PTFE Bellows
DEKOMTE manufacture a range of PTFE bellows to be used in special chemical and industrial applications.
Installation Length Type R-LD
| INSTALLATION LENGTH TYPE R-LD | ||||||
| DN | 2 Conv. | 3 Conv. | +/ Conv | ax. Mov. ± / - Conv. | lat. Mov. ± / - Conv. | ang. Mov. ± / - Conv. |
| 25 | 45 | 55 | 12 | 5,5 | 3,5 | 8 |
| 32 | 55 | 65 | 13 | 5,5 | 3,5 | 7,5 |
| 40 | 55 | 70 | 15 | 6 | 4 | 7,5 |
| 50 | 60 | 70 | 16 | 6 | 4 | 6,5 |
| 65 | 60 | 80 | 20 | 6,5 | 5 | 6 |
| 80 | 65 | 90 | 24 | 6,5 | 5 | 6 |
| 100 | 70 | 95 | 25 | 7,5 | 5,5 | 5,5 |
| 125 | 75 | 100 | 25 | 8 | 5,5 | 5 |
| 150 | 75 | 105 | 25 | 8,5 | 5,5 | 4 |
| 200 | 80 | 110 | 25 | 9 | 6 | 3,5 |
| 250 | 90 | 120 | 26 | 10 | 6 | 3,5 |
| 300 | 95 | 125 | 26 | 10 | 6 | 3 |
| 350 | 100 | 125 | 26 | 10,5 | 6 | 3 |
| 400 | 100 | 135 | 26 | 10,5 | 6 | 2,5 |
| 500 | 105 | 140 | 26 | 11 | 6,5 | 2,5 |
| 600 | 105 | 140 | 26 | 11 | 6,5 | 2 |
High Pressure Expansion Joints Type R-HD
PTFE multi-laminated tubes, that ensure an absolute minimum porosity and a homogenous wall-thickness, are transformed again under temperature and pressure to special high-quality bellows, with a high vacuum- and pressure resistance, even during a long period.
Installation Length Type R-HD
| INSTALLATION LENGTH TYPE R-HD R-HD | ||||||
| DN | 2 Conv. | 3 Conv. | +/ Conv | ax. Mov. ± / - Conv. | lat. Mov. ± / - Conv. | ang. Mov. ± / - Conv. |
| 25 | 45 | 55 | 12 | 3 | 2 | 4,5 |
| 32 | 55 | 65 | 13 | 3 | 2 | 4 |
| 40 | 55 | 70 | 15 | 3,5 | 2,5 | 4 |
| 50 | 60 | 70 | 16 | 3,5 | 2,5 | 3,5 |
| 65 | 60 | 80 | 20 | 4 | 3 | 3,5 |
| 80 | 65 | 90 | 24 | 4 | 3 | 3,5 |
| 100 | 70 | 95 | 25 | 4,5 | 3 | 3 |
| 125 | 75 | 100 | 25 | 4,5 | 3 | 3 |
| 150 | 75 | 105 | 25 | 5 | 3 | 2,5 |
| 200 | 80 | 110 | 25 | 5 | 3,5 | 2 |
| 250 | 90 | 120 | 26 | 5,5 | 3,5 | 2 |
| 300 | 95 | 125 | 26 | 5,5 | 3,5 | 1,5 |
| 350 | 100 | 125 | 26 | 6 | 3,5 | 1,5 |
| 400 | 100 | 135 | 26 | 6 | 3,5 | 1,5 |
| 500 | 105 | 140 | 26 | 6,5 | 4 | 1,5 |
| 600 | 105 | 140 | 26 | 6,5 | 4 | 1 |
Available on demand
- Quality certificate according to Pressure Equipment Directive 97/23/EC
- Conductive PTFE
- Double wall bellows with cavity safety drain
- Flanges in 304 Inox (1.4301), 316 Ti (1.4571), with or without certificate according to EN 10204 3.1
- With non-standard connections
- Support rings in Monel 400, Hastelloy C3, Hastelloy C4
- Special fittings to avoid distorsion on longer bellows
- Internal anti-deposit sleeve
- Larger sizes up to ND 900
- Standard flanges ASA 150 or DIN, others on request
P-T Graph
