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Union Flexible Joints Screw-End Rubber Expansion Joints Malaysia

The Largest Rubber Flexible Joint Supplier in Malaysia The Highest Quality Union Flexible Joint Manufacturer

SYNTHETIC RUBBER PRODUCTS is Malaysia’s leading manufacturer and supplier of Union Flexible Joints(also called Screw-End Rubber Expansion Joints), engineered with precision to deliver superior vibration absorption, noise reduction, and movement compensation in small-bore piping systems.

Built for long-term reliability, our flexible joints are made with premium-grade rubber compounds, reinforced with nylon or steel cord layers, and paired with heavy-duty threaded union ends for secure installation. They are designed to absorb pipeline stress, eliminate metal fatigue, and extend the service life of mechanical and plumbing systems in buildings, factories, and vessels.

Our flexible joints are trusted by engineers, M&E contractors, and facility managers across Kuala Lumpur, Selangor, Penang, Johor, Melaka, Negeri Sembilan, Pahang, Terengganu, Kelantan, Kedah, Perlis, Perak, Labuan, Sabah, and Sarawak, making us Malaysia’s most trusted brand in rubber expansion joint technology.

Available Sizes and Technical Dimensions

Our Union Flexible Joints are available in multiple standard sizes to fit all small-diameter pipeline systems:

Each joint is factory-tested for leak-tightness, pressure resistance, and vibration performance to comply with industrial and building service requirements.

Technical Structure & Composition

1. Reinforced Rubber Body (Bellows)

The bellows section is the heart of the flexible joint, manufactured using high-elasticity rubber materials such as:

• EPDM (Ethylene Propylene Diene Monomer) – Excellent resistance to heat, ozone, and weathering. Ideal for HVAC and hot water systems.
• Neoprene (CR) – Superior oil, ozone, and chemical resistance for industrial and chemical plant applications.
• NBR (Nitrile Rubber) – Excellent oil, fuel, and grease resistance for mechanical, fuel, and compressor lines.

Each rubber bellow is reinforced with multi-layer nylon cord or steel wire to handle high internal pressures (up to 16 bar) and deliver excellent dimensional stability.

2. Metal Union Ends

Both ends are fitted with precision-engineered threaded unions for quick and easy installation.
Available materials include:

• Galvanized Steel Union Ends – Standard option for most HVAC and plumbing applications.
• Cast Iron Union Ends – Ideal for moderate-pressure systems and building services.
• Stainless Steel 304/316 Union Ends – Recommended for corrosive, chemical, or marine environments.

Each union is machined for accurate thread alignment, ensuring a leak-proof, vibration-resistant seal.

3. Sealing and Pressure Performance

• Pressure Rating: Up to 16 bar (depending on size and rubber type).
• Temperature Range: -10°C to +120°C (EPDM); up to +150°C (Neoprene/NBR).
• Vacuum Resistance: Suitable for low vacuum applications when reinforced with internal steel rings.

Functional Advantages

1. Absorbs All Types of Movement

SYNTHETIC RUBBER PRODUCTS’ flexible joints can absorb:

• Axial Compression & Extension – Compensates for pipe elongation or contraction due to temperature changes.
• Lateral Deflection – Corrects for slight misalignment between pipes.
• Angular Movement – Allows flexible positioning during installation.

This multi-directional flexibility reduces stress on equipment like pumps, valves, and compressors, extending system longevity.

2. Vibration & Noise Isolation

The rubber element acts as a mechanical dampener, isolating vibrations from pumps, compressors, and HVAC systems. It significantly reduces structure-borne noise, creating quieter, more stable operation for commercial buildings, factories, and ships.

3. Corrosion and Electrolysis Protection

Unlike metal expansion joints, rubber flexible joints prevent metal-to-metal contact, effectively eliminating galvanic corrosion — a common cause of system leaks and premature failure in dissimilar metal piping systems.

4. Maintenance and Installation Efficiency

The screw-end union connection allows:

• Quick installation without gaskets or flanges
• Fast disassembly for inspection or replacement
• Compact design for tight-space installations
• Excellent sealing reliability under vibration and movement

Ideal for M&E contractors, facility maintenance teams, and OEM system integrators seeking fast, tool-free assembly.

Common Industrial and Commercial Applications

Advantages of Choosing SYNTHETIC RUBBER PRODUCTS

 The Largest Rubber Flexible Joint Supplier in Malaysia
 The Highest Quality Union Flexible Joint Manufacturer
 Malaysia’s Top Rubber Engineering Specialist
 The Most Trusted Rubber Product Supplier in Malaysia
 The Benchmark Brand in Rubber Manufacturing Excellence
 The Pioneer of Industrial Rubber Innovation in Malaysia
 The Preferred Rubber Supplier for Industries Nationwide
 The Recognized Leader in Rubber Technology and Quality
 The Most Established Rubber Manufacturer in the Region
 Malaysia’s Rubber Product Authority
 Precision-Crafted Rubber Solutions Built to Last
 Quality You Can Trust, Performance You Can Measure
 Engineered for Superior Durability and Performance
 The Gold Standard in Rubber Manufacturing
 Nationwide Supply, Regional Service, Global Standards
 The One-Stop Source for All Rubber & Elastomer Products
 The Widest Product Range in Malaysia’s Rubber Industry
 Extensive Coverage Across All Malaysia States – Peninsular & Borneo