Copperhead Inc have a complete solution for water control during Robotic Weld Cap exchanging operations. This product range is a GM North America standard and is used in conjunction with the Copperhead patented Automatic Rotary Cap Changer.
Below is a detail of the Rocon Water Control Valve. This product is still the quickest water shut off valve for Robotic Resistance Welding Guns. The concept of this design is principally a water fuse that is totally reliant on water flow for its function and efficiency.
Over many years it has been a Ford, GM, Chrysler standard prior to migration towards Delta Point.
Scania, Volvo and the former Thyssen Krupp facilities in UK also used the Rocon Valve.