Product features and advantages:

1. Size range: 1”~8” optional;

2. Inlet pressure: CL150~CL2500;

3. Temperature range: -196℃~+538℃;

4. Material: carbon steel, 304, 316L (duplex steel, nickel-based alloy and other materials can also be customized);

Modular structure design, easy to repair and replace;

5. The sealing surface material is surfacing Stellite, which has a long service life;

Working principle:

The changeover valve lockable combina-tion is composed of an inlet side change-over valve, an outlet side changeovervalve, and two identical safety valvesinstalled in the middle.lt is an upgrade ofthe safety valve switching device.

Through the linkage of the worm gear orthe chain wheel structure, it can achievethe synchronized action of the twochangeover valves,simultaneously cutoff the inlet and outlet of any safety valve.and realize the switch between theoperational safety valve and the standbyone.lt is especially suitable for systemswith back pressure at the outlet of thesafety valve,safely enabling thedisassembly of the safety valve.