Lift check valve application:

A tar tank is a storage device. Oil has a strong corrosive and oxidizing, is an important industrial raw material, can be used in the manufacture of pigments, detergents, batteries, etc., oil tanks are also widely used in the purification of oil, metal smelting and dyes and other industries. We supply more than 3000 lift check valves for our oil companies and offer diversified solutions.

Product features:

Lift check valve disc along the valve body vertical center line sliding check valve, internal thread check valve can only be installed on the horizontal pipe, ball valve can be used for high pressure small diameter check valve. Butterfly valve check valve body shape and cut-off valve the same (can be used as a cut-off valve), so the fluid resistance coefficient is larger. The structure is similar to the cut-off valve, and the valve body and disc are the same as the cut-off valve. The upper part of the valve and the lower part of the bonnet are provided with a guide sleeve, which can be freely raised and lowered in the guide sleeve. When the medium flows downstream, the valve is opened by the thrust of the medium. When the medium stops flowing, the valve is hung on the valve seat to prevent the medium from flowing back.

Small size, light weight The length of the structure is short, the length of the structure is only 1/4~1/8 of the traditional lift check valve, small size, light weight, and its weight is only 1/4~1/20 of the traditional lift check valve.

Easy installation, low fluid resistance The disc closes quickly and the water hammer pressure is small. Horizontal or vertical pipes can be used for easy installation. Smooth flow, small fluid resistance.

Long service life and high reliability Sensitive action, good sealing performance; short valve stroke, low valve closing impact; overall structure, simple and compact, beautiful appearance; long service life and high reliability.

working principle of lift check valve:

The lift check valve is a valve that automatically opens and closes the disc according to the flow direction of the medium itself to prevent the backflow of the medium. Also called check valve, one-way valve, return valve, back pressure valve. The lift check valve is an automatic valve, the main function is to prevent the medium from flowing backwards, to prevent the pump and drive motor from reversing, and to release the medium in the container. Lift check valves may also be used in conduits providing supply to auxiliary systems where the pressure may rise above the system pressure. Check valves can be divided into swing check valves (rotating according to the center of gravity) and lift check valves (moving along the axis).

Material standard

The products are designed and manufactured according to the national standard GB/T12235.
Lift check valve is selected for nominal pressure PN1.6 ~ 6.4MPa
The working temperature of -29~550 ℃ petroleum, chemical, thermal power station and other working conditions of the pipeline