... : 1.25MPa, 1.6MPa ISO9001:2008, ISO14001 pe-rt pipe systemsFeatures:Material: PE, RT Sizes: 20mm to 32mmPressure Rating: 1.25MPa, 1 ... : more than 50 years under proper usePE-RT Underground heating pipe NameWorking PressureSizesPE-RT S5 1.25MPa20*2.025*2.332*2 ... .9 S4 1.6MPa20*2.3S20 Coupling pe-rt pipe systems ...