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 recognized as Malaysia’s premier manufacturer and supplier of Union Flexible Joints, also known as Screw-End Rubber Expansion Joints, Threaded Rubber Joints, or Flexible Rubber Pipe Connectors.
Our flexible joints are engineered with precision-moulded rubber bellows and high-strength metal union ends, designed to provide maximum vibration absorption, noise reduction, and movement compensation in HVAC, plumbing, industrial, and marine piping systems.
With decades of expertise in rubber engineering and fluid handling systems, we are the most trusted brand for clients across Kuala Lumpur, Selangor, Penang, Johor, Melaka, Negeri Sembilan, Perak, Kedah, Pahang, Terengganu, Kelantan, Perlis, Labuan, Sabah, and Sarawak.
Our products are built under strict quality control, adhering to international standards for durability, safety, and performance.
Product Overview
A Union Flexible Joint is a compact rubber expansion connector fitted with threaded metal union ends.
It serves three critical functions in a piping system:
It is ideal for small-diameter pipelines (DN15–DN80) used in building services, water circulation systems, and industrial fluid transfer networks.
Available Models and Dimensions
Nominal Diameter |
Size (Inch) |
Overall Length |
Connection Type |
Standard Pressure |
DN15 |
1/2” |
150 mm |
Screw-End Threaded Union |
10~16 bar |
DN20 |
3/4” |
160 mm |
Screw-End Threaded Union |
10~16 bar |
DN25 |
1” |
165 mm |
Screw-End Threaded Union |
10~16 bar |
DN32 |
1-1/4” |
180 mm |
Screw-End Threaded Union |
10~16 bar |
DN40 |
1-1/2” |
200 mm |
Screw-End Threaded Union |
10~16 bar |
DN50 |
2” |
210 mm |
Screw-End Threaded Union |
10~16 bar |
DN65 |
2-1/2” |
230 mm |
Screw-End Threaded Union |
10~16 bar |
DN80 |
3” |
250 mm |
Screw-End Threaded Union |
10~16 bar |
Temperature Range: -10°C to +120°C (EPDM), up to +150°C (Neoprene/NBR).
Vacuum Rating: Optional internal steel ring reinforcement available for low vacuum applications.
Burst Pressure: ≥ 3x working pressure (factory tested).
Technical Construction
1 Rubber Bellows
Made from reinforced elastomeric compounds for superior flexibility and performance. Available materials:
Each rubber bellow is fabric-reinforced with synthetic nylon or polyester cord and optionally embedded with steel wire for high-pressure performance.
2 Threaded Metal Union Ends
Precision-machined union ends ensure leak-proof and vibration-resistant connections.
Available materials:
The screw-end design enables quick installation and removal without special tools, making it ideal for tight spaces and routine maintenance.
3 Reinforcement & Sealing
Performance Advantages
Absorbs Multi-Directional Movement
Handles axial compression/extension, lateral displacement, and angular deflection, protecting pipelines from stress caused by:
Vibration & Noise Isolation
The rubber element acts as a mechanical cushion, reducing structure-borne vibration and operational noisetransmitted through pumps, chillers, and fans — improving equipment longevity and environmental comfort.
Corrosion Protection
The non-metallic isolation between joints prevents galvanic corrosion and electrolysis, extending service life in mixed-metal piping systems.
Pressure & Temperature Stability
With a rated pressure up to 16 bar, these joints can withstand high fluid velocities and temperature fluctuationswithout loss of performance.
Compact & Maintenance-Free Design
No gaskets or special flanges required.
Compact structure ideal for retrofit projects or space-limited installations such as pump rooms and engine compartments.
Applications Across Malaysia’s Key Sectors
Sector |
Example Applications |
HVAC & Building Services |
Chilled water lines, air handling units, fan coil units, pump discharge, and cooling tower lines. |
Plumbing & Sanitary Systems |
Domestic water pipelines, hot/cold water loops, and pressure pump outlets. |
Industrial Processing Plants |
Oil and chemical transfer lines, process water circulation, and air compressor systems. |
Marine & Offshore |
Seawater cooling systems, ballast water transfer, engine cooling circuits, and bilge systems. |
Fire Protection Systems |
Fire pump connections, sprinkler system lines, and vibration isolation for fire protection piping. |
Power & Utility Plants |
Turbine cooling systems, condensate water lines, and chiller system connections. |
Water Treatment & Waste Systems |
Pump inlet/outlet connections, filtration units, and sludge transfer lines. |
Why Choose SYNTHETIC RUBBER PRODUCTS
We are Malaysia’s most established and innovative rubber engineering specialist, combining technical expertise, material science, and precision manufacturing.
Every joint is factory-tested to meet ISO, BS, and JIS standards for performance reliability, pressure containment, and durability.
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
Engineered for Superior Durability and Performance
The Gold Standard in Rubber Manufacturing
The Rubber Manufacturer with the Widest Product Range
The One-Stop Source for All Rubber & Elastomer Products
Nationwide Supply, Regional Service, Global Standards
Nationwide Supply & Distribution Network
SYNTHETIC RUBBER PRODUCTS proudly delivers nationwide coverage with efficient supply to every Malaysian state and industrial hub:
We ensure fast delivery, consistent stock availability, and technical support across Malaysia for all industries — from building M&E contractors to marine shipyards and industrial facilities.
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