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TDG-001 Pilot Control Shuttle Manifold
Woodward Gateshaft Governor Conversion
Gerler Engineering & Design, Inc. 1142 North Redbud Drive Loveland, CO 80538
Phone: Web:
Email:
970-593-1460 www.gerler-engineering.com/home email@gerler-engineering.com
Product Application - PA-001 27-May-14
Page 1
TDG-001 - Pilot Control Shuttle Manifold
Provides Electro-Hydraulic Interface between Modern Digital Control System and Vintage Gateshaft Governor System
TDG-001 - Pilot Control Shuttle Manifold
Designed Specifically for Hydro Turbine Control Applications.
Integral Shutdown Shuttle Valve Ensure Failsafe Operation in Compliance with IEEE Std 125 - 5.8.1.
Single Internal Moving Part Provides Reliable Operation for Many Years of Service.
Utilizes Commercially Available, Standard, D03 Type Valves for 65PV and 65R.
Utilizing Standard D03 Type Valve for 65R Allows Flexibility for Shutdown Scheme Options.
External / Remote Hydraulic Signal Sources Can Be Utilized for Run and Shutdown Initiation.
Gateshaft Control Column and Pilot Valve are Removed
Original Pilot Valve is Replaced with the TDG-001 Pilot Control Shuttle Manifold
LVDT is Installed to Provide Position Feedback for the
Relay Valve (Distributing Valve) Spool
MLDT is Installed to Provide Position Feedback for the Servomotor
(Wicket Gate, Etc. Position)
Dual Oil Filter Assembly is Installed to Ensure
Proper Oil Cleanliness for the New Control Valves
65 PV Proportional
Valve
Pilot Control Manifold
with Internal Shutdown
Shuttle Valve
Adapter Manifold Assembly65R
Run/Shutdown Solenoid Valve Controlling the Shuttle Valve
TDG-001 Pilot Control Shuttle Manifold
Woodward Gateshaft Governor Conversion
Gerler Engineering & Design, Inc. 1142 North Redbud Drive Loveland, CO 80538
Phone: Web:
Email:
970-593-1460 www.gerler-engineering.com/home email@gerler-engineering.com
Product Application - PA-001 27-May-14
Page 2
Typical Hydraulic Schematic of Gateshaft Conversion
FILTERED SYSTEM PRESSURE
PF AB
T P
B A65PV
65R
S/D SHUTTLE(SHUTDOWN
POSITION)
P
a
P T
A BPB.pv TA.pv
B.out A.out
TDG-001GATESHAFT
CONVERSION
TP-A-OUT
TP-A-PV
TP-B-PV
TP-PF
TP-SD
TDG-001PILOT CONTROL
SHUTTLE MANIFOLD
ADAPTER MANIFOLD
T
TP-B-OUT
TP-T
TPA B
T
TPA B
T
LVDT(POSITION FEEDBACK
FOR RELAY VALVE SPOOL)
MLDT(POSITION FEEDBACKFOR SERVOMOTOR)
GATESHAFTSERVOMOTOR
LIMIT SCREWS BOTH ENDS(TIMING NUTS)
CLOSING DIRECTION
GATESHAFT RELAY VALVE(DISTRIBUTING VALVE)
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