Woodward The QuickTrip is specifically designed for gas and steam turbine applications

Dirt Tolerance

The QuickTrip is specifically designed for gas and steam turbine applications where turbine lube oil is

also used to power the hydraulic turbine control valve actuator(s). Gas and steam turbine applications can

be extremely challenging for hydraulic trip block assemblies as dirt, metal shavings, water, and other

contaminants are common in such oil systems. Also, due to the high temperatures at which turbines

operate, turbine oil breakdown is common, resulting in the creation of a sludge-type substance and the

varnishing of internal system components. However, the QuickTrip is designed to operate reliably within

such challenging applications. Its corrosion-resistant materials, rotary valve design, and self-cleaning

ports allow it to operate in such applications without experiencing undesirable sticking or dragging.

In the past, older style trip block assemblies utilized internal orifices and pressure gauges to verify

solenoid valve operation, causing many maintenance problems when applied in turbine lube-oil-powered

trip systems. Since the QuickTrip does not utilize problematic orifices or pressure gauges, maintenance is

reduced, and system reliability improved.

Valve Status (local & remote)

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)

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.