Hydraulic Governors for Turbines

All of our hydraulic governors for turbines are from Woodward, the leading name in governors and related products. As a Woodward Authorized Independent Service Facility, we are qualified to provide onsite and on-call service for hydraulic governors.

We carry the following hydraulic governors for turbines:

Woodward TG611-13/-17 Governor

TG611 Governors are API-611 compliant, self-contained, mechanical-hydraulic, speed-droop governors for use on small steam turbine driving pumps, compressors, or generators, where isochronous (constant speed) operation is not required. These governors are directly coupled to the steam-turbine’s rotor or auxiliary shaft to sense and control turbine speed.

These governors are designed for API-611-based turbine applications, and include a special Overspeed Test Device, allowing controlled and safe turbine overspeed trip testing.

Features include:

  • API 611 Compliant
  • Low cost
  • Speed droop control
  • Integral overspeed test device
  • Weatherproof
  • Self-contained sump
  • NEMA "A" speed control
  • 16 and 23.7 Nm (12 and 17.5 lb-ft) outputs
  • Designed for harsh environments

Woodward PG12R/PG12L Actuator

The PG Actuator converts a given electrical input signal from the turbine control and converts it to a proportional hydraulic output.

The PG Actuator is used to replace PGA/PGE-type governors, providing the advantages of electronic control with the convenience of the existing PG-type drive and linkage. An LVDT is available to provide voltage feedback proportional to fuel-rack position. We recommend the PG Actuator for installation involving unattended starts.

Features include:

  • Proportional electric/hydraulic actuator
  • Rotary or linear output
  • Works with all Woodward 0–200 mA output electronic controls
  • Self-contained oil supply
  • Integral magnetic pickup and LVDT available