WATER PIPE WELDING TIME REFERENCE 1、 ACCURATELY MASTER THE HEATING TIMEWATER PIPE WELDING TIME REFERENCE If the heating time ls too short, It is easy to cause uneven heating of the plpe fittings. This leads to diffmculties In matching. the heating time ls too long. The plpe fittings are easy to melt and cause too much colloldal substance to be lost. The heating time selection can refer to the following table. 2、THERE SHOULD BE NO ROTATION WHEN DOCKING Key points for hot-melt connection of plpes and fittings: After the heating time ls reached,Immedlately remove the plpes and fittings from the heating Jacket and heating head at the same time,and Insert them to the marked depth In a stralght line wlthout rotation,and a unlform flange ls formed at the Joint