Tube screw: G5/8，3/8，1/4，1/2，etc;

Metric system screw size series.

Hydraulic tube route, water tube route, plastic extrusion mold cooling route of water or oil, plastic bottle blowing mold, etc. 

High temperature and high pressure.

This is the specification sheet of the one way valves and fast change connectors. These products have been widely used in the mold of plastic bottle preform and have been exported to the world with the molds. Their body and tube are made of 316 stainless steel, the steel ball supporting structure is made of quality copper, the spring and O ring are imported from Japan Misumi. The actual life used in bottle preform mold has been 10 years.

The series of one way valves and fast change connectors are designed and made to work under high pressure and temperature. They have been exported to the world together with the mold, Japan, Europe, USA and recently Yindia. They are used on the molds for the bottles of Coca-Cola and Pepsi.