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Clamp-type rubber expansion joints use stainless steel clamps instead of flanges, offering quick-installation via a socket design. They are characterized by low cost, easy assembly and disassembly, and space saving, making them the preferred choice for flexible connections in low-pressure pipelines.
1. Rubber Sphere: Inner rubber (media resistant) + multi-layer cord reinforcement + outer rubber (aging resistant); Material: Natural rubber, EPDM, nitrile rubber.
2. Stainless Steel Clamp: Made of 304/316 stainless steel, it secures the pipe to the sphere, providing a leak-proof seal.
3. Socket Port: Smooth rubber ends that directly fit over the pipe wall without the need for flanges.

Flexible Compensation: The elastic rubber absorbs axial expansion and contraction, lateral misalignment, and angular deflection of the pipeline, resolving issues related to thermal expansion and contraction and installation deviations.
Vibration Reduction and Noise Reduction: Isolates pump/equipment vibration, reducing noise by 20-30dB, protecting the pipeline network and equipment.
Clamp Sealing: The clamp evenly presses against the rubber port, tightly gripping the pipe wall; the higher the pressure, the tighter the seal.
1. Super-fast Installation: Socket and clamp locking, completed in 3 minutes, no flanges/bolts/diameter alignment required.
2. Cost-effective and Material-saving: Flange-free and bolt-free, reducing costs by 30%+.
3. Space-friendly: Short length, no flanged outer edge, suitable for narrow spaces/ceiling pipes.
4. Easy Disassembly and Assembly: Disassembly is simple, just loosen the clamps for maintenance, suitable for frequent repairs/temporary pipes.
5.Reliable Sealing: Fully enclosed ports, uniform clamping force, zero leakage under low pressure.
1. Water Supply/Drainage/Fire Protection: Low-pressure tap water, fire branch pipes, garden sprinkler irrigation pipes.
2. HVAC/Air Conditioning: Central air conditioning circulating water, cooling tower connection pipes.
3. Pump Room/Equipment: Pump inlet and outlet (low pressure), fan/compressor vibration damping connections.
4. Temporary/Maintenance: Temporary pipelines on construction sites, filter/valve locations requiring frequent disassembly and assembly.
5. Municipal/Sewage: Sewage treatment plant chemical dosing pipes, sludge pump low-pressure pipelines.

| serial number | name | Material | quantity |
| 1 | clamp | Q235, 304, 316L | 2 pieces |
| 2 | Inner and outer adhesive layers | IIR、CR、EPDM、NR、NBR | 1 set |
| 3 | skeleton layer | polyester cord | n layers |
| Nominal diameter DN | Installation length L |
Axial elongation (mm) | Axial compression mm |
Radial displacement (mm) | deflection angle(α₁+α₂)° | |
| mm | inch | |||||
| 50 | 2 | 180 | 7 | 10 | 10 | 15 |
| 65 | 2½ | 180 | 7 | 13 | 11 | 15 |
| 80 | 3 | 180 | 8 | 15 | 12 | 15 |
| 100 | 4 | 180 | 10 | 19 | 13 | 15 |
| 125 | 5 | 180 | 12 | 19 | 13 | 15 |
| 150 | 6 | 180 | 12 | 20 | 14 | 15 |
| 200 | 8 | 200 | 16 | 25 | 22 | 15 |
| 250 | 10 | 200 | 16 | 25 | 22 | 15 |
| 300 | 12 | 200 | 16 | 25 | 22 | 15 |
| 350 | 14 | 200 | 16 | 25 | 22 | 15 |
| 400 | 16 | 200 | 16 | 25 | 22 | 15 |
| 450 | 18 | 200 | 16 | 25 | 22 | 15 |
| 500 | 20 | 200 | 16 | 25 | 22 | 15 |
| 600 | 24 | 200 | 16 | 25 | 22 | 15 |
| 700 | 28 | 200 | 16 | 25 | 22 | 10 |
| 800 | 32 | 200 | 16 | 25 | 22 | 10 |
| 900 | 36 | 200 | 16 | 25 | 22 | 10 |
| 1000 | 40 | 200 | 18 | 25 | 22 | 10 |
| 1200 | 48 | 200 | 18 | 25 | 24 | 10 |
| 1400 | 56 | 200 | 20 | 26 | 24 | 10 |
| 1600 | 64 | 200 | 25 | 26 | 26 | 10 |
| 1800 | 72 | 200 | 20 | 26 | 26 | 10 |
| 2000 | 80 | 200 | 20 | 26 | 26 | 10 |