PPR pipe fitting is specially for water supplying piping system,the connection of the fitting with the pipe has 3 different types.
1.gluing type.
2.welding type.
3.screwing type.
Based on the function,we divided the ppr pipe fitting mould into below 4 different types.
A.normal PPR pipe fitting mould
B.self welding PPR pipe fitting mould.
C.PPR pipe fitting mould unscrewing ejection.
D.PPR metal over moulding pipe fitting mould.
The technical points for PPR pipe fitting moulds.
1.how to avoid the shrinkage marks on the fitting.
2.how to increase the injection moulding speed.
3.how to realize the cavities and core interchangeable.
4.If  there are metal bolt or nuts inserts,how realized the automatic feeding of the metal parts.
5.the injection parameters' controlling ,this is also very important,because the thick wall of PPR pipe fitting ,the pressure time,injection pressure and injection speed...all these effect the dimensions of the ID and OD.
......
Sino pipe fitting mould combined so many years experience in PPR pipe fitting moulds ranges,we have solved all above points.