Rubber Joints are flexible connectors made of natural and/or synthetic elastomers and fabrics, with internal metal reinforcements where necessary, used to relieve stress in piping systems caused by thermal movement and mechanical vibration.
There are many materials to choose from, depending on the application area of the Rubber Joints. Rubber Joints also have their own advantages and disadvantages compared to metal expansion joints. Rubber Joints can absorb large movements over a short distance. They provide all directions of movement, such as axial, angular, lateral and torsional movements that may occur due to external conditions. Wind, shock loads and seismic movements can also be reduced.
Advantages
For corrosive applications and installations requiring a high cycle life, ball joints offer clear advantages over metal expansion joints. The profile prevents deposit buildup and produces less turbulence and pressure drop than stub joints. The sealing bead eliminates any requirement for a gasket between the mating flanges. Ball joints can be installed on raised or flat face flanges.
DIN Thread Rubber Joint Thread Rubber expansion Joint Rubber Joint, DIN Standard Thread Rubber Joint Rubber expansion joint has the characteristics of 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 the rubber body. Equipped with the excellent comprehensive performances of rubber expansion bellows, thread rubber bellows can be used for lift and transportation of raw water and sewarubberge, transportation of water supply, cooling cycle water of thermal power plant, condensate water of metallurgy industry and chemical materials of chemical industries, cooling and dilution of oil and chemical industries and flexible connection of other industries. It is also suitable to transport all grain and powder material and gas for its high abrasive resistance. Due to its good integral function, flexible rubber joint is used widely in key projects of chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, health, fireproof and power, etc. Item No. Parts Name Parts Material 1 Cover EPDM 2 Reinfording Fabric Nylon 3 Tube EPDM 4 Retain Rings Steel 5 Union Nut Carbon Steel 6 Un ion Screw Carbon Steel TECHNICAL CONDITIONS Working pressure Mpa (kgf/cm2) 1.6(16) Angular deflection 45° Explosion pressure Mpa (kgf/cm2) 4.8 (48) Vacuum Kpa (mm/Hg) 53.3 (400) Applicable Temperature -15-115(-30-250 under special conditions) Applicable media water, sea water, hot water, air, compressed air, oil, acid, alkali and so on
Clamp Flexible Rubber Joint Clamped Rubber Joint Rubber Joint 1. Oil resistance Flexible Rubber Joint can greatly reduce pipeline system vibration and noise, can solve the problem of joint displacement axial expansion, etc. 2. According to different materials, flexible rubber joint can be made into many kinds: acid resistance, alkali resistance, corrosive resistance, oil resistance, heat resistance, adapt to many mediums and different environment. 3. Material is polar rubber, good sealing, light weight, easy installation, long service life, avoid contacting with sharp metal device. 4. If use overhead, can match with elastic support, when installation, bolt with diagonal method to tighten up. 5. If pipeline pressure is high, use bolt connect the flange both ends. 6. Flange standard: ANSI, JIS, BS, DIN, GB, ect Item No. Parts Name Parts Material 1 Hoop Q235 304 316L 2 Outler layer glue IIR, CR, EPDM, NR, NBR 3 Skeleton layer polyester cord 4 Inner layer glue IIR, CR, EPDM, NR, NBR
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Thread Rubber Joint For transporting powder DN50 Thread Rubber expansion Joint Rubber expansion joint has the characteristics of 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 the rubber body. Equipped with the excellent comprehensive performances of rubber expansion bellows, thread rubber bellows can be used for lift and transportation of raw water and sewarubberge, transportation of water supply, cooling cycle water of thermal power plant, condensate water of metallurgy industry and chemical materials of chemical industries, cooling and dilution of oil and chemical industries and flexible connection of other industries. It is also suitable to transport all grain and powder material and gas for its high abrasive resistance. Due to its good integral function, flexible rubber joint is used widely in key projects of chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, health, fireproof and power, etc. Specification Working Pressure(Bar) 10 16 Bust pressure(Bar) 30 48 Vacuum(mm Hg) 400 650 MATERIAL LIST Item No. Parts Name Parts Material 1 Cover EPDM 2 Reinfording Fabric Nylon 3 Tube EPDM 4 Retain Rings Steel 5 Union Nut Carbon Steel 6 Un ion Screw Carbon Steel  TECHNICAL CONDITIONS Working pressure Mpa (kgf/cm2) 1.6(16) Angular deflection 45° Explosion pressure Mpa (kgf/cm2) 4.8 (48) Vacuum Kpa (mm/Hg) 53.3 (400) Applicable Temperature -15-115(-30-250 under special conditions) Applicable media water, sea water, hot water, air, compressed air, oil, acid, alkali and so on
German standard flexible rubber joint Single Rubber Joint 1. Flanged single sphere expansion rubber joint can greatly reduce pipeline system vibration and noise, can solve the problem of joint displacement, axial expansion, etc. 2. According to different materials manufacture, flexible rubber joint can be made into many kinds: acid resistance, alkali resistance, corrosive resistance, oil resistance, heat resistance, adapt to many mediums and different environment. 3. Material is polar rubber, good sealing, light weight, easy installation, long service life, avoid contacting with sharp metal device. 4. If use overhead, can match with elastic support, when installation, bolt with diagonal method to tighten up. 5. If pipeline pressure is high, use bolt connect the flange both ends. 6. Flange connection standard is GB4216.3-4216.5. Features Minimal axial dimensions Limited weight Low warping forces High-resistance to work High-capacity acoustic damping Working Pressure(Bar) 10 16 25 Bust pressure(Bar) 30 48 55 Vacuum(mm Hg) 400 650 750 MATERIAL OF EACH PARTS No. Part Meterial 1 Body NR, CR, IIR, NBR, FKM, EPDM 2 Inner & Outer Rubber NR, CR, IIR, NBR, FKM, EPDM, PTFE 3 Body Carcass Nylon cord fabric 4 Reinforcing Ring Multi-strand coppering steel wire 5 Flange Cast and forged carbon steelStainless steelPlastic (CPVC, PVDF, PPH, UPVC, RPP)
British standard flexible rubber joint Rubber Joint 1. Single Rubber Joint can greatly reduce pipeline system vibration and noise, can solve the problem of joint displacement, axial expansion, etc. 2. According to different materials manufacture, flexible rubber joint can be made into many kinds: acid resistance, alkali resistance, corrosive resistance, oil resistance, heat resistance, adapt to many mediums and different environment. 3. Material is polar rubber, good sealing, light weight, easy installation, long service life, avoid contacting with sharp metal device. 4. If use overhead, can match with elastic support, when installation, bolt with diagonal method to tighten up. 5. If pipeline pressure is high, use bolt connect the flange both ends. 6. Flange connection standard is GB4216.3-4216.5. Features Minimal axial dimensions Limited weight Low warping forces High-resistance to work High-capacity acoustic damping Working Pressure(Bar) 10 16 25 Bust pressure(Bar) 30 48 55 Vacuum(mm Hg) 400 650 750
American standard flexible rubber joint Single Rubber Joint Rubber Joint 1. Flanged single sphere expansion rubber joint can greatly reduce pipeline system vibration and noise, can solve the problem of joint displacement, axial expansion, etc. 2. According to different materials manufacture, flexible rubber joint can be made into many kinds: acid resistance, alkali resistance, corrosive resistance, oil resistance, heat resistance, adapt to many mediums and different environment. 3. Material is polar rubber, good sealing, light weight, easy installation, long service life, avoid contacting with sharp metal device. 4. If use overhead, can match with elastic support, when installation, bolt with diagonal method to tighten up. 5. If pipeline pressure is high, use bolt connect the flange both ends. 6. Flange connection standard is GB4216.3-4216.5. Features Minimal axial dimensions Limited weight Low warping forces High-resistance to work High-capacity acoustic damping Working Pressure(Bar) 10 16 25 Bust pressure(Bar) 30 48 55 Vacuum(mm Hg) 400 650 750 MATERIAL OF EACH PARTS No. Part Meterial 1 Body NR, CR, IIR, NBR, FKM, EPDM 2 Inner & Outer Rubber NR, CR, IIR, NBR, FKM, EPDM, PTFE 3 Body Carcass Nylon cord fabric 4 Reinforcing Ring Multi-strand coppering steel wire 5 Flange Cast and forged carbon steelStainless steelPlastic (CPVC, PVDF, PPH, UPVC, RPP)
KXFT Limited Flexible Rubber Joint of raw material used in Malaysia and Indoneisia's high quality rubber, natual rubber content reached 47%. The flange of KXFT limited flexible single sphere rubber joint are all made of high quality steel, large CNC machning, galvanized surface and standard flange typing Standard flange of KXFT limited flexible single sphere rubber joint, can produce DIN, ANSI, BS, JIS, GOST, AS ect. The KXFT limited flexible single sphere rubber joint complete specifitions, can be customized DN32-DN3000.
Type: Single Type, Double Type, BSP/NPT Thread Type Size Range: DN25-DN1600 Material of Rubber ball: CR, NBR, EPDM, HYPALON, VITON Material of flange: Galvanized Steel, Stainless Steel Working temperature: -20â?? to +115â?? Ball length for Single Sphere: 130mm, 150mm, 95mm-300mm Ball length for Double Sphere: 175mm-345mm Ball length for Union Type: 200mm for DN15-DN50, 240mm for DN65-DN80. Thread End Connection: BSP or NPT thread Flange End Connection: EN1092-1 PN10/PN16, ANSI150, BS4504, AS2129 Table D/E. Working Pressure: PN6, PN10, PN16, PN25 Application: water, warm water, seawater, weak acids, alkalis, etc... Easy installation and remove; absorbs vibration, noise and shock -
