The Pipe valve 's raw material is PVC ,its melt temperature and thermal decomposition temperature is very similar.The viscosity can't be reduced by improving the temperature.What's more ,the PVC material can't be kept for a long time in high temperature for degradation.The processing technic of PVC will be more difficult than others.

In order to produce high quality pipe valve ,The following tips should be taken into consideration.

Reasonable raw material formula
Reasonable products structure design
Injection machine selection and mould design
Fine processing condition
There are several steps about the technological process
PVC raw material and additive preprocessing
Material Mixing
Pelletizing

Injection molding
Demoulding
Finished pipe valve
As the raw material PVC 's viscosity is high ,the flow resistance is high and the constructure of pipe valve mould is very complex,the injection pressure should be high,between 70~140MPa.

SINOMOULD company is a professional injection mould manufacturer and innovator .If there are anything we can do for you, please contact me,MAY !

SKYPE:sinomould-16
E-mail:sino1509@sinomould.com
MSN:sinomould -16@hotmail.com