Rubber Expansion Joints
Flex-Weld rubber expansion joints deliver proven performance in vibration absorption, noise reduction, and thermal movement compensation for industrial piping systems. Available in a wide variety of materials and configurations—from single-sphere to triple-sphere designs with floating flanges or cable ties—these joints are engineered to carry diverse media in pressure or vacuum service.
Materials include Neoprene, EPDM, and PTFE, offering excellent resistance to temperature, chemicals, and abrasion. With both standard and custom sizes, Flex-Weld provides unmatched flexibility to meet your exact system requirements. Our in-house molding, ducting assembly, and proprietary offshore sourcing allow for economical production and rapid turnaround.
Whether you need a standard replacement or a fully custom assembly, Keflex™ engineers will design, fabricate, and cross-reference any product to ensure a precise fit and long-term reliability.
Features & Benefits
– Wide range of materials including Neoprene, EPDM, Nitrile, Butyl, Hypalon®, and PTFE for broad chemical and temperature compatibility
– Absorbs vibration, noise, and shock, protecting piping, pumps, and mechanical equipment from fatigue and failure
– Compensates for axial, lateral, and angular movement, minimizing stress from thermal expansion or misalignment
– Handles both pressure and vacuum service, ensuring reliable performance under fluctuating operating conditions
– Available in single-, double-, and triple-sphere configurations for greater flexibility and movement capability
– Floating flanges, threaded, and cable-tied options to accommodate various system designs
– Custom lengths, reducers, and transitions available to meet unique installation requirements
– Compact, space-saving design simplifies installation and maintenance in congested piping layouts
– In-house molding and proprietary offshore manufacturing provide cost-effective and high-quality production
Application
– Absorbs vibration and noise from pumps, compressors, and mechanical equipment
– Compensates for axial, lateral, and angular pipe movement due to thermal expansion or misalignment
– Protects piping systems and equipment from pressure surges and water hammer
– Reduces stress on piping, anchors, and solid joints in HVAC and industrial systems
– Ideal for both pressure and vacuum service in piping systems
– Suitable for tight installations where space savings are critical
Markets Served
– HVAC and Building Mechanical Systems
– Water and Wastewater Treatment Facilities
– Power Generation and Utilities
– Industrial and Chemical Processing
– OEM Pump, Valve, and Compressor Manufacturers
– Marine, Shipbuilding, and Offshore Systems
Rubber Expansion Joints Submittals (downloadable PDFs)
Single sphere – EPDMNeed a custom flexible metal solution?
If your system requires non-standard movement, pressure, or connection configurations, Flex-Weld engineers can design and fabricate custom expansion joints, metal bellows, and flexible hose assemblies to your exact specifications. We’ll tailor materials, end fittings, ply count, and cycle life to meet your application—whether it’s HVAC, power generation, chemical processing, or aerospace.
