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Products Rubber check valve

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Xh41 type drain rubber check valve

Xh41 rubber check valve can effectively prevent seawater and sediment invasion. There is a certain density difference between seawater and discharged sewage. When the sewage discharge is small, the traditional outlet diffuser will cause seawater intrusion into the diffuser due to the decrease of jet velocity at the nozzle, and the sediment in the seabed environment will be brought into the diffuser. ...

Product alias: Xh41 type drain rubber check valve
Product specification:【 DN100mm-DN2000mm】
Connection mode: flange
Product certification: ISO9001-2008
Scope of application:【 Acid, alkali, corrosion, oil, hot water, cold water, etc.]

  • Product introduction
  • Product advantages
  • Product diagram
  • technical parameter
  • Ordering instructions

    Xh41 sewage Rubber check valve It can effectively prevent the invasion of sea water and sediment. There is a certain density difference between seawater and discharged sewage. When the sewage discharge is small, the traditional outlet diffuser will cause seawater intrusion into the diffuser due to the decrease of jet velocity at the nozzle, and the sediment in the seabed environment will be brought into the diffuser. And xh41 sewage Rubber check valve The outlet is closed when the discharge is zero, and it can maintain a high jet velocity when the discharge is low, so it can prevent the invasion of seawater and environmental sediment.

    The flange duckbill valve can effectively prevent the invasion of sea water and sediment. There is a certain density difference between seawater and discharged sewage. When the sewage discharge is small, the traditional outlet diffuser will cause seawater intrusion into the diffuser due to the decrease of jet velocity at the nozzle, and the sediment in the seabed environment will be brought into the diffuser. The outlet of the flange duckbill valve changes with the change of the discharge rate. When the discharge is zero, it can maintain a high jet velocity under the condition of low discharge, so as to prevent the invasion of sea water and environmental sediment.
    Flange rubber duckbill valve products are mainly used in waterproof system, drainage system, pump outlet, lifting pump station and submerged aeration system. Main features of the product: rubber flange and valve body are connected into one, which is convenient for installation. The valve body adopts full rubber design, which will not cause silting and jamming, reduces the maintenance cost and allows the solid particles to pass through smoothly.
    Flange rubber duckbill valve size standard: Generally speaking, there are two installation sizes in China. One installation dimension is connected with the national standard flange. This is very early when the duckbill valve was designed. In order to match with the national standard, the flange standard of duckbill valve with diameter below 800 was specified. The center distance and outer diameter of flange of 10kg bolt hole in the national standard and the outer diameter of flange were involved in the design of duckbill valve with diameter of more than 800. The other is its own size, which is different from the national standard.
    It is made of rubber flange, valve body and duckbill. It is equipped with gasket metal flange. It can be connected with metal flange naturally. It can be directly installed on tank, pipeline and cofferdam. During installation and connection, the size of flange and connecting flange shall be corresponding to each other to ensure the sealing after the connection is tight, and pay attention not to damage the flange lip of rubber blowdown check valve.
    The rubber flange is connected with the valve body to facilitate installation. The valve body adopts full rubber design, which will not cause silting and jamming, reduces the maintenance cost and allows the solid particles to pass through smoothly.
    1. The flange and pipe assembly of flange duckbill valve shall be checked with tools and methods. The inclination deviation of the cut end face shall not be greater than 1% of the outer diameter of the pipe and shall not exceed 3mm.
    2. When assembling flange and pipe of flange duckbill valve, flange angle square should be used to check the verticality of flange.
    3. The flange duckbill valve should be provided with soft gasket when connecting, the peripheral dimension should be neat, and the gasket size should be consistent with the flange sealing surface.
    4. The flange of flange duckbill valve shall not be buried in the ground. The flange of buried pipeline or non passing trench pipeline shall be provided with inspection well, and the flange shall not be installed in floor, wall and casing.
    5. The flange connection of flange duckbill valve should be concentric with the pipe, and the bolt should be free to penetrate. The flange bolt holes shall be installed in the middle of the span, and the flanges shall be kept parallel, and the deviation shall not be greater than 1.5/1000 of the flange outer diameter, and shall not be greater than 2 mm. It is not allowed to eliminate the skewness by using the method of tightening the bolts with strength.
    6. The flange connection of flange duckbill valve should use the same specification of bolts, and the installation direction should be consistent. After the bolts are tightened, they should be close to the flange without any fine seam. When a washer is needed, each bolt shall not be more than one, and the tightened bolt should be flush with the nut.
    When tightening the bolts symmetrically, the bolts shall be evenly stressed.

    [product appearance and structural dimensions]
    Main technical parameters:
    Nominal diameter (DN) Pipe outer diameter (DW) Model (xl-t) Length (L) Height (H) Casing depth (c)
    Dw Do
    one hundred one hundred and eight one hundred and eight XL100-100-F one hundred and fifty-eight one hundred forty
    one hundred and fourteen one hundred and fourteen
    one hundred and fifty one hundred and fifty-nine one hundred and fifty-nine XL150-140-F two hundred and seventy two hundred fifty
    one hundred and sixty-eight one hundred and sixty-eight
    two hundred two hundred and nineteen two hundred and nineteen XL200-255-F three hundred and twenty two hundred and fifty-five fifty
    two hundred and fifty two hundred and seventy-three two hundred and seventy-three XL250-260-F three hundred and sixty two hundred and sixty-five seventy-five
    three hundred three hundred and twenty-five three hundred and twenty-five XL300-325-F four hundred and fifty three hundred and twenty-five one hundred and fifteen
    three hundred and fifty three hundred and seventy-seven three hundred and seventy-seven XL350-425-F five hundred and sixty four hundred and twenty-five one hundred and fifteen
    four hundred four hundred and twenty-six four hundred and twenty-six XL400-525-F six hundred and fifty five hundred and twenty-five one hundred and thirty-five
    four hundred and fifty four hundred and eighty four hundred and eighty XL450-625-F seven hundred and fifty six hundred and twenty-five one hundred and fifty
    five hundred five hundred and thirty five hundred and thirty XL500-725-F eight hundred and fifty seven hundred and twenty-five two hundred
    six hundred six hundred and thirty six hundred and thirty XL600-825-F nine hundred and fifty eight hundred and twenty-five two hundred
    seven hundred seven hundred and twenty seven hundred and twenty XL700-925-F one thousand and sixty nine hundred and twenty-five two hundred
    eight hundred eight hundred and twenty eight hundred and twenty XL800-985-F one thousand and two hundred one thousand and eighty two hundred and fifty
    nine hundred nine hundred and twenty nine hundred and twenty XL900-1025-F one thousand two hundred and sixty one thousand two hundred and fifty two hundred and fifty
    one thousand one thousand and twenty one thousand and twenty XL1000-1125-F one thousand four hundred and fifty one thousand and four hundred two hundred and fifty
    one thousand and two hundred one thousand two hundred and twenty one thousand two hundred and twenty XL1200-15250-F one thousand six hundred and twenty one thousand five hundred and fifty two hundred and fifty
    one thousand and four hundred one thousand four hundred and twenty one thousand four hundred and twenty-eight XL1400-1625-F one thousand seven hundred and twenty one thousand seven hundred and twenty-five three hundred
    one thousand and six hundred one thousand six hundred and twenty one thousand six hundred and twenty-eight XL1600-1950-F two thousand and ten one thousand nine hundred and fifty three hundred and fifty
    one thousand and eight hundred one thousand eight hundred and twenty one thousand eight hundred and twenty-eight XL1800-2320-F two thousand two hundred and eighty two thousand three hundred and twenty four hundred
    two thousand two thousand and twenty two thousand and thirty XL2000-2650-F two thousand and six hundred two thousand six hundred and fifty four hundred and fifty
    1. If the customer has special requirements for the product, the following instructions shall be provided in the order contract:
    (1) Structural length
    (2) Connection form
    (3) Nominal diameter, full bore, reduced diameter, pipe size
    (4) Service medium, temperature and pressure range
    (5) Our factory can make and design special products according to the special requirements of customers.
    2. Our factory can configure and design special products according to the special requirements of customers.
    3. If the customer provides the determined product type and model, the customer shall correctly explain the meaning and requirements of the model, and sign the contract under the condition that both parties understand and agree.

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