H44H Cast Steel Swing Check Valve

H44H Cast Steel Swing Check Valve

Introduction:

The function of H44H check valve is to control the one-way flow of medium in the pipeline to prevent the backflow of medium in the pipeline. The check valve belongs to the automatic valve category. The opening and closing parts open or close by themselves with the force of the flowing medium. The check valve is only used on the pipeline with one-way flow of media to prevent the media from backflow and prevent accidents. It is mainly used in petroleum, chemical, pharmaceutical, fertilizer, electric power and other pipelines.

Features and advantages:

The product is designed and manufactured in accordance with American national standard ANSI B16.34 and American Petroleum Institute standard API6D
The pressure bearing parts of the valve are cast by precision casting process, with beautiful surface quality and no surface defects such as sand sticking and cold shut; The internal quality is stable without internal defects such as looseness, sand hole and crack.
The swing check valve adopts a built-in rocker swing structure. All the opening and closing parts of the valve are installed inside the valve body without penetrating the valve body. Except that the middle flange is sealed with a sealing gasket or sealing ring, there is no external leakage point on the whole, which eliminates the possibility of valve leakage.
The connection between the swing check valve rocker arm and the valve disc adopts a spherical connection structure, which enables the valve disc to have a certain degree of freedom within the 360 ℃ range and an appropriate micro position compensation.
The sealing surface of swing check valve sealing pair is made of surfacing welding alloy steel (13Cr) or hard alloy Stellite 6, which will not be quickly worn due to erosion when used in medium with fine particles.

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