Single Bellow Flexible Rubber Joints/Rubber Expanion Joint

Single sphere rubber soft joint is also known as flexible rubber soft joint, shock absorber, expansion joint, pipeline shock absorber, shock absorber throat, soft joint, it mainly uses the good high elasticity of rubber, good sealing performance and thermal expansion and cooling It can reduce the vibration and noise of the pipeline, and play a certain role in compensating for thermal expansion and contraction caused by temperature changes.

Single sphere rubber soft joints are divided into two types: concentric concentric radial foot soft joints and concentric reducing rubber soft joints. Among them, concentric reducing rubber soft joints adopt advanced production technology. During the production process, the inner layer is subjected to high pressure, and nylon cords The cloth and the rubber layer are better combined, and the working pressure is higher and the quality is better than ordinary flexible rubber joints. It is a kind of pipe joint with high elasticity, high air tightness, medium resistance and weather resistance.
The single sphere flexible rubber soft joint is composed of: the inner layer of rubber, the middle layer is reinforced with SNT series nylon 66 ultra-high-strength industrial silk cord fabric, and the outer rubber layer is compounded. Combination of beaten metal Flanges.
Main parameters of threaded rubber soft joint
Working pressure: 0.6Mpa, 1.0Mpa, 1.6Mpa, 2.5Mpa
Working temperature: -40 degrees to 80 degrees (also can process high temperature resistant rubber soft joints)
Nominal diameter: DN32-DN1000
Material of main parts
Ball body: NR, CR, IIR, NBR, FKM, EPDM
Inner and outer lining: NR, CR, IIR, NBR, FKM, EPDM, PTFE
Main frame: Nylon cord
Flanges for rubber joints: cast steel, forged carbon steel (Q235), stainless steel (201, 304, 316, 321), plastic (PVC, PPC)
Rubber joints are widely used in chemical, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire protection, electric power and other basic projects, especially suitable for pipelines with large vibration and frequent changes in cold and heat.
The single sphere rubber soft joint, the rubber material used is different, can play different roles:
1. Natural rubber NR (over water, below 80 degrees)
2. EPDM (high temperature below 150 degrees, acid and alkali resistance, corrosion resistance, power plant desulfurization, lime slurry, gas, etc.)
3. Nitrile butadiene rubber NBR (oil resistance, including hydraulic oil, aviation kerosene and other oils, high temperature resistance below 150 degrees)
4. Wear-resistant rubber TZ (wear-resistant, generally used in the mining industry, granular media pipelines)
5. Special rubber (emulsion, sulfuric acid and other special media)
6, lined with tetrafluoroethylene (lined with polytetrafluoroethylene material, which can resist strong acid, strong alkali, emulsion, dilute sulfuric acid, wear resistance, high temperature resistance of 200 degrees, low temperature resistance of 100 degrees and other special industrial and mining environments)