... Pressure degree:PN=1.25,1.6,2,2.5 Nominal outside diameter:20mm-160mm Certificate: ... pipe, S2.5, S3.2 have S2, S4, S5 of pipe pressure level 5 series. Nominal diameter from 20 to ... 40 °C the fluid temperature, S2 to S3.2 series for normal use hot water pipe, tube, the ... Residential pipe system of cold; Industrial water and chemical material conveying, discharge; Pure water, drinking water pipe; Beverage ...