Rubber Expansion Joints

 NR,NBR,EPDM,Rubber expansion joints can reduce the vibration and noise of the pipeline system, and fundamentally solve the problems of interface displacement, 

       axial expansion and misalignment of various pipelines.

    2. According to the rubber material, the rubber expansion joint can be made into acid-resistant, corrosion-resistant, oil-resistant, heat-resistant and 

       other varieties to adapt to a variety of media and environments.

    3. The material is polar, the rubber has good sealing, light weight, convenient installation and maintenance, and long service life, but avoid contact 

       with sharp metal tools and machinery to avoid puncturing the sphere.

    4. If it is used overhead, it can be equipped with an elastic bracket, and the bolt should be tightened by diagonal method when installed.

    5. If the pressure of the pipeline is too high, the limit bolt should be used to connect the flanges at both ends.

    6. The flange connection standard adopts GB4216.3-4216.5 standard, if other standards are used, they can be explained separately.

     Executive Standards:

    (1) Special requirements can be customized by letter to drawing, flange according to the standard atlas, the relevant standards are manufactured. 

    (2) DN350-DN600 (2) working pressure is 1.6Mpa, DN32-dn400 (3) working pressure is 2. Mpa。

    (3) DN700-DN1200 working pressure is 1Mpa,DN1400 working pressure is 0.6Mpa,

         DN1600-DN1800 working pressure is 0.4Mpa, and the flange is selected according to 0.6Mpa.

         The working pressure of DN2000 is 0.25Mpa, and the flange is selected according to the pressure of 0.6Mpa.

    (4) For high-rise water supply and drainage, products above DN200 are used, and the pipeline must have fixed supports or fixed brackets, otherwise 

         the products should be installed with anti-pull-off devices. 

    (5) The flanges at both ends can be rotated 360°, and the two ends of the joint can be deflected arbitrarily, which is convenient for adjusting the axial or radial displacement. 

    (6) If the medium is oil, corrosive substance, and the working environment temperature has special requirements, it must be explained when ordering. 

         The working pressure rating of the product is: 0.6Mpa1.0Mpa1.6Mpa2.5Mpa