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Union Type Rubber Flexible Joints | Union Rubber Bellows – RUBASIA RUBBERTECH INDUSTRIES (Borneo: Sabah, Sarawak, Brunei)

 

RUBASIA RUBBERTECH INDUSTRIES is a trusted supplier of Union Type Rubber Flexible Joints, also known as Union Rubber Bellows or Rubber Expansion Joints, throughout Borneo – Sabah, Sarawak, and Brunei.

These union rubber joints are essential components for piping systems in industrial, commercial, marine, and building services applications. Manufactured with high-quality vulcanized rubber reinforced with cord fabric and fitted with precision-threaded union metal ends, they provide reliability, flexibility, and long service life.

 

By absorbing vibration, shock, noise, and thermal expansion, they extend the lifespan of pipes, pumps, chillers, and mechanical systems, ensuring safe and efficient operation.

 

Product Size Range (Standard Stock)

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

(Custom sizes available on request for larger diameters.)

 

Technical Specifications – Union Rubber Flexible Joint

Parameter	Details
Material (Rubber Body)	EPDM, NBR, Neoprene, Natural Rubber (depending on fluid compatibility)
Reinforcement	High tensile Nylon cord fabric + optional wire reinforcement
Union End Material	Galvanized Steel / Carbon Steel / Stainless Steel (SS304, SS316)
Temperature Range	-20°C to +120°C (special rubber types available for higher range)
Pressure Rating	PN10 / PN16 standard (custom higher ratings available)
Movements Absorbed	Axial compression ±10–25mm, Lateral displacement ±20mm, Angular deflection 15°
Applications	HVAC, pumps, compressors, blowers, water supply, marine, oil & gas, fire-fighting systems

Key Features of RUBASIA Union Rubber Bellows

✅ Absorbs Vibration & Shock – Protects sensitive equipment such as pumps, compressors, and chillers.
✅ Noise Reduction – Reduces noise transmission across HVAC and water pipelines.
✅ Handles Pipe Misalignment – Flexible enough to accommodate small installation errors.
✅ Thermal Expansion Relief – Prevents stress from heat-induced pipe expansion and contraction.
✅ Leak-Proof Connection – Threaded union ends ensure tight, secure joints.
✅ Corrosion Resistance – Stainless steel and EPDM options available for chemical and seawater resistance.
✅ Quick Installation – Union type design allows for easy removal and maintenance.

 

Common Applications in Borneo Markets

 

🔧 Industrial Applications

• Power plants (Mukah, Bintulu, Lahad Datu)
• Petrochemical industries (Miri, Bintulu, Brunei Seria oilfields)
• Factories & OEM systems (Kota Kinabalu, Kuching, Sibu)
• Pulp & paper mills (Sarikei, Kapit)

 

❄️ HVAC & Building Services

• Chilled water systems in hotels & malls (Imago Mall KK, The Spring Kuching, Times Square Brunei)
• Cooling towers in commercial complexes (Bandar Seri Begawan, Sandakan, Miri)
• Fire-fighting pipelines in hospitals, airports, and office towers (Sibu, Kota Kinabalu, Limbang, Kuala Belait)

 

⚓ Marine & Offshore Applications

• Ship cooling water pipelines (Labuan shipyard, Sandakan dock, Miri port)
• Offshore rigs and FPSOs (Brunei Shell, Sarawak deepwater fields)
• Fishing vessels and trawlers (Semporna, Kudat, Mukah)

 

💧 Water & Wastewater Treatment

• Municipal water supply systems (Kuching, Sibu, Miri, KK)
• Rural water distribution (Beaufort, Tenom, Kapit, Lawas, Betong)
• Sewage treatment plants (Seria, Tutong, Limbang, Papar)

 

Step-by-Step Installation Guide – Union Rubber Flexible Joints

1. Preparation:
   • Ensure pipe ends are clean, free from burrs, rust, or debris.
   • Check that union threads are compatible with system piping.
2. Alignment:
   • Align piping to minimize stress before installing the joint.
   • Do not stretch, compress, or twist the joint beyond its design limits.
3. Connection:
   • Hand-tighten the union joint into position.
   • Use a wrench for final tightening but avoid over-torque to prevent thread damage.
4. System Testing:
   • Gradually pressurize the system.
   • Check for leaks at union connections.
5. Maintenance:
   • Inspect periodically for cracks, bulging, or deterioration.
   • Replace if signs of fatigue or chemical attack are visible.

 

RUBASIA Supply Network in Borneo (Sabah, Sarawak, Brunei)

We deliver Union Type Rubber Flexible Joints to all towns and cities in:

Sabah

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

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

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