Flanged Rubber Expansion Joint (Single Sphere) - Vibration Isolator | DELCO
The DELCO Flanged Rubber Expansion Joint (also known as a rubber compensator) is engineered to absorb pipeline vibration, reduce noise, and compensate for thermal expansion or misalignment. Featuring a high-strength Single Sphere rubber body reinforced with nylon cord, it protects sensitive equipment like pumps and chillers. Available in DN25–DN1200 with EPDM, NBR, or PTFE lined bodies and ANSI/DIN/JIS rotating flanges for easy installation in HVAC and water systems.
Features
Designed for pipeline protection, this flexible connector combines superior vibration isolation with high burst pressure resistance:
✅Superior Vibration & Noise Absorption
The high-elasticity rubber sphere acts as a dampener, effectively isolating mechanical vibration and noise generated by pumps, compressors, and fans. This prevents stress transmission to the piping system and extends equipment service life.
✅Compensates for Misalignment & Displacement
Engineered to handle multi-directional movement, including axial compression, axial extension, lateral deflection, and angular displacement. This flexibility corrects minor installation misalignments and accommodates thermal expansion/contraction.
✅High-Pressure Reinforced Body
The rubber body is constructed with multiple layers of high-strength nylon tire cord fabric (not just cotton), ensuring a high bursting pressure (Safety Factor 3:1) and stability under working pressures of PN10, PN16, or PN25.
✅Versatile Rubber Materials (EPDM/NBR)
We offer specific rubber compounds for different media: EPDM for hot water, steam, and weathering resistance; NBR for oil and hydraulic fluids; and CR (Neoprene) for seawater applications. Inner PTFE lining is available for aggressive chemicals.
✅Rotating Flanges for Easy Installation
Equipped with floating (rotating) flanges in Carbon Steel (Galvanized/Painted) or Stainless Steel. The rotating design allows for easy bolt hole alignment during installation, significantly reducing labor time on site.
Key Application Fields
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Oil & Gas
DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines. -
Chemical & Petrochemical
DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely. -
Power Generation
DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants. -
Food & Pharmaceutical
DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity. -
Water & Wastewater
Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability. -
HVAC & District Heating
DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.
Browse our case studies or talk directly with our engineers to discuss your application.
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