Features：

Three-way flow design, one station installs two identical safety valves, one on-line for over-pressure protection and the other for maintenance.

The commutation system is safe, simple and quick.

Fast switching reduces exposure time for personnel in hazardous environments

Fast switching eliminates the need for a device to stop, provides continuous over-pressure protection, and avoids the costly costs associated with emergency shutdown.

A release valve is installed under each safety valve to safely and effectively release the medium before the safety valve is removed and to introduce it into the discharge pipe.

In that quick switch device, a balance valve is arranged so that the operation is portable.

Suitable for wide temperature range (low temperature to high temperature).

The seal is reliable and the required sealing tightness is maintained after multiple actions