Henan Lianghe Pipeline Equipment Co.,Ltd
Henan Lianghe Pipeline Equipment Co.,Ltd
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Factory Custom Handmade End Face Full sealed ANSI Flange Flexible Rubber Expansion Joint
An "end face fully sealed rubber expansion joint," also known as a "full face flange rubber expansion joint" or "large flanged flexible rubber joint," is a type of flexible connector used in piping systems.
Its key characteristic is that the rubber sealing face extends fully to the outer edge of the flange, creating a complete seal across the flange surface.
Key Features:
Full Face Seal: The rubber material of the expansion joint is molded to cover the entire flange face. This ensures a tighter, more reliable seal compared to designs where the rubber only contacts the inner part of the flange.
Integrated Design: The rubber bellow and the full face flange gasket are often designed as a single, integrated unit. This enhances the seal and prevents the rubber from being pulled away from the flange, especially under high pressure.
High Pressure Resistance: This design is particularly beneficial in applications with higher pressure requirements as the full face contact distributes the pressure more evenly across the flange.
Prevents Pull-Off: The extended rubber face provides a larger contact area, significantly reducing the risk of the expansion joint being pulled off the flange due to pressure or movement.
Flange Material Options: Flanges are typically made from carbon steel, but stainless steel (e.g., 304, 316) is also available for corrosive environments.
Rubber Material Options: Common rubber materials include EPDM, NBR, and neoprene, each offering different levels of resistance to temperature, chemicals, and other media.
Size Range: Available in a wide range of nominal diameters (DN), from smaller sizes up to very large diameters (e.g., DN4000).
End Face Fully Sealed Rubber Joint Connecting Data
| Nominal diameter |
Length (mm) | Axial displacement (mm) |
Lateral displacement (mm) |
Deflection angle | ||
| mm | inch | Elongation | Compression | |||
| 32 | 1 1/4 | 95 | 6 | 9 | 9 | 15° |
| 40 | 1 1/2 | 95 | 6 | 10 | 9 | 15° |
| 50 | 2 | 105 | 7 | 10 | 10 | 15° |
| 65 | 2 1/2 | 115 | 7 | 13 | 11 | 15° |
| 80 | 3 | 135 | 8 | 15 | 12 | 15° |
| 100 | 4 | 150 | 10 | 19 | 13 | 15° |
| 125 | 5 | 165 | 12 | 19 | 13 | 15° |
| 150 | 6 | 180 | 12 | 20 | 14 | 15° |
| 200 | 8 | 210 | 16 | 25 | 22 | 15° |
| 250 | 10 | 230 | 16 | 25 | 22 | 15° |
| 300 | 12 | 245 | 16 | 25 | 22 | 15° |
| 350 | 14 | 255 | 16 | 25 | 22 | 15° |
| 400 | 16 | 255 | 16 | 25 | 22 | 15° |
| 450 | 18 | 255 | 16 | 25 | 22 | 15° |
| 500 | 20 | 255 | 16 | 25 | 22 | 15° |
| 600 | 24 | 260 | 16 | 25 | 22 | 15° |
| 700 | 28 | 260 | 16 | 25 | 22 | 15° |
| 800 | 32 | 260 | 16 | 25 | 22 | 15° |
| 900 | 36 | 260 | 16 | 25 | 22 | 15° |
| 1000 | 40 | 260 | 18 | 26 | 24 | 15° |
| 1200 | 48 | 260 | 18 | 26 | 24 | 15° |
Applications:
End face fully sealed rubber expansion joints are particularly well-suited for:
High-pressure pipelines: Where a reliable and robust seal is critical.
Large diameter pipelines: The full face design provides better stability and sealing for larger connections.
Applications with strict sealing requirements: To prevent leaks of potentially hazardous or valuable media.
Water and wastewater treatment plants
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