Double Flange Expansion Joint

Double Flange Expansion Joints are crucial components engineered to absorb thermal expansion, vibration, and misalignment within piping systems. For applications requiring controlled movement, our Double Flange Limited Expansion Joint offers precise axial stroke limitation. Similarly, the Double Flange Limit Expansion Joint provides a robust solution to manage specific movement ranges, preventing over-extension and protecting connected equipment. For maximum axial flexibility in systems with significant thermal growth, the Double Flange Telescopic Expansion Joint is the ideal choice, designed for efficient and reliable performance in demanding environments. Each variant is manufactured with high-grade materials and meticulous attention to detail, ensuring long-term reliability and safety.
The primary function of a Double Flange Expansion Joint is to accommodate axial movement while maintaining a pressure-tight seal. Its robust construction, featuring two integral flanges, simplifies installation and ensures a direct, bolted connection to the pipeline flanges, eliminating the need for additional pipe sleeves or external hardware. This design is particularly advantageous in space-constrained installations. The internal components, including the sealing system and any guiding elements, are engineered for minimal friction and maximum durability, even under continuous cyclic movements. By effectively mitigating stress on pumps, valves, and anchors, the Double Flange Expansion Joint significantly enhances the overall integrity and lifespan of the piping network. Proper selection based on specific pressure, temperature, and movement parameters is essential for optimal performance.

Key Product Parameters

• Design Standards: Compliant with EJMA (Expansion Joint Manufacturers Association) standards, ASME B31.3, and other international codes.
• Pressure Rating: Available in a wide range, typically from vacuum to 150 PSI (1.03 MPa) standard, with higher ratings available upon request.
• Temperature Range: Suitable for continuous operation from -20°F (-29°C) to 250°F (121°C), with special elastomers or constructions for more extreme temperatures.
• Movement Capacity: Designed to absorb axial compression and extension. Specific stroke (e.g., ±1", ±2", ±3") is determined by the convolution design and number of plies.
• Flange Standards: Flanges conform to ANSI B16.5, DIN, JIS, or other specified standards, with drilling to match customer requirements.
• Flow Media: Compatible with water, steam, air, oil, and various chemical media depending on the liner material selection.

Standard Product Dimensions