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    Double Sphere Flexible Rubber Expansion Joint, Flanged

    $236.69
    Buy a double sphere expansion joint for pipes with large vibration and frequent hot and cold changes. Flanged flexible rubber expansion joint provides optional 2 inch/3 inch/4 inch/6 inch flange diameter, PN16 working pressure, carbon steel galvanized flange material, and optional NR, EPDM, or Neoprene rubber material.
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    SKU: ATO-REJ-KST
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    The double sphere rubber expansion joint is a flanged flexible expansion joint, available with 2 inch/3 inch/4 inch/6 inch flange diameter, NR, EPDM, or Neoprene material, carbon steel galvanized flange material, and the pressure and flange material can be customized.

    Features

    • The double sphere flanged rubber expansion joint is compact in size and lightweight, featuring good elasticity and facilitating easy installation and maintenance. It can reduce the structure-transmitted noise during operation and has a strong shock absorption ability.
    • It can produce lateral, axial and angular displacement during installation, and is not restricted by the pipe's non-concentricity and the flange's non-parallelism.
    • Twin sphere rubber joints can more effectively prevent corrosion in high-temperature, acid-alkali and oil-resistant pipelines, and the medium's erosion of the rubber joint increases its service life.
    • 2 inch/3 inch/4 inch/6 inch flexible rubber joints are available, with good comprehensive performance, and are widely used in various industries and pipeline matching.

    Specifications

    Model ATO-KST-16
    Working Pressure (MPa) PN16, Contact us if you need PN10/PN25.
    Burst Pressure (MPa) 3.0 (30)
    Kpa Vacuum 86.7 (650)
    Flange Diameter DN40-DN300, Contact us if you need a 150LB flange.
    Flange Material Carbon Steel Galvanized (Default), Stainless Steel 304/316L or Other Materials (Contact Us)
    Rubber Material NR (Default), Nitrile, Neoprene, EPDM, and Other Materials (Contact Us) 
    Applicable Temperature -20℃~+115℃ (-30℃~+250℃ Under Special Conditions)
    Applicable Medium Air, Compressed Air, Water, Sea Water, Oil, Acid, Alkali, etc.


    Dimension (Unit: mm)

    Double sphere rubber expansion joint dimension

    Diagrammatic Drawing: 1-Body, 2-Inner & Outer Rubber, 3-Body Carcass, 4-Reinforcing Ringather.

    Nominal Diameter Length Axial Displacement Horizontal isplacement Angular Deflection
    mm inch mm Extension Compression mm (a1+a2)
    40 1.5 165 10 20 20 30
    50 2 165 10 20 20 30
    65 2.5 175 10 20 20 30
    80 3 175 10 20 20 30
    100 4 225 15 30 25 30
    150 5 225 15 30 25 30
    200 8 325 20 40 30 30
    250 10 325 20 40 30 30
    300 12 325 20 40 30 30


    Applications

    Rubber expansion joint applications

    Tips: What are the materials of rubber expansion joints

    Rubber expansion joints can be made from a variety of materials, depending on the application, fluid type, temperature, and pressure conditions. Below is a summary of common rubber materials used in expansion joints, along with their characteristics and typical applications:

    1. Natural Rubber (NR):
      Excellent abrasion resistance and flexibility. Ideal for water and slurry.
      Not suitable for oil or chemicals.
    2. Nitrile Rubber (NBR):
      Good resistance to oils, fuels, and grease.
      Poor weather and ozone resistance.
    3. Neoprene (CR):
      Resistant to moderate oil, weather, and ozone.
      Used in marine and industrial applications.
    4. EPDM (Ethylene Propylene Diene Monomer):
      Excellent for water, steam, acids, and weather.
      Not suitable for oil or hydrocarbons.
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