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A8516-045

TG-17 (4000 CW)

4035 DROOP, CW, SS, OSTD, ATEX

A steam turbine mechanical-hydraulic governor with screw speed set range of 2400-4000 rpm, rated speed-droop at 4035 rpm at 2°, with a clockwise drive shaft rotation, and integrated overspeed test device (OTSD) for ATEX locations. The governor’s 23.7 N m (17.5 ft-lb) counterclockwise rotary output terminal shaft connects to the turbine’s governor valve to control turbine inlet steam flow.
Product Type

About A8516-045

Steam Turbine Governor|Web Store

  • Application Notes
  • Brochure
  • Product Specification
  • Software Manual
  • Technical Manual
  • Software
FEATURES & FUNCTIONALITY

The TG-17 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.  The TG-17 governor includes a special Overspeed Test Device (OSTD), allowing controlled and safe turbine overspeed trip testing initiated from any speed setting in a safe matter.

Replaced by:  8516-188 with Overspeed Test Device (OTSD)

Applications:

Where isochronous (constant-speed) operation is not required, the TG-17 drives steam turbines in:

  • Pumps
  • Compressors/Turboexpanders
  • Force and Inlet Draft Fans
  • Generators

Features:

  • Low cost
  • Speed droop control
  • Clockwise drive shaft
  • Integral overspeed test device (OTSD)
  • 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

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Download

Product Specification
Name
Item Number
Language
TG GOVERNORS
04038
English
Download
Technical Manual
Name
Item Number
Language
TG-13 AND TG-17 GOVERNORS
CH04042
Chinese
Member Sign In
COMMERCIAL PRESERV PKG FOR STORAGE OF MECH-HYDR CONTROLS
JP25075
Japanese
Download
TG-13 AND TG-17 GOVERNORS
JA04042
Japanese
Member Sign In
TG-13/TG-17 AND TG611-13/TG611-17 GOVERNORS
04042
English
Member Sign In
OILS FOR HYDRAULIC CONTROLS
25071
English
Download
COMMERCIAL PRESERVATION PACKAGING FOR STORAGE OF MECHANICAL-HYDRAULIC CONTROLS
25075
English
Download