Redundancy/Availability

Designed for use in critical gas and steam turbine applications where turbine up time is important, the

QuickTrip uses three isolated solenoid valves designed to be driven by a triple modular redundant 2-out

of-3 voting based safety logic solver. Each isolated solenoid valve uses redundant power supply inputs to

increase both system reliability and availability. Note: only one power source is required to

power/energize each of the isolated solenoid valves.

On-Line Repairable

The QuickTrip’s modular design allows independent repair/replacement of each valve’s solenoid,

electrical module, and associated power supplies and wiring to increase both system reliability and

availability. Note: only one power source is required to power/energize each of the isolated

solenoid valves.

Each valve solenoid accepts power for one or two (redundant) power sources and has the following

status indications to assist operators with understanding the status and health of each valve.

• Valve Open—Local LED (red)

• Valve Open—Limit Switch

• Valve Closed—Local LED (green)

• Valve Closed—Limit Switch

• Power Supply #1 Healthy—Local LED (blue)

• Power Supply #2 Healthy—Local LED (blue)