... 200 to steel pipe.3, good heat resistance. PPR pipe Vicat softening point of 131.5 degrees C. Maximum working temperature up to ... water system. 4, long service life. PPR pipe in working temperature 70 degrees C, working pressure (PN) 1.0MPa conditions, the service life ... 5, easy installation, connection.PPR has good welding properties, pipe, pipe fittings can be used hot-melt and fused connections, easy ...