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🏭 Single Bellow Flexible Joint | Flange End (DN40 – DN600)

The Largest Rubber Flexible Joint Supplier in Malaysia

The Highest Quality Union Flexible Joint Manufacturer – SYNTHETIC RUBBER PRODUCTS

SYNTHETIC RUBBER PRODUCTS is recognized as Malaysia’s leading manufacturer and supplier of industrial rubber flexible joints, offering the most comprehensive range of Single Bellow Flange End Expansion Joints from DN40 (1½”) up to DN600 (24”).

Our Single Arch Rubber Expansion Joints are precision-engineered to absorb vibration, isolate noise, reduce mechanical stress, and compensate for thermal movement in piping systems. Designed to withstand abrasive media, high pressure, and temperature fluctuations, these joints are widely installed in waterworks, chemical plants, oil refineries, shipyards, HVAC systems, and mining pipelines across Malaysia’s key industrial zones.

 

⚙️ Product Description

The Single Bellow Flexible Joint (Flange End Type) features a one-arch molded elastomer body reinforced with multiple layers of nylon, polyester, or steel wire cord for superior tensile strength.
Each joint includes integral rubber flanges or steel backing flanges to ensure tight sealing and easy connection with pipeline flanges (ANSI, JIS, or PN standard).

The single arch configuration provides:

• Greater movement range compared to multiple bellow types
• Excellent flexibility for axial, lateral, and angular deflection
• Longer service life due to uniform stress distribution

 

🧪 Material Options

SYNTHETIC RUBBER PRODUCTS manufactures Single Bellow Flexible Joints using premium-grade elastomers, custom-selected for your application:

Material Type	Description	Recommended For
EPDM (Ethylene Propylene Diene Monomer)	High resistance to hot water, steam, and mild chemicals	HVAC, water systems, cooling lines
NBR (Nitrile Rubber)	Excellent oil, fuel, and hydrocarbon resistance	Oil & gas, fuel transfer, petrochemical
Neoprene (CR)	Weather, ozone, and flame resistant	Marine, shipbuilding, outdoor systems
Natural Rubber (NR)	Superior flexibility and abrasion resistance	Slurry, sand, and mining pipelines
Viton / FKM (Optional)	Chemical and high-temperature resistance	Acidic or aggressive media lines

🔩 Technical Specifications

Parameter	Specification
Size Range	DN40 (1½”) to DN600 (24”)
Pressure Rating	Up to 16 bar (PN16)
Temperature Range	-20°C to +120°C (material dependent)
Vacuum Resistance	Up to -600 mmHg
Movement Capability	Axial ±20mm, Lateral ±15mm, Angular ±10°
End Connection	Fixed flange (Carbon Steel / Stainless Steel)
Reinforcement	Nylon / Polyester / Steel Cord Layers
Safety Feature	Optional Tie Rod Assemblies for Overextension Protection

💡 Key Features

✅ Single-arch molded body for compact design and high movement capability
✅ Integral rubber flanges ensure secure, leak-free sealing under pressure
✅ Multiple reinforcement layers for excellent pressure resistance and tensile strength
✅ Optional control rod units to prevent overextension during operation
✅ Chemical and corrosion resistant elastomers suitable for harsh environments
✅ High vibration and noise absorption to protect pumps, valves, and pipeline integrity
✅ Manufactured to ISO and ASTM international quality standards
✅ Long lifespan and low maintenance cost

 

🔧 Applications in Malaysia

SYNTHETIC RUBBER PRODUCTS’ Single Bellow Flange End Rubber Flexible Joints are trusted in:

• 🏗️ Building & HVAC Systems – to absorb vibration in chillers, pumps, and cooling towers
• 🏭 Industrial Plants & Refineries – for handling oil, gas, and steam pipelines
• 🚢 Marine & Offshore Installations – corrosion-resistant for ship piping and ballast systems
• 💧 Water & Wastewater Treatment – to compensate movement in treatment and pumping stations
• ⛏️ Mining & Quarry Slurry Lines – withstands abrasive slurry and tailings flow
• 🔥 Power Generation Facilities – used in boiler feed, condensate, and exhaust lines
• ⚗️ Chemical Processing Plants – safe for acid, alkali, and solvent pipelines
• 🚰 Municipal Infrastructure Projects – ensures pipeline flexibility for long-distance water supply

Our products are supplied and installed across Malaysia’s major industrial regions including:
Johor Bahru, Pasir Gudang, Melaka, Seremban, Nilai, Shah Alam, Klang, Petaling Jaya, Kuala Lumpur, Rawang, Ipoh, Taiping, Penang, Bukit Mertajam, Alor Setar, Kangar, Kota Bharu, Kuala Terengganu, Kuantan, Temerloh, Bentong, Kota Kinabalu, Sandakan, Tawau, Lahad Datu, Kuching, Miri, Bintulu, Sibu, and Labuan.

 

🧰 Installation Guidance

1. Ensure flange faces are clean and parallel before installation.
2. Align the pipe system without forcing the joint into position.
3. Do not exceed the designed movement range (axial, lateral, or angular).
4. Tighten flange bolts gradually in a diagonal sequence to ensure uniform pressure.
5. When using control rods, maintain correct gap clearance for pressure and movement compensation.
6. Avoid exposure to sharp objects, solvents, or excessive heat during installation.

 

📦 Available Sizes

Nominal Diameter	Inch	Model Type	End Connection
DN40	1½”	Single Bellow	Flange End
DN50	2”	Single Bellow	Flange End
DN80	3”	Single Bellow	Flange End
DN100	4”	Single Bellow	Flange End
DN150	6”	Single Bellow	Flange End
DN200	8”	Single Bellow	Flange End
DN300	12”	Single Bellow	Flange End
DN400–DN600	16”–24”	Custom Design	Flange End

(Custom sizes available upon request.)

 

🌏 Why Choose SYNTHETIC RUBBER PRODUCTS

• 🇲🇾 The Largest Rubber Flexible Joint Supplier in Malaysia
• 🏭 The Highest Quality Union Flexible Joint Manufacturer
• 🔬 Precision manufacturing with ISO-certified processes
• ⚙️ Wide range of rubber compounds and design options
• 🚚 Nationwide distribution across Peninsular Malaysia, Sabah, and Sarawak
• 👷 Technical consultation, design customization, and after-sales support
• 🧩 Decades of industrial experience serving oil & gas, construction, and utilities sectors