Couplings
SH-Teksor Oy stores and markets acid-proof, weldable pipe fittings. We also have acid-proof threaded pipe fittings and flanges.
We also perform demanding special work. We are quick to implement our customers’ individual wishes!
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Resistance of gaskets in different substances
| Nitrile rubber | Teflon | |
|---|---|---|
| Diluted acids | 2 | 1 |
| Concentrated acids | – | 1 |
| Aliphatic hydrocarbons (benzene) | 2 | 1 |
| Aromatic hydrocarbons (benzene, toluene) | – | 1 |
| Chlorinated hydrocarbons (tri, per, tetra) | – | 1 |
| Solvents (acetone) | – | 1 |
| Hydraulic oil on mineral oil base | 100°C | 260°C |
| Hydraulic oil on ester base | – | 1 |
| Animal and vegetable fats (linseed oil, olive oil) | 1 | 1 |
| Water (steam) | 80°C | 260°C |
| Dry heat | 100°C | 260°C |
| Cold | -30°C | -200°C |
Resistance: 1 = Very good, 2 = Good, 3 = Acceptable, – = Poor
Use Teflon only at a constant temperature, max. +260°C.
Variations in temperature may cause leakage due to the different heat expansion of Teflon and steel.