Specifications

Physical and Performance Specifications

Solenoid Response Time: < 50 ms*

Failsafe Operation: Internal return spring on each solenoid valve

Weight: 110 kg (242 lb)

Mounting: Vertical mounting

* Solenoid response time represents the valve trip time and is defined as the time from when the solenoid

is de-energized to the time when the valves are at the full open position.​

Environmental Specifications

Ambient Temperature: (–40 to +85) °C / (–40 to +185) °F

Ex nA nC Minimum Ambient

Temperature: -20 °C (-4 °F)

Vibration Resistance: MIL-STD 810F, M514.5A, Cat. 4

(0.015 G²/Hz, 1.04 Grms)

Shock Resistance: US MIL-STD-810C method 516.2. procedure 1

(10 G Peak, 11 ms duration, saw tooth)

Corrosion Resistance: Two-part epoxy paint coating. Designed for outdoor conditions.

Ingress Protection

(IEC 60529. IEC 60079-0): IP66

Electrical Specifications

Supply Voltage: 24 VDC nominal ± 10% (use cable at least 0.8mm² / 18 AWG)

Current Consumption: 8 A max (2.6 A per channel max) at steady state @ 24 V

Control Input Voltage: 0-32 VDC, 20 mA max

Feedback Output Signal: Resistive: 2 A @ 28 VDC, max 32 VDC

Inductive: 0.5 A @ 28 VDC (max. 0.2 Henry)

Supply Voltage Connections: Terminal suitable for 0.8 to 3.3 mm² or 18 to 12 AWG stranded wire

Control Input and Discrete

Removable terminal suitable for 0.8 to 3.3 mm² or 18 to 12 AWG

stranded wire

Connections:

Cable Entries: 3 X 0.750”-14 NPT

1 Ground

Rotary Trip Valves

All three of the QuickTrip’s trip valves are spring return, two position rotary valves. When any of the

hydraulic valves is in its closed position, the ports in the valve are blocked preventing hydraulic flow

through the valve. As a valve rotates to the tripped position, the ports open and the trip header pressure

is connected to either the drain, or the inlet ports of another one of the valves. The combined action of

the three valves results in trip header pressure being connected to drain only when 2 or 3 valves are

tripped.

If the unit detects any shutdown condition or loss of power occurs, the trip valve return springs will force

the valves to the fail-safe / tripped position.

Electric Valve Actuators

The QuickTrip uses a set of three unique rotary solenoids called limited angle torquers (LAT). The

permanent magnet rotor is directly coupled to the trip valve.

The position of the valves is sensed by two limit switches present on each of the electrical modules.

These limit switches are located on both the closed and tripped positions of the valves, allowing the user

to easily determine the position of each valve.

Chemically Resistant Versions

For steam turbine applications where lube oil contains harsh chemical contaminants (ammonia, hydrogen

sulfide, etc.), a chemically resistant version of the QuickTrip has been developed. Chemically resistant

versions feature best-in-class seals in all wetted locations within the trip block assembly. Chemically

resistant versions provide an optimal solution for extreme chemical resistance while still maintaining

QuickTrip operating pressure and temperature ranges. Please contact Woodward for available models

and information regarding chemical resistance for specific applications.

Electric Valve Actuators

The QuickTrip uses a set of three unique rotary solenoids called limited angle torquers (LAT). The

permanent magnet rotor is directly coupled to the trip valve.

The position of the valves is sensed by two limit switches present on each of the electrical modules.

These limit switches are located on both the closed and tripped positions of the valves, allowing the user

to easily determine the position of each valve.

Electronic Driver Modules (PCB)

The printed circuit boards (PCB) are mounted on of the top of each valve module. The PCB(s) performs

the following tasks:

• Trip demand input

• Dual redundant power inputs

• Valve position feedback discrete outputs

• Visual valve position indication

Discrete outputs are provided for position feedback indication of each valve module. Within each valve

module, there are also four LEDs that indicate the current condition of the module as well as power

supply health. These LEDs are viewable through the module covers’ transparent sight window.

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)

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.

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.

This trip block assembly is housed in a fully integrated package, which includes three patented dirt

tolerant rotary trip valves. These valves are connected to provide redundant two-out-of-three based

voting to ensure that a failure of any one component (electronics module, valve, wiring, connector, etc.)

does not result in a nuisance trip condition. The QuickTrip’s modular design also allows users to replace

critical components (electrical module, solenoid, wiring, etc.) while the turbine is operating on-line.

Designed to quickly and reliably bleed off trip oil header pressure, at least two of the QuickTrip’s three

rotary solenoid valves must be de-energized to open a bleed path from the trip oil header to system

drain.

The QuickTrip accepts one or two (redundant) 24 VDC power sources to power each solenoid, and uses

three independent discrete input shutdown commands from a safety logic solver like the Woodward

ProTechTPS (independent voted models) to test and control each solenoid valve.

Because gas and steam turbines are often used in hazardous locations where flammable gases may be

present, the QuickTrip is designed to be mounted next to the turbine and is certified for use in Zone-1 or

Zone-2 (Class 1 or Class 2) hazardous locations.

When packaged with a Woodward ProTechTPS safety logic solver, the ProTechTPS performs the

required routine safety system diagnostic tests to verify unit operation while the turbine is on-line. The

proof test trip time response monitoring and logging ensures the total turbine safety system can respond

fast enough to safely shutdown the turbine.

The total installed cost for this fully integrated trip block assembly is low because it has been completely

assembled and tested at the factory. This greatly reduces OEM and end-user fabrication time, installation

time, and testing time.

The QuickTrip’s robust design (corrosion resistant materials, three independent moving rotary valves, and

self-cleaning port design) makes it optimal for challenging applications where dirty or contaminated oil

may be present.

The QuickTrip is certified for use in IEC61508 based turbine safety systems, and when paired with the

Woodward ProTechTPS, can be applied into systems that require a “Safety Integrity Level – 3” rating

or below.

Designed for use in new or retrofit turbine packages, the QuickTrip’s compact package size allows it to be

located near the turbine and trip & throttle valve, minimizing trip header piping and related system

delays.

Each trip leg includes bright position indication LEDs (run & trip), allowing turbine operators to quickly

verify system status locally near the turbine, as well as integrated limit switches for safety system and

plant DCS status and health validation.

The QuickTrip is an IEC61508 safety certified electro-hydraulic trip block assembly designed for use in

gas or steam turbine shutdown systems for quick and reliable dumping of the turbine’s trip oil header.

This trip block assembly’s 2-out of-3 voting design provides users with a high level of system reliability as

well as compliance with industry standards like API-670. API-612. and API-611.