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Union Type Rubber Flexible Joints | Union Rubber Bellow – RUBASIA RUBBERTECH INDUSTRIES

RUBASIA RUBBERTECH INDUSTRIES is a leading supplier of Union Type Rubber Flexible Joints, also known as Union Rubber Bellows or Rubber Expansion Joints, across Borneo regions: Sabah, Sarawak, and Brunei.

Our union rubber joints are manufactured with high-grade vulcanized rubber reinforced with multi-layer cord fabric and equipped with precision-machined threaded metal union ends. They are engineered to absorb pipe vibration, water hammer, thermal expansion, and misalignment, ensuring the longevity and reliability of piping systems in industrial, commercial, and infrastructure projects.

Available Sizes:

• 1/2” (15mm)
• 3/4” (20mm)
• 1” (25mm)
• 1-1/4” (32mm)
• 1-1/2” (40mm)
• 2” (50mm)
• 2-1/2” (65mm)
• 3” (80mm)

 

Technical Features of Union Rubber Flexible Joints

🔹 Material Construction:

• High-strength EPDM, NBR, or Neoprene rubber options (depending on media).
• Cord fabric reinforcement for extra pressure resistance.
• Threaded galvanized steel, carbon steel, or stainless steel union ends for durability.

🔹 Performance Characteristics:

• Temperature Range: -20°C to +120°C (depending on rubber type).
• Pressure Rating: Standard PN10/PN16, higher ratings available on request.
• Movement Absorption:
  • Axial compression/elongation: ±10mm to ±25mm
  • Lateral displacement: up to ±20mm
  • Angular deflection: up to 15°

🔹 Durability & Safety:

• Excellent corrosion and chemical resistance (depending on rubber grade).
• Tested for leak-proof and vibration isolation performance.
• Designed according to international piping standards.

 

How Union Rubber Bellows Work

✔ Vibration & Noise Control: Rubber joints act as shock absorbers between pumps, chillers, compressors, and pipelines, minimizing vibration transfer.
✔ Movement Compensation: They absorb thermal expansion and contraction, reducing pipe stress.
✔ Pipe Misalignment Relief: Flexible design corrects minor installation misalignments.
✔ System Protection: Prevents pipeline cracks, leaks, and anchor failures caused by stress build-up.
✔ Quick Installation: Union ends allow fast connection and disconnection without special tools.

 

Applications in Sabah, Sarawak, Brunei

Our Union Rubber Expansion Joints are widely installed in:

 

Industrial Applications

• Pumping stations (municipal & industrial)
• Oil & gas refineries (Sarawak, Sabah offshore, Brunei onshore)
• Petrochemical plants (Bintulu, Miri, Labuan support industries)
• Food & beverage processing plants (Kuching, Kota Kinabalu, Brunei food industries)

 

HVAC & Building Services

• Air conditioning systems in hotels (Kota Kinabalu, Miri, Bandar Seri Begawan)
• Chillers and boilers in shopping malls (Imago Mall, Suria Sabah, The Spring Kuching, Times Square Brunei)
• Fire-fighting pipelines in commercial towers (Sarawak Energy HQ, Sabah State buildings, Brunei ministries)

 

Marine & Offshore Applications

• Ship engine cooling systems in Labuan, Miri, Sandakan shipyards
• Offshore oil platforms in Brunei waters and Sarawak deepwater projects
• Fishing ports in Semporna, Kudat, Kota Belud, Mukah

 

Water & Wastewater Treatment

• Water treatment plants in Kuching, Sibu, Bintulu, Kota Kinabalu
• Sewage pumping stations in Miri, Sandakan, Seria, Tutong
• Rural water supply systems in Beaufort, Sipitang, Kapit, Betong, Limbang, Nabawan

 

RUBASIA Rubber Flexible Joint Supply Coverage in Borneo

We deliver Union Type Rubber Flexible Joints to every major and small town in Sabah, Sarawak, and Brunei:

 

Sabah (All Major & Small Towns):

Kota Kinabalu, Sandakan, Tawau, Lahad Datu, Keningau, Semporna, Papar, Beaufort, Sipitang, Kudat, Kota Belud, Ranau, Tuaran, Penampang, Putatan, Tambunan, Kuala Penyu, Tenom, Beluran, Telupid, Nabawan, Tongod.

 

Sarawak (All Major & Small Towns):

Kuching, Miri, Sibu, Bintulu, Limbang, Sarikei, Kapit, Sri Aman, Mukah, Betong, Serian, Marudi, Lawas, Simunjan, Dalat, Daro, Kanowit, Belaga, Pakan, Lubok Antu, Julau, Song, Sebauh, Asajaya, Kabong, Matu, Tatau.

Brunei (All Districts & Towns):

Bandar Seri Begawan, Kuala Belait, Seria, Tutong, Bangar, Jerudong, Sengkurong, Lumut, Kiulap, Berakas, Gadong.