High temperature check valve application:

Combustion furnace refers to a combustion device, which includes a furnace body with a fixed seat at one end of the outer wall, a movement in the furnace body, an intake pipe, a sight glass, an igniter and an intake regulating valve. The intake pipe is connected with the movement, and the igniter is used to ignite the air in the movement. The air intake valve is used to adjust the air intake of the air intake pipe, the movement is also provided with an air outlet net plate group. The high temperature check valve we produce can adapt to the high temperature generated by the combustion furnace to work efficiently with the combustion furnace.

Product features:

High temperature check valve is a kind of automatic valve, its main function is to prevent the backflow of the medium, to prevent the pump and drive motor reversal, and the discharge of the container medium. The check valve can also be used on the pipeline to supply auxiliary systems where the pressure may rise above the system pressure. Check valve can be divided into swing check valve and lift check valve. Among them, the internal thread check valve, butterfly check valve belongs to this type of valve, which includes swing check valve and lift check valve.
 
 

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

The working principle of swing check valve:
 

The high temperature check valve slides along the vertical centerline of the valve body. Internal thread high temperature check valve can only be installed on horizontal pipes. On high-pressure high-temperature small-bore check valves, the disc can be spherical. Butterfly valve high temperature 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. The direction of the medium inlet and outlet channel of the straight-through butterfly high temperature check valve is perpendicular to the direction of the valve seat channel; the vertical lift high temperature check valve, the direction of the medium inlet and outlet channel is the same as the direction of the valve seat channel, and the flow resistance is less than the straight-through high temperature check valve.
 
 

Material standard

The products are designed and manufactured according to the national standard GB/T12235.
High temperature 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