... 95 degrees, which can meet the standard of building drainage water system requirements.4 and long service life. Pp-r pipe in ... panels and radiant heating system,Three, can be directly drinkable water supply system,4 and the central air conditioning system (concentration),5, transport or ... .N 1.0 ~ 160 MPa pipes, fittings, Used for hot water system PN2.0 MPa experiment.it choose pipe, tube.3 and ...