Selection criteria
| Connection | Metal - Metal | Plastic - Plastic | Metal - Plastic | all materials | High tension-proof / Not tension-proof |
|---|---|---|---|---|---|
| PEWOGRIP | X | High tension-proof | |||
| PEWOPLASTGRIP | X | High tension-proof | |||
| PEWOCOMBIGRIP | X | High tension-proof | |||
| PEWOFLEX | X | X | X | X | Not tension-proof |
| PEWOREP | X | X | X | X | Not tension-proof |
| Clamping range | OD (mm) | Number of couplings | Material / Quality | Housing wall thickness (T) |
|---|---|---|---|---|
| UNI-Coupling | 21 – 47.5 47.5 – 172 180 – 4000 | 7 15 Customised | Standard A4 (1.4571) | T = 0,8 / 1 mm T = 1 / 1,2 / 1,5 / 2 / 3 mm T = 1 / 2 / 3 / 5 mm |
| Sealing material | EPDM > 21 to 172 mm | EPDM > 180 mm | NBR | Viton |
|---|---|---|---|---|
| Application temperature | -30 °C to +125 °C | -30 °C to +80 °C | -20 °C to +80 °C | -20 °C to +200 °C |
| Medium | Drinking water / wastewater / air / compressed air (oil-free) / solids | Drinking water / wastewater / air / compressed air (oil-free) / solids | Water / flammable gases / compressed air / oil / fuel and other hydrocarbons | Mineral oils / aliphatic /aromatic hydrocarbons /chlorinated hydrocarbons / concentrated and diluted acids, weak alkalis |
| Steel quality | Housing | Closure | Bolts | Anchoring ring |
|---|---|---|---|---|
| A4 | 1.4571 / 316 Ti | 1.4571 / 316 Ti | A4 – 80 / 316 Ti | 1.4310 / 301 |