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Carbon steel flange single sphere EPDM coupling rubber bellows expansion joint

Sizes
DN25 to DN3000
Pressure
PN6~PN40
Temperature
-15 ~ 80℃
Flange Standard
DIN, ANSI, JIS etc
Material of Flange
Carbon steel flange
Material of Rubber
EPDM, natural rubber, NBR rubber and neoprene rubber

Overview

Precision molded Single sphere rubber joint connectors will perform double duty as a vibration elimination pump connector, or as an expansion joint, absorbing pipe movements.

Single sphere rubber joint connectors are perfect for HVAC or industrial applications where a flexible connector is needed to absorb axial, transverse, or angular pipe movements. Single sphere rubber joint are also superior to braided metal connectors for absorbing vibration and noise generated by mechanical equipment.

Single sphere rubber joint are precision molded in hydraulic presses. The spherical design ensures that internal pressures are exerted in all directions, distributing the forces evenly over a large area. The spherical design acts as a free-flowing arch, reducing turbulence and growth due to pressure thrust forces.

These connectors are manufactured with a high-quality EPDM rubber tube and cover, and nylon tire cord reinforcing. Special elastomers such as Neoprene, Nitrile, Hypalon, and Butyl are also available. The standard EPDM material is superior to competitive connectors made of Neoprene due to their higher temperature resistance and physical properties. Galvanized steel floating flanges are recessed to engage the rubber beaded end of the expansion joint and rotate easily for speed of installation.

Single sphere rubber joint are ideal for absorbing small stress motions and absorbing the noise and vibration emitted by mechanical equipment. The face-to-face dimensions of these single sphere connectors match the corresponding dimensions of spool type expansion joints, facilitating direct replacements. This short face-to-face dimension translates to economy of space in the piping system and ease of handling and installation.

Single sphere rubber joint are manufactured to meet or exceed the pressure, movement, and dimensional ratings of the Rubber Expansion Joint Division, Fluid Sealing Association.

Sealing Information: When installing rubber expansion joints, it is the responsibility of the installer to ensure bolting forces are evenly distributed to provide optimum clamping force to prevent the connection from leaking. When the expansion joint is being installed in non-ferrous piping systems, such as PVC, reinforcement of the mating flanges may be required to increase the mating flange rigidity.

Specification

No. Part Material
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 steel(Q235)、Stainless steel(201、304、316、321)、Plastic(CPVC、PVDF、PPH、UPVC、RPP)

Technical parameters

Item |Medol KXT-1 KXT-2 KXT-3 1. If media is oil, acid or alkali. 2. If special requirements for working temperature 3. If OEM orders with drawings or samples 4. Please Inform us about above when ordering
MpaWoring pressure 1.0(10) 1.6(16) 2.5(25)
Mpa Burst Pressure 2.0(20) 3.0(30) 4.5(45)
Kpa Vacuum 53.3(400) 86.7(650) 100(750)
Applicable Temperature -20℃~+115℃(-30℃~+250℃)-20℃~+115℃(-30℃~+250℃ under special conditions)
Applicable Medium Air, compressed air, water, sea water, oil, acid, alkali, etc.
Note: the materials of main parts are the same with those of KXT type
DN Nominal Diameter (mm) Axial displacement(mm) Length(mm) Haorizontal isplacement (mm) Angular deflection(a1+a2)°
mm inch elongation compression
32 1.25 6 9 95 9 15°
40 1.5 6 10 95 9 15°
50 2 7 10 105 10 15°
65 2.5 7 13 115 11 15°
80 3 8 15 135 12 15°
100 4 10 19 150 13 15°
125 5 12 19 165 13 15°
150 6 12 20 180 14 15°
200 8 16 25 210 22 15°
250 10 16 25 230 22 15°
300 12 16 25 245 22 15°
350 14 16 25 255 22 15°
400 16 16 25 255 22 15°
450 18 16 25 255 22 15°
500 20 16 25 255 22 15°
600 24 16 25 260 22 15°
700 28 16 25 260 22 15°
800 32 16 25 260 22 15°
900 36 16 25 260 22 15°
1000 40 18 26 260 24 15°
1200 48 18 26 260 24 15°
1400 56 20 28 350 26 15°
1600 64 25 35 350 30 10°
1800 72 25 35 350 30 10°
2000 80 25 35 350 30 10°
2200 88 25 35 400 30 10°
2400 96 25 35 400 30 10°
2600 104 25 35 400 30 10°
2800 112 25 35 400 30 10°
3000 120 25 35 400 30 10°
Note: 1. Special requirements can be made according to user drawings. The sphere can be made of nitrile rubber, EPDM, chloroprene rubber and other materials. 2. For suspended water supply, use products above DN200. The pipeline must have a fixed support or fixed bracket, otherwise the product should be installed with an anti-pull-off device. 3. If the user uses a rubber joint, the corresponding flange should be a valve flange.