Expander Compressor

Expander Compressor


These high-speed machines are typically used within the natural gas, petrochemical, and air separation industries. As high-pressure gas is expanded across the turbine, the energy potential in the gas is extracted and transferred through the shaft and to the compressor. The resultant pressure reduction combined with efficient energy extraction produces the refrigeration necessary for cryogenic gas processing.

Which turboexpander bearing solution is right for you?

Oil Bearing Turboexpander

LAT has extensive experience in building turboexpanders with oil bearing systems with either a standard sleeve bearing or tilt pad bearings. Whether the design represents a single-stage turboexpander or two-stage turboexpanders operating in series with a common auxiliary system on a single skid, L.A. Turbine can build it. Often better and faster than other OEMs.

Where the existing wheel is damaged and not suitable for reverse engineering, L.A. Turbine has the engineering capability, experience, and technology to design a new wheel.

Why choose an oil bearing turboexpander configuration?
  • Heritage design with operator endorsement
  • Large installed base with decades of proven results
  • High load capacity, stiffness and damping assure stable performance in wide operating ranges
  • Hydrocarbon Processing: NGL |LNG| LPG |DPC
  • Industrial Gas
Exploded View

Active Magnetic Bearing (AMB) Turboexpanders

Turboexpanders equipped with active magnetic bearings (AMB) are available in two designs for the controller and the programmable logic control panel (PLC). Either an on-skid configuration where both the controller and control panel are mounted on the skid platform with the turboexpander and installed within the hub of the plant processing area. Or the off-skid configuration, where the controller and control panel are located away from the skid and installed in a separate building, often designated as the control room.

On Skid Controller – Designed for Class 1/Division 2 hazardous area installation. Read More..

Off Skid Controller – Designed for unclassified/safe areas and for end users who desire an unpurged AMB control panel Read More..

  • Hydrocarbon Processing: NGL |LNG| LPG |DPC
  • Petrochemicals
  • Industrial Gas
What are the benefits of magnetic bearings?
  • Increased reliability
  • Demonstrated availability of 99.9%
  • Environmentally friendly
  • Increases plan safety
  • Enhances rotor dynamic control
  • Lowers total cost of ownership
Exploded View

On Skid Controller: ARES AMB Turboexpander

The ARES AMB Turboexpander-Compressor features the exclusive skid-mounted AMB control system and programmable logic control (PLC) panel design that is certified for Class 1/Division 2 hazardous area installation.

The skid-mounted Zephyr® AMB control system provides optimized performance, high reliability and delivers lower maintenance costs. The technology allows for remote connectivity to monitor, tune and perform diagnostic services. Also important is the high processing performance for complex algorithms which provides high dynamic efficiency for flexible production output capacity.

Why choose an on skid AMB controller and PLC turboexpander configuration?
  • Leading-edge technology
  • Faster commissioning
  • Decreased cost
  • Hydrocarbon Processing: NGL |LNG| LPG |DPC
  • Petrochemicals
  • Industrial Gas
What are the benefits to installing an ARES AMB on skid classified control system?

Simplified Use

  • Reduces need for vendor coordination
  • Eliminates need for ongoing field AMB specialist support

More Installations Site Options

  • Ideal for unmanned & remote locations
  • No longer requires additional space in plant control room to house AMB controller

Improved Performance

  • Easy installation & immediate operation
  • Technology provides remote AMB commissioning & monitoring

Saves Time & Money

  • Faster delivery of pre-engineered & tested solution
  • Machine arrives ready to go with no onsite equipment assembly required
  • Machine and controller design reduce overall CAPEX

Off Skid Controller: AMB Turboexpander

L.A. Turbine offers an AMB turboexpander-compressor with the controller and programmable logic control (PLC) panel located away from the turboexpander skid.

Why choose an AMB controller and panel located away from the turboexpander skid?

The off-skid approach is ideal for plant operators who prefer to locate their AMB control system and panel in an unclassified/safe area, thus eliminating the need to have a purged system at the installation site. L.A. Turbine provides an off skid AMB control cabinet solution for customers who prefer a traditional AMB configuration.

  • Hydrocarbon Processing: NGL |LNG| LPG |DPC
  • Petrochemicals
  • Industrial Gas