PERFORMANCE

• 
  

  Can be used in both input side and absorption side:

  EPDM rubber double sphere expansion joint can be used in the range of over 850 p.s.i. burst pressure and normal internal pressure 225 p.s.i. due to the combination of excellent forming technology and tough chemical fibers. In addition, EPDM double sphere rubber expansion joint can withstand the vacuum force generated on the conveying side and the suction side. Moreover, EPDM double sphere rubber expansion joint can be used even under high pressure, because its sphere is special spherical, and even pump connector will not contact the connecting bolt head.

• 
  

  Pipeline easy to install:

  Because EPDM twin sphere rubber expansion joint shell is soft and easy to deform, although there are some deviations, the pipeline connection can be completed quickly and easily. When installed, transverse, axial and angular displacement can be generated, which is not limited by the non-centric pipes and the non-parallel flanges.
  EPDM double ball rubber connectors help to absorb movement, which can prevent surrounding pipes or pipes from pulling, bending or leaking. This is a simple way to reduce maintenance costs, because replacing pipes or pipelines can be expensive.

• 
  

  Excellent ability to isolate sound and vibration:

  The highly flexible matrix of EPDM double sphere rubber expansion joint isolates vibration and solid sound in all directions to prevent noise.
  When working, it can reduce the noise transmission of the structure and has strong shock absorption ability..

• 
  

  Other advantages:

  1) EPDM double sphere rubber expansion joints need neither gaskets nor packaging.
  2) Because the flange is a loose fit type, EPDM rubber expansion joint can be installed on the pipeline without any difficulty.
  3) Because EPDM double sphere rubber connectors absorbs the elongation and contraction of pipeline caused by temperature change, it can prevent the damage of pipeline system and equipment.
  4) When pipes made of different engineering materials are connected with EPDM rubber expansion joints, it can prevent them from joining with EPDM rubber expansion joints, thus preventing them from electrolytic corrosion..

WORKING PRINCIPLE

PRODUCT PARAMETERS

NOTES:

1. Flange is available with DIN Standard,ANSI Standard,JIS Standard,and BS Standard.
2. Please sent us letter and drawing for customization if you have special requirements.
3. If this product is used for supplying water for high place, anti-pull-off device should be installed if the pipe has or fixed bracket is not as no fixed stay or fixed bracket or the force of fixed bracket is not large than axial force.

PRODUCT ALBUM

INSTALLATION INSTRUCTIONS

1.  Flexible rubber joints shall not exceed the displacement limit during installation.
2. In the installation of bolts to be symmetrical, to gradually pressure and tighten, to prevent  partial  leakage.
3.  When the rubber joint is laid flat, suspended, and vertically installed, the actual working axial displacement pressure of the rubber joint should be less than the supporting force of the pipeline, otherwise the anti-lifting device should be installed to prevent the work from being pulled.
4. The installation location of the rubber joint should be kept away from the heat source and ozone area. It is strictly forbidden to irradiate with strong radiation, expose to the sun and use the medium that does not meet the requirements of this product.
5. When the rubber joint is transported, loaded, unloaded or installed, it is strictly forbidden to sharpen the surface sealing surface.
6. When installing DN200mm or above, please use butterfly valve special flange or small diameter flange for mating flange, so as to avoid flange pull-out, misalignment, sealing surface fracturing and water leakage after installation.