Companders

Rotoflow’s high-pressure compressor-loaded turboexpanders (companders) deliver high value by providing refrigeration for the most efficient air separation and liquefaction facilities in the world. Our companders offer world-class efficiency, high reliability, and low cost, and are simple to operate and maintain. Features include high-efficiency expansion (up to 92%) and high refrigeration capacities.

Typical Design Capabilities

 ASUHydrocarbon
Power12 to 14,000 kW
(16 to 18,774 hp)
8 to 12,977 kW
(11 to 17,403 hp)
SpeedUp to 70,000 rpmUp to 105,000 rpm
Inlet Pressure4 to 100 barg
(60 to 1,450 psig)
1.7 to 210 barg
(25 to 3,045 psig)
Temperature-200 to +150°C
(-320 to +300°F)
-270 to +340°C
(-454 to +644°F)
Outlet Flow282 to 20,883 am3/hr
(166 to 12,292 ACFM)
138 to 70,190 am3/hr
(81 to 41,312 ACFM)
Impellers89 to 422mm
(3.5 to 16.6 in.)
17 to 1,168mm
(0.65 to 46 in.)