PTFE Lined Expansion Joints/Bellows
PTFE Lined Expansion Joints/Bellows
In many applications, equipment and pipework moves, vibrates and expands. Expansion joints are employed to accommodate this movement.
In the certain industries, such as Chemical, Fertilizer and Pharmaceutical sectors, which process high corrosive substances, the expansion joints need to be chemically resistant.
Our PTFE lined expansion joints are ideal for applications where there is a need to compensate lateral and axial expansions/vibrations, and withstand acids and temperatures.
Our products are highly reliable, and are deployed in chemical applications up to 10 barg (150 psi) and/or up to 200°C (392°F).
Flange Material Options
- Ductile Iron - GGG40.3 / ASTM A395
- Cast Steel - ASTM A216 Gr.WCB
- Steel Fabrication - ASTM A234 Gr.WPB with Flanges as per ASTM A 105 / IS 2062
- ASTM A312 TP SS316/316L/304, Stainless Steel
Bellows Material Options
- PTFE – ASTM D 4895
- Anti-Static PTFE
- Glass Filled Teflon (GFT)
Industry Standard PTFE Lined Pipe Sizes
| Size | D | R | n x d | 2 Convolutions | 3 Convolutions | T | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | +/- | Ang. | Par. | L | +/- | Ang. | Par. | |||||
| 25 | 50 | 160 | 4 x M12 | 55 | 7 | 8 | 4 | 70 | 12 | 10 | 6 | 2.2 |
| 40 | 65 | 179 | 4 x M12 | 55 | 8 | 8 | 4 | 70 | 12 | 9 | 6 | 2.3 |
| 50 | 85 | 204 | 4 x M16 | 60 | 11 | 6 | 6 | 75 | 19 | 8 | 9 | 2.3 |
| 65 | 100 | 230 | 4 x M16 | 60 | 11 | 6 | 6 | 80 | 19 | 8 | 9 | 2.5 |
| 80 | 120 | 242 | 4 x M16 | 65 | 13 | 6 | 7 | 90 | 25 | 8 | 12 | 2.8 |
| 100 | 140 | 288 | 8 x M16 | 70 | 15 | 5 | 8 | 95 | 25 | 7 | 12 | 3 |
| 150 | 190 | 340 | 8 x M16 | 75 | 16 | 4 | 8 | 105 | 28 | 6 | 14 | 3.2 |
| 200 | 260 | 419 | 8 x M20 | 80 | 17 | 4 | 8 | 110 | 28 | 5 | 14 | 3.6 |
| 250 | 310 | 282 | 12 x M20 | 90 | 19 | 3 | 9 | 120 | 30 | 5 | 15 | 4 |
| 300 | 360 | 535 | 12 x M20 | 95 | 19 | 3 | 9 | 125 | 30 | 5 | 15 | 4.5 |
Note: all dimensions in mm unless otherwise stated
Standard Flora Alternate PTFE Lined Pipe Sizes
| Nominal Size | L | ID | C | ||
|---|---|---|---|---|---|
| NB | mm | 3 con. | 5 con. | ||
| 25 | 25 | 55 | 83 | 24 | 48 |
| 40 | 40 | 55 | 105 | 38 | 68 |
| 50 | 50 | 75 | 110 | 50 | 87 |
| 65 | 65 | 86 | 110 | 60 | 100 |
| 80 | 80 | 100 | 120 | 77 | 117 |
| 100 | 100 | 100 | 120 | 95 | 151 |
| 150 | 150 | 150 | 150 | 150 | 203 |
| 200 | 200 | 150 | 155 | 195 | 256 |
| 250 | 250 | 128 | 160 | 245 | 311 |
| 300 | 300 | 133 | 165 | 295 | 365 |
| 350 | 350 | 134 | 170 | 330 | 415 |
| 400 | 400 | 190 | - | 370 | 475 |
| 450 | 450 | 190 | - | 425 | 515 |
| 500 | 500 | 200 | - | 473 | 565 |
| 600 | 600 | 210 | - | 576 | 650 |
- Size Range: 25mm NB TO 600mm NB (1" to 6")
- Length: 100mm – 300mm (4" to 12")
- Temperature: up to 200°C (392°F)
- Pressure: 10 barg (150 psi)
Contact us today for expert solutions in PTFE-lined pipes, valves, columns, and precision components.
