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PPH Threaded Nominal Pressures

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
* Pressure table equivalent to DIN Standards and Testing at 20°C. Pipes marked with DIN rating (20 Bar) for Europe, Africa and Australasia. Pipes also marked with IRAM rating (16 Bar) for South American market.

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