PPR Transition union female

The PPR female union is a transition fitting that joins PP-R pipe by socket fusion to a male-threaded pipe, valve or appliance through a detachable CW617N brass part with a BSP parallel (G) female thread. Rated PN20 to EN ISO 15874-3, it serves hot and cold water and heating lines and can be disconnected later without cutting the pipe.

The PPR female union from the THERMALINO Eternal line is a transition fitting between a PP-R pipeline and threaded metal pipework or equipment. One end is a socket-fusion end for PP-R pipe; the other is a detachable brass part with a female thread, so the joint can be opened and closed again without cutting the pipe. It is available from Ø20x1/2" to Ø75x2.1/2". The body is made of PP-R, a type 3 polypropylene random copolymer, and the insert is CW617N brass. The fitting conforms to EN ISO 15874-3 and is rated PN20, with an operating temperature of 70 °C and a maximum of 95 °C. Pressure values at other temperatures are given in the technical data sheet. The thread is BSP parallel (G), so the mating male thread must be BSP; a tapered NPT thread is not a match. The union is used wherever a threaded connection may need to come apart: towel radiators and radiators, expansion vessels, pumps, meters, filters and joints that may need repair access. It is also the usual way to move from PP-R to copper or steel pipework, which carry a male BSP adaptor on their side. The PP-R end is socket-fused to the pipe with a fusion welding tool, using the heating times and insertion depths for each diameter. A male thread is then screwed into the brass part and sealed with a suitable thread sealant, without overtightening. It is intended for fusion with THERMALINO PP-R pipes and fittings from the same system.