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Malleable iron or ss304 threaded EPDM flexible bellow union rubber expansion joint
Sizes
DN15 to DN80
Pressure
PN6~PN25
Temperature
-15 ~ 80℃
Flange Standard
DIN, ANSI, JIS etc
Material of Flange
Stainless Steel 304, 316, 321 etc
Material of Rubber
NR, NBR, CR, EPDM, PTFE etc.
Overview
Female threaded threaded rubber couplings are ideal for isolating small diameter piping from vibrating mechanical equipment.
In smaller size applications where threaded connectors are normally used, Female threaded threaded rubber couplings will accommodate both pipe motions and vibration. Female threaded threaded rubber couplings will provide over 1” of axial compensation, as well as impressive ratings for lateral and angular deflection. The Neoprene or EPDM rubber body construction is also far superior to metallic connectors for eliminating noise and vibration generated by equipment such as pumps, chillers, and air handlers. These connectors are extremely versatile and can be used in a variety of services, and are available in designs to handle up to 150 PSIG and temperatures up to 200 degrees F.
Female threaded threaded rubber couplings 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.
Female threaded threaded rubber couplings are constructed with a high-quality EPDM tube and cover and nylon tire cord reinforcing. Neoprene construction without cables is also available.
Female threaded threaded rubber couplings offer high-temperature EPDM rubber for tube and cover construction. Galvanized ductile iron threaded female union ends are standard. Special cable restraint attachments surround each end to prevent the connector from over-extending due to pressure thrust. A steel body ring encircles the rubber between the spheres to provide stability under pressure.
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 | KFT-1 | KFT-2 | 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) | |
| Mpa Burst Pressure | 2.0(20) | 3.0(30) | |
| Kpa Vacuum | 53.3(400) | 86.7(650) | |
| 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） | Length（mm） | Axial displacement（mm） | Haorizontal isplacement （mm） | Angular deflection(a1+a2)° | |||
| mm | inch | A | B | elongation | compression | ||
| 15 | 0.5 | 180 | 200 | 5 | 10 | 20 | 45° |
| 20 | 0.75 | 200 | 200 | 5 | 10 | 20 | 45° |
| 25 | 1 | 210 | 200 | 5 | 10 | 20 | 45° |
| 32 | 1.25 | 210 | 200 | 5 | 10 | 20 | 45° |
| 40 | 1.5 | 220 | 200 | 5 | 10 | 20 | 45° |
| 50 | 2 | 220 | 220 | 5 | 10 | 20 | 45° |
| 65 | 2.5 | 240 | 240 | 5 | 10 | 20 | 45° |
| 80 | 3 | 285 | 285 | 5 | 10 | 20 | 45° |
| 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. | |||||||
