Woodward TG-13 9904-814 Legacy Mechanical Governors
Woodward TG-13 9904-814 Legacy Mechanical Governors
The TG-13 die-cast aluminum mechanical-hydraulic speed droop governor controls API611 steam turbines driving pumps, compressors, or generators where isochronous (constant-speed) operations is not required.
The governor controls turbine speed by sensing turbine rotor speed via the input drive shaft, comparing this speed to an internal speed set point, then using a rotary output terminal shaft connected to the turbine’s governor valve control turbine inlet steam flow.
This self-contained governor utilizes an integrated driveshaft-driven ball head assembly to sense turbine speed, and an integrated driveshaft-driven oil pump to create the necessary output force to move/control the turbine’s governor valve.
Replaced by: 8516-175 with Overspeed Test Device (OTSD), or 9904-814 without OSTD
Applications:
Where isochronous (constant-speed) operation is not required, the TG-13 drives steam turbines in:
Pumps
Compressors/Turboexpanders
Force and Inlet Draft Fans
Generators
Features:Low cost
TG-13
Speed droop control
Counterclockwise drive shaft
Weatherproof construction
Self-contained sump
NEMA “A” speed control
16 N m (12 ft-lb) outputs
Designed for harsh environments
Certified for HAZLOC and ATEX locations
TG13 Screw, 2400 rpm, CCW Rotation, ATEX, Rated Speed
@2° Droop = 2010 rpm
9904-814
TG13 Screw, 2400 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 1950 rpm
9904-815
TG13 Screw, 2400 rpm, CCW Rotation, ATEX, Rated Speed
@2° Droop = 1950 rpm
9904-816
TG13 Lever, 2400 rpm, CCW Rotation, ATEX, Rated Speed
@2° Droop = 1950 rpm
9904-817
TG13 Lever, 4000 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 3910 rpm
9904-818
TG13 Lever, 4000 rpm, CCW Rotation, ATEX, Rated Speed
@2° Droop = 3910 rpm
9904-819
TG13 Screw, 4000 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 3910 rpm
9904-820
TG13 Screw, 4000 rpm, CCW Rotation, ATEX, Rated Speed
@2° Droop = 3910 rpm
9904-821
TG13 Screw, 6000 rpm, CCW Rotation, ATEX, Rated Speed
@2° Droop = 5860 rpm
9904-822
TG13 Screw, 6000 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 5860 rpm
9904-823
TG13 Lever, 2400 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 1950 rpm
9904-824
TG13 Lever, 6000 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 5860 rpm
9904-825
TG13 Lever, 6000 rpm, CCW Rotation, ATEX, Rated Speed
@2° Droop = 5860 rpm
9904-826
TG13 Screw, 2400 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 2010 rpm
9904-827
TG13 Screw, 4000 rpm, CW Rotation, ATEX, Rated Speed
@2° Droop = 4035 rpm
9904-828