PERFORMANCE

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  Features:

  Suitable for suction and transportation (discharge).
  Designed for greater compression, elongation and angular motion than single spherical expansion joints.
  It is very suitable for absorbing thermal expansion and eliminating sound and vibration.
  No gaskets and packing are required.
  Good electrical insulator.
  Absorb water pulsation and minimize water hammer.

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  Application:

  Pressure piping system in building equipment and general industrial plant.
  Pump and turbine circuits are used in power plants, industrial machinery and general purpose pump blowers.
  Water supply and drainage pipes are used in water works and sanitary piping systems.
  Pipelines in industrial plants and shipyards, etc.

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  Performance characteristics of double-sphere rubber-soft joint:

  1. When installing double spherical rubber joints, it is strictly prohibited to install them beyond the limit of displacement.
  2. Installation bolts should be symmetrical, gradually pressurized and tightened to prevent local leakage.
  For working pressure above 3.1.6 MPa, the installation bolt should have elastic cushion to prevent the bolt from loosening.
  4. When installed vertically, the two ends of the joint pipeline should be supported vertically, and anti-pull-out device can be adopted to prevent pull-out under pressure.
  5. Double sphere rubber joint installation should be far away from heat source. Ozone zone zone. Strong radiation exposure and use of media that do not meet the requirements of this product are strictly prohibited.
  6. It is strictly forbidden for sharp appliances to scratch surface and seal surface when double spherical rubber joint is transported, loaded and unloaded. Connection modes: generally there are threaded connection, flange connection and so on.

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  The multi-wave design of double-sphere rubber joint increases the length of rubber joint and the compensation.:

  The multi-wave design of double-sphere rubber joint increases the length of rubber joint and the compensation. Special cold water, hot water, compressed air, natural gas and so on. With its superior design, novel structure and good sealing performance, it solves the problem of pipeline bursting and damage of pipeline connection equipment caused by thermal expansion and contraction, and effectively improves the service life of pipeline and the protection of equipment. Double spheres have greater compensation than single spheres. Because of its good comprehensive performance, the double-sphere rubber joint is widely used in chemical engineering, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, water heating, fire fighting, electric power and other basic projects, especially in pipelines with large vibration and frequent changes in heat and cold.

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 expansion 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 expansion 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 connector 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.