Gear-reduced steam turbine driving your rotating equipment

Need a non-electric drive for a pump, fan or compressor?

In cases where an electric motor is not acceptable or not preferred, a steam turbine can be used to efficiently drive rotating equipment. AirClean’s Mech Series are designed to fulfill these requirements. AirClean will work with you to select your rotating equipment or couple to existing as required for your application.

Steam Turbine Generator Calculator

Is An AirClean Energy Sync Series STG Right For You?

The Mech Series STG’s are engineered for peak performance, long-life, and low-maintenance operation. These units come in two distinct flavors: Coupled Gearbox (CG) and Integral Gearbox (IG).

  • Mech-CG (Coupled Gearbox) STG’s are the older siblings to the Indy Series STG’s. These skid-mounted units consist of a steam turbine, reduction gear, turbine generator control system, and your rotating equipment. They are ideal for emergency cooling pumps and fans which need to operate even when plant power is offline.
  • Mech-IG (Integral Gearbox) STG’s stand apart from the Mech-CG’s in terms of power output and efficiency. These units can handle much larger steam flows than the Mech-CG’s. Their unique turbine/gearbox design gives them efficiencies which are competitive with small multi-stage turbines with simpler commissioning and maintenance. They can be configured with a single turbine wheel (Mech-IG-1) or two wheels (Mech-IG-2) when especially large flows or mid-pressure steam extraction is required.

Our Mech Series STG’s are customized for your facility. Packaged for easy installation, they include control systems designed for intuitive operator interaction and use PLC-based monitoring systems for vibration, temperature and overspeed trips.

  • Technical Specifications
  • Typical Utility Requirements
Mech-CG Mech-IG-1 Mech-IG-2
Power Generation Capacity: Up to 3,300 hp Up to 8,000 hp Up to 9,300 hp
Generator Voltages: 480 VAC / 4,160 VAC / 13,500 VAC 480 VAC / 4,160 VAC / 13,500 VAC 480 VAC / 4,160 VAC / 13,500 VAC
Power Factor: Set between 0.4 and 1.0 Set between 0.4 and 1.0 Set between 0.4 and 1.0
Steam Inlet Pressures: Up to 900 psig Up to 1900 psig Up to 1900 psig
Steam Inlet Temperature: Up to 900°F Up to 950°F Up to 950°F
Footprint: 7’ x 12’ (typical) 10’ x 20’ (typical) 15’ x 25’ x 15’ tall
Weight: 12,500 lb (typical) 30,000 lb Turbine – 28,000 lb, Generator – 35,000 lb
Mech-CG Mech-IG-1 Mech-IG-2
Turbine Bearing Lubrication Type: Ring-oiled or force-lubricated / ISO VG 68 Integral force-lubrication / ISO VG 46 Integral force-lubrication / ISO VG 46
Turbine Bearing Cooling Water: 2 gpm / 100 psig (max) / 90°F (max) 70 gpm / 50 psig (max) / 95°F (max) 70 gpm / 50 psig (max) / 95°F (max)
Generator Lubrication Type: Anti-friction grease 100 gpm / 30 psig (max) / 95°F (max) 100 gpm / 30 psig (max) / 95°F (max)
Generator Coil Cooling Water: None Oil, 12.5 gpm / 215 psig Oil, 12.5 gpm / 215 psig
Throttle Control Fluid: Air, 45 psig – 125 psig (Integrated with oil lubrication system) (Integrated with oil lubrication system)
Control Panel Power: 120 VAC / 1 Ph / 60 Hz / 20 A 120 VAC / 1 Ph / 60 Hz / 30 A 120 VAC / 1 Ph / 60 Hz / 30 A