Rubber Expansion Joint, Flexible Rubber Joint

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Rubber Expansion Joint, Flexible Rubber Joint
Posting date : Jan 15, 2014
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40-
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Specification: 1.24 years manufacturing experience 2. ISO9001, ISO14001 3. Import rubber 4. China National Standards Drafting Unit of Rubber Joint 5. Qualified Joint Supplier in Nuclear Power Plant Characteristic: 1. This product could primarily reduce the vibration and the noise of the piping system, completely solve the different piping problems as displace of joint, axial flex and etc. 2. According to different material requirement, product could be made as acid proof, corrosion proof to suit different medium and environments. 3. The materials are good sealing, light weighting, easy to fix and maintain, also has long-working expecting. But please keep far away from sharp metal in order to avoid breaking of the rubber body. 4. For flanges of other standards or non-standards. It is necessary to be agreed upon separately. Please specify standard of furnish diagram and relative parameter. We will manufacture accordingly. Rubber material may be selected according t your requirement. 5. Anti-corrosion: EPDM and NBR rubber can bear high temperature and can anti-corrosion. 6. Double sphere flange end rubber joint: The rubber body has two bridges. It can bear more pressure and the length is long than single sphere rubber joint. 7. The size can made as customer's drawing, we can make mould for special type. 8. They are cost effective, the total cost is low because of rubber is cheap and it have long use life. Advantage of our rubber joint: A. Ozone and chemical resistance B. High temperature resistance C. Excellent weather resistance D. Anti-aging, anti-radiation, good flexibility, good elasticity E. Excellent resistance of acids, aliphatic hydrocarbons Our products have the following character: Good select materials, advanced equipment, skillful workmanship, rigorous quality control standards, attractive design and durability. They are well-known for excellent quality, most competitive price, and lower cost and prompt delivery. The product is made up of the composite rubber ball, including internal rubber layer, nylon fabric, and external rubber layer and the loose metal flange. With the merits of high pressure, stable elasticity, big displacement, good damping capacity and noise reduction, it is widely used in the systems of water supply, drainage, water circulation, heating and ventilating, and air conditioning, and the piping systems of the paper-making, the petrochemical industry, marine, compressors pumps, fans, etc Physical and Mechanical Properties Form No Item Index Test value Inner rubber Outer rubber 1 ≥Tensile strength(MPa) 12 13 13.6 2 ≥Break strength (%) 450 500 564 3 ≤Break permanent deformation (%) 25 30 22 4 ≤Brittleness temperature -30 -30 -40 5 ≥Viscosity(KN/m) 2.0 2.0 5.6 6 Aging hot air (100D×48h) Tensile strength change (%) +25~-25 +25~-25 20 Tensile rate change (%) +10~-30 +10~-30 5 7 ≥Acid resistant10%H2SO4×168h 0.7 0.7 0.85 8 ≥Alkali proof10%NaOH1×68h 0.7 0.7 0.85 Material lists No Name Material 1 Inner rubber ⅡR、CR、EPDM、NR、NBR 2 Outer rubber ⅡR、CR、EPDM、NR、NBR 3 Framework layer Polyester cord fabric 4 Reinforcing bar Polyester cord fabric 5 Flange Q235 Technical Parameters for Three-ball Flexible Rubber Joint DN FF Length (mm) Axis displacement Radial displacement Deflexion displacement mm inch Extension Compression 300 12″ 450 75 90 70 ±12° 350 14″ 450 75 90 70 ±12° 400 16″ 450 75 90 70 ±12° 450 18″ 550 90 110 70 ±12° 500 20″ 550 90 110 75 ±12° 600 24″ 550 90 110 75 ±12° 700 28″ 550 90 110 75 ±12° 800 32″ 550 90 110 75 ±12° 900 36″ 550 90 110 75 ±12° 1000 40″ 550 105 125 85 ±12° 1200 48″ 550 105 125 85 ±10° 1400 56″ 600 105 125 85 ±10° 1600 64″ 600 105 125 85 ±10° 1800 72″ 600 105 125 85 ±10° 2000 80″ 600 120 135 90 ±10° 2200 80″ 650 120 135 90 ±10° 2400 96″ 650 120 135 90 ±10° 2600 104″ 650 120 135 90 ±10° 2800 112″ 650 120 135 90 ±10° 3000 120″ 650 120 135 90 ±10° Note: 1. Please remark the application standard of structural strength and connection size when placing an order. 2. If the relevant parameters of flexible rubber joints needed are not within the scope of the foregoing list, please remarks. This company can design and manufacture on behalf of you. http://www.steel-bellows.com

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