Large Size Full Face Flanged Rubber Expansion Joint Connector
DN1000-DN2000
The Large Size Full Face Flanged Rubber Expansion Joint is a robust flexible connector engineered for demanding piping systems that require superior movement compensation, vibration absorption, and noise reduction. Designed with integral full-face rubber flanges that conform precisely to the bolt pattern of companion pipe flanges, this expansion joint delivers reliable sealing performance across large diameter applications
Delivery
FOB
minimum order
1 piece
Supply Ability
50piece / Month
Country of Origin
China
Stock Time
30Day
Quantity:
US $500.00 - US $10000.00 / piece
Structural Design
The large size full face flanged rubber expansion joint features a streamlined, cylindrical rubber bellows construction with full-faced rubber flanges that are integral with the body of the joint. This design is specifically engineered to compensate for multi-directional movements while maintaining system integrity. The bellows are constructed with a high-grade leak-proof tube, multiple layers of high-strength synthetic cord fabric for reinforcement, and a seamless cover that ensures durability under demanding service conditions.
The large size full face flanged rubber expansion joint features a streamlined, cylindrical rubber bellows construction with full-faced rubber flanges that are integral with the body of the joint. This design is specifically engineered to compensate for multi-directional movements while maintaining system integrity. The bellows are constructed with a high-grade leak-proof tube, multiple layers of high-strength synthetic cord fabric for reinforcement, and a seamless cover that ensures durability under demanding service conditions.
The full-face flanges are molded with uniform thickness across the flange diameter, creating a self-sealing connection when properly clamped to flat-face pipe flanges. This integrated design eliminates the need for separate gaskets, simplifying installation and reducing potential leak paths.
Movement Capabilities
Large size expansion joints accommodate axial, lateral, and angular movements simultaneously, providing comprehensive compensation for thermal expansion, pipe misalignment, and equipment vibration. The bellows design, available with single or multiple arches, enables substantial movement absorption capacities tailored to specific application requirements.
Large size expansion joints accommodate axial, lateral, and angular movements simultaneously, providing comprehensive compensation for thermal expansion, pipe misalignment, and equipment vibration. The bellows design, available with single or multiple arches, enables substantial movement absorption capacities tailored to specific application requirements.
For vacuum applications, internal stainless steel support rings can be incorporated to prevent collapse under negative pressure conditions.
Size Range and Customization
Large size full face flanged rubber expansion joints are available in diameters ranging from DN300 up to DN6000 (approximately 12 inches to 240 inches), with custom dimensions available upon request. Standard installation lengths typically range from 200mm to 400mm, with custom lengths also available to suit specific piping configurations. Flanges can be drilled to conform with DIN, EN, ANSI, AWWA, BS, JIS standards, or special customer specifications.
Large size full face flanged rubber expansion joints are available in diameters ranging from DN300 up to DN6000 (approximately 12 inches to 240 inches), with custom dimensions available upon request. Standard installation lengths typically range from 200mm to 400mm, with custom lengths also available to suit specific piping configurations. Flanges can be drilled to conform with DIN, EN, ANSI, AWWA, BS, JIS standards, or special customer specifications.
Construction Materials
Rubber Body Compounds
The rubber bellows can be manufactured from various elastomers to suit different media and temperature requirements, including:
Rubber Body Compounds
The rubber bellows can be manufactured from various elastomers to suit different media and temperature requirements, including:
EPDM (Ethylene Propylene Diene Monomer) – Suitable for hot water, cooling water, seawater, dilute acids, and alkaline solutions. Operating temperature range from -40°C to +120°C depending on grade-.
NBR (Nitrile Butadiene Rubber) – Recommended for oils, petroleum products, solvents, and compressed air applications.
Neoprene (Chloroprene) – Provides good weather resistance and is suitable for cooling water and slightly oily water service.
NR (Natural Rubber) – Offers excellent abrasion resistance for handling abrasive media.
CSM (Chlorosulfonated Polyethylene) – Provides superior resistance to strong acids, bases, and aggressive chemicals.
Flange Materials
Backing flanges are typically manufactured from carbon steel with shot-blasting and painting as standard treatment. Options include hot-dip galvanized carbon steel, stainless steel, or aluminum, depending on corrosion resistance requirements.
Backing flanges are typically manufactured from carbon steel with shot-blasting and painting as standard treatment. Options include hot-dip galvanized carbon steel, stainless steel, or aluminum, depending on corrosion resistance requirements.
Pressure Ratings
Working pressure capabilities depend on diameter and design configuration. Standard large size expansion joints are available with pressure ratings up to 16 bar, with higher ratings available upon request. For very large diameters, working pressures typically range from 2.5 bar to 10 bar.
Working pressure capabilities depend on diameter and design configuration. Standard large size expansion joints are available with pressure ratings up to 16 bar, with higher ratings available upon request. For very large diameters, working pressures typically range from 2.5 bar to 10 bar.
Key Advantages
The large size full face flanged rubber expansion joint offers significant benefits for critical piping systems:
The large size full face flanged rubber expansion joint offers significant benefits for critical piping systems:
Self-Sealing Design – The full-face rubber flange provides a reliable seal without requiring additional gaskets, reducing installation complexity and potential leak points.
Multi-Directional Movement Compensation – Accommodates axial, lateral, and angular movements simultaneously, protecting connected equipment from stress and strain.
Vibration and Noise Reduction – Effectively dampens mechanical vibration and reduces noise transmission through piping systems.
Electrolysis Prevention – Eliminates galvanic corrosion between dissimilar metals in the piping system.
Compact Design – Simplifies handling and installation in confined spaces while providing substantial movement capability.
Maintenance-Free Operation – The simple, robust construction requires minimal ongoing maintenance.
