| Comparison between Series (S) and Nominal Pressure (PN) DIN 8077:1999 Norm. | ||||
| NP | SDR | S | ||
| 6 | 17.6 | 8.3 | ||
| 10 | 11 | 5 | ||
| 16 | 7.4 | 3.2 | ||
| 20 | 6 | 2.5 | ||
| 25 | 5 | 2 | ||
| Nominal pressure and continual service during 50 years | ||||
| IPS Product | Service Pressure and Working temperature | Maximum resistance to pressure | NP | S |
| IPS Thread Fittings | 18.6 Kgf/cm2 at 20ºC | 120 Kgf/cm2 | 16 | 3.2 |
| IPS Thread | 11.7 Kgf/cm2 at 20ºC | 100 Kgf/cm2 | 10 | 5 |
| 4x4 Plus | 11.7 Kgf/cm2 at 20ºC | 100 Kgf/cm2 | 10 | 5 |
| Pressure Table* | |||||
|---|---|---|---|---|---|
| System | Tube Diameter | Continuous Working Pressure | |||
| IPS Fusion System (Multilayer Tube S3,2) Standard: DIN 8077/IRAM 13470 | 20º C | 70º C | |||
| ½" | 10 Bar | 3.5 Bar | |||
| ¾" | 10 Bar | 3.5 Bar | |||
| 1" | 10 Bar | 3.5 Bar | |||
| 1¼" | 10 Bar | 3.5 Bar | |||
| 1½" | 8 Bar | 3 Bar | |||
| 2" | 8 Bar | 3 Bar | |||
| 2½" | 4 Bar | 2.5 Bar | |||
| 3" | 4 Bar | 2.5 Bar | |||
| 4" | 4 Bar | 2.5 Bar | |||
