Qxpand: Highly efficient turboexpanders designed for custom applications
Stage 3 of refrigerant stator designed and manufactured by QxLoop team members.
Design Configurations Turbines Sealings Gearbox Manufacturing

Turbo-expander proven capabilities brought to ORC and small steam turbines.

Integral gear based turbo-expander provides numerous advantages over traditional single shaft turbines. It acts as an enabler for numerous classical or innovative solutions

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Qxpander: Versatile and robust
Integral gear based turbo-expander provides numerous advantages over traditional single shaft turbines.

Flexible Architecture

Find the optimized arrangement for your problem

Multiple turbine bodies enables a large combination of arrangements.

Numerous combinations to find your optimal configuration.

Integral gear based turbo-expander provides numerous advantages over traditional single shaft turbines. It acts as an enabler for numerous classical or innovative solutions

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Multi-stage saturated steam expander

High efficiency, high pressure ratio

Leverage inexpensive saturated steam generators in high efficiency power cycle by suppressing moisture-related blades erosion in turbine last stages.

Single radial stage organic expander

Low to medium expansion ratio

Overhung cantilevered single shaft architecture for simple, for an easily maintenable yet highly efficient expander. From 250 kW up to 2 MW. Perfect for low volume flow and low to medium enthalpy drop. Ideally suited for refrigerant such as R1233zd, R1234ye, pentane, butane.

Multi-stage single turbine organic expander

Medium to high expansion ratio, large volume flow

Overhung cantilevered single shaft architecture for an engineered and highly efficient expander. From 250 kW up to 5 MW. Adapted for high volume flow and medium to high enthalpy drop. Ideally suited for refrigerant such as pentane, butane, toluene, hexamethyldisiloxane, octomethyltrisiloxane.

Multi-stage multi-turbines organic expander

High expansion ratio, large volume flow

Adapted for high volume flow and high enthalpy drop for the utmost performance. Ideally suited for refrigerant such as pentane, butane, toluene, hexamethyldisiloxane, octomethyltrisiloxane. Power up to 8MW.

Up to 4 turbines for the maximum expansion ratio. Use high speed shaft for HP->MP expansion, low speed shaft for MP->LP expansion (allowing turbines rotational speed to be the most appropriate).

Innovation is our engine
A variable inlet gate valve stator for radial turbine engineered by QxLoop team. Used in organic expansion, it allows continuous expansion adaptation over a wide range of volume flow.

Dedicated turbine design.

We provide radial and axial designs to cover for a wide range of industrial and utility needs.

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Radial turbine

Medium expansion ratio, low to medium volume flow

Machined directly from our design with CNC - 5 axis, radial turbines can easily be customized for a wide range of applications. They offer numerous advantages:

  • Small number of parts
  • Ease of manufacturing
  • High enthalpy drop per stage
  • Natural reaction turbine
  • High efficiency, even at low volume flows

Axial turbine

Large expansion ratio, medium to large volume flow

Blades and machined directly from our design with CNC - 5 axis. They offer numerous advantages:

  • Large volume flow -> large power ratings
  • Enable compact multi-staging

Engineered shaft sealing.

Our carefully selected partners provide for the more robust and energy efficient shaft sealings.

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Oil lubricated

Oil lubricated mechanical O-ring pusher seal

Reference solution for organic fluids since barrier oil can be extracted from the process continuously.

Air/N2 lubricated

Dry gas lubricated shaft sealing

Reference solution for steam, sinc it allows super high sliding velocity.

Left picture: Courtesy of Eagle-Burgmann.

Gearbox is the expander base.

That's why we collaborate with experienced manufacturers such as Voith, Renk or Flender-Graff

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Integral gear

Dedicated applications arrangements

Integral gear design and manufacturing gathers lubrication, roto-dynamics and so on, leaving QxLoop team focused on turbine rotational speed definition.

We know where the capabilities are.

We have setup a wide network of partners able to tackle all manufacturing aspects.

Contact us at: contact@qxloop.com

Careers: applications must be made at: contact@qxloop.com

QxLoop SAS.

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