lift check valve?

●Operating principle of lift check valves

●The function of lift check valves

What is a lift check valve?

The lift check valve is commonly known as a one-way valve, in which the fluid can only flow along the water inlet, but the medium at the water outlet cannot return. The check valve is also called a check valve or check valve. It is used to prevent the reverse flow of oil flow in the hydraulic system, or to prevent the reverse flow of compressed air in the pneumatic system. There are two types of one-way valves: straight-through type and right-angle type. The straight-through check valve is installed on the pipeline with a threaded connection. There are three types of right-angle one-way valves: threaded connection, plate connection, and flange connection.

Operating principle of lift check valves

The lift check valve can automatically open and close through the flow of the medium itself, so as to prevent the backflow of the medium. In general, the installation mode of a one-way valve is the upper inlet and lower outlet, which is not only widely used in heat pump air conditioners, but also often installed at the compressor exhaust port.

The function of lift check valves

1. Install a check valve at the outlet of the pump to avoid damage to the oil pump due to the pressure rise of the system, thus playing a checking role. If the one-way valve and the pressure-reducing valve are installed in parallel, they can play the role of forward deceleration and reverse speed.

2. In addition, the one-way valve can also be connected in series with the pressure valve, and the pressure can be adjusted and increased after being connected in series, so as to avoid a pressure reaction. If it is a hydraulic control check valve, the check valve can be opened by controlling the oil circuit, so that the oil can flow in a reverse direction.

3. In the process of using the check valve, it is necessary to ensure that the control pressure of the hydraulic control check valve is sufficient, and there must be no loss of control pressure, and check whether the control pressure is consistent with the requirements for the reverse start of the check valve, otherwise, the check valve may not be used normally.

Wenzhou Luomai Valve Technology Co., Ltd has advanced production technology, complete manufacturing equipment, sophisticated testing equipment, and a good management mechanism. We provide customer-oriented services and provide customers with high-quality products and services. The company will continue to develop high-quality products, expand and lead the market and develop towards diversification.

If you want to know more information about the lift check valves, welcome to consult us. Our website is:www.luomaivalve.com.