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Single Sphere Rubber Flexible Joint with Floating Flanges – Borneo (Sabah, Sarawak, Brunei) Supply Specialist

Supplier: RUBASIA RUBBERTECH INDUSTRIES

At RUBASIA RUBBERTECH INDUSTRIES, we are a trusted supplier of Single Sphere Rubber Flexible Joints with Floating Flanges across Borneo, covering every industrial hub, small town, and port area in Sabah, Sarawak, and Brunei.

Our EPDM rubber expansion joints are widely used in HVAC, industrial piping, chemical plants, marine systems, water supply, and plumbing. Designed with a spherical single-arch rubber body and rotating (floating) flanges, these joints ensure flexibility, vibration absorption, noise reduction, and compensation for thermal expansion or contraction.

We serve all locations, from major cities to small rural towns:

• Sabah towns: Kota Kinabalu, Sandakan, Tawau, Lahad Datu, Semporna, Keningau, Ranau, Kudat, Papar, Beaufort, Tenom, Sipitang, Kota Belud, Tuaran, Penampang, Putatan, Kuala Penyu, Bongawan, Membakut, Nabawan.
• Sarawak towns: Kuching, Miri, Sibu, Bintulu, Limbang, Kapit, Sri Aman, Betong, Sarikei, Mukah, Serian, Bau, Lundu, Simunjan, Kanowit, Song, Marudi, Lawas, Belaga.
• Brunei towns: Bandar Seri Begawan, Kuala Belait, Seria, Tutong, Bangar, Sengkurong, Jerudong, Gadong.

From oil & gas projects in Miri and Bintulu, shipyards in Kota Kinabalu and Sandakan, HVAC systems in Bandar Seri Begawan, to water treatment plants in Kuching and Sibu—our rubber flexible joints are the trusted solution.

Technical Specifications

• Sizes: DN40 (1-1/2”) to DN600 (24”)
• Rubber Material: EPDM (excellent resistance to heat, steam, mild chemicals, and ozone)
• Flange Standards: Table E, JIS 10K, ANSI 150, PN16
• Flange Material Options: Mild Steel, Stainless Steel 304 (SS304)
• Design: Single sphere body reinforced with nylon cord + steel wire
• Temperature Range: -20°C to +120°C
• Pressure Rating: Up to 16 bar (depending on size & flange class)
• Movements Allowed:
  • Axial Compression: up to 25 mm
  • Axial Extension: up to 15 mm
  • Lateral Deflection: up to 30 mm
  • Angular Deflection: up to 20°

Key Product Features – Detailed Breakdown

 Single Sphere Arch Design

• Maximizes flexibility in multiple directions (axial, lateral, angular).
• Compact design saves installation space compared to double-sphere joints.

 Floating Flanges (Vanstone Type)

• Flanges rotate independently for easy alignment during installation.
• Eliminates flange drilling mismatch problems.
• Reduces labor cost and installation time.

 Noise & Vibration Absorption

• Rubber body isolates vibration from pumps, compressors, and HVAC fans.
• Reduces noise transmission into buildings and ship compartments.

 Thermal & Pressure Movement Compensation

• Expands and contracts with pipeline temperature changes.
• Prevents stress on pumps, valves, and pipe systems.

 Reinforced Strength & Safety

• Nylon cord reinforcement prevents elongation under pressure.
• Internal steel rings increase burst pressure resistance.

 Corrosion Resistance

• EPDM rubber resists water, seawater, mild acids, alkalis, ozone, and UV.
• SS304 flange option for marine & offshore projects.

How It Works in Real Applications

When installed between two flanged pipes, the rubber joint flexes naturally to absorb any pipeline movement. The floating flanges rotate freely, allowing bolt holes to align without stress. As the system operates, the joint absorbs thermal expansion, vibration, and pump pulsation, protecting the pipeline and equipment from cracks, leaks, or early failure.

Applications Across Sabah, Sarawak & Brunei

1. HVAC & Building Systems

• Installed in shopping malls, airports, hospitals, hotels, and factories in Kota Kinabalu, Kuching, Bandar Seri Begawan, Miri, Sibu.
• Reduces vibration from chillers, pumps, and cooling towers.

2. Water Supply & Wastewater Treatment

• Used in municipal and private water systems in Sandakan, Tawau, Bintulu, Limbang, Sri Aman, Tutong.
• Absorbs water hammer and pipeline stress in sewage & drainage systems.

3. Industrial Plants & Power Stations

• Applied in palm oil mills, petrochemical plants, chemical factories, power plants in Lahad Datu, Kapit, Mukah, Sarikei, Lawas, Jerudong.
• Withstands hot water, mild steam, and chemical transfer.

4. Marine & Offshore Applications

• Installed in ship engine rooms, offshore rigs, and port facilities in Semporna, Kudat, Sipitang, Kuala Penyu, Kuala Belait.
• Resistant to seawater and vibration from marine engines.

5. General Plumbing & Sanitary Systems

• Found in schools, hospitals, and government buildings in Ranau, Tenom, Beaufort, Bau, Simunjan, Gadong.

Step-by-Step Installation Guide

1. Preparation – Inspect the joint, flanges, and bolts before installation.
2. Pipe Alignment – Ensure piping is aligned; floating flanges allow minor adjustments.
3. Insert Gaskets (if required) – For extra sealing, insert compatible flange gaskets.
4. Bolt Tightening – Tighten bolts gradually and crosswise, not one side at a time.
5. Avoid Overstretching – Do not exceed movement limits (axial, lateral, angular).
6. Support Heavy Piping – Use pipe supports/hangers to prevent joint overloading.
7. Pressure Test – Increase system pressure gradually and check for leaks.
8. Maintenance – Inspect periodically for wear, cracks, or loosening bolts.

Advantages Over Conventional Joints

• Faster installation due to floating flanges (vs. fixed flange type).
• Longer service life due to EPDM rubber reinforcement.
• Withstands both positive & negative pressure.
• Suitable for freshwater, seawater, air, and mild chemicals.
• Reduces need for pipe realignment during installation.

Why RUBASIA RUBBERTECH INDUSTRIES?

• Local stock available in Sabah, Sarawak & Brunei.
• Direct delivery to all towns (big & small) across Borneo.
• Multiple flange standards (ANSI, JIS, PN, Table E).
• Options for Mild Steel & SS304 flanges.
• Trusted supplier for HVAC contractors, water utilities, marine shipyards, oil & gas industries.
• Technical support & after-sales service.