Swing check valve H44H-25 DN100

AboutSwing check valve H44H-25 DN100Detailed introduction:

meaning

H: Indicate that the check valve type is swing type.

4: The connection form is flange connection.

4: The structural form is a swing type.

H: The sealing surface material is alloy steel.

25: The nominal pressure is 2.5 MPa.

DN100: The nominal diameter is 100mm.

working principle

Opening process: When the medium flows forward, the pressure will push the valve disc up, the valve opens, and the medium can pass smoothly.

Closing process: Once the flow direction reverses and the pressure disappears or decreases, gravity and spring force will cause the valve disc to fall back onto the valve seat, thereby closing the channel and preventing the medium from flowing back.

structural characteristics

Built in rocker arm rotary opening structure: All opening and closing components of the valve are installed inside the valve body, without penetrating the valve body. Except for the sealing gasket and sealing ring used in the middle flange, there are no external leakage points overall, eliminating the possibility of valve leakage.

Spherical connection structure: The connection between the rocker arm and the valve disc adopts a spherical connection, allowing the valve disc to have a certain degree of freedom within a 360 degree range and appropriate micro position compensation.

Sealing surface of sealing pair: The sealing surface is welded with alloy steel (13Cr) or hard alloy Stellite 6, which will not wear out quickly due to erosion even in media containing fine particles, and has strong corrosion resistance and wear resistance.

execution standard

Design and Manufacturing: GB12236.

Structural length: GB12221.

Connecting flange: JB/T79-1994.

Testing and Inspection: JB/T9092-1999.

Application field

Petrochemical industry: used to prevent the backflow of petroleum and chemical media, ensure the normal operation of pipeline systems, and avoid equipment damage and process confusion caused by medium backflow.

Pharmaceutical industry: In the pharmaceutical production process, control the one-way flow of drugs and raw materials to ensure hygiene and safety, and prevent cross contamination between different drugs or raw materials.

Power industry: To prevent the backflow of steam, water and other media in the pipelines of the power system, protect the safe and stable operation of power generation equipment and pipeline systems, and improve the efficiency and reliability of power production.

Swing check valve H44H-25 DN100Main connection dimensions

The structural length L of the rotary check valve H44H-25 DN100 is 350mm, and the height H is 350mm.

maintenance

Regular inspection: Check and maintain the sealing performance and operating mechanism of the valve, inspect the wear of components such as the valve disc and seat, and check for any leakage on the sealing surface.

Cleaning and maintenance: Remove impurities accumulated around the valve and its surroundings, keep the surface and internal channels of the valve clean, and prevent impurities from accumulating and affecting the normal opening and closing of the valve.

Replacement of parts: Timely replace worn components such as sealing rings, springs, etc. to ensure the sealing performance and flexibility of the valve.