Corken's vertical, oil-free gas compressors provide a full range of capacities from 24 to 361 gpm (5.5 to 82 m3/hr) in liquid transfer. Corken also offers a double-acting vertical gas compressor capable of capacities from 337 to 757 gpm (76.5 to 171.9 m3/hr). These compressors provide a great deal of versatility. A compressor can be designed for railcar-unloading but with a minimal amount of additional piping, it can also be ultilized to load and unload trucks and recover gas from cylinders, tanks and lines.
Compressors are extremely versatile for they can be used to transfer liquids between tanks, off-load/load out liquids, recover residual vapor, and evacuate vapors for maintenance purposes. Many LPG piping systems do not provide ideal NPSH conditions for liquid pumps which causes excessive pump maintenance. Since compressors are only exposed to vapors, they are not affected by poor NPSH conditions. Many LPG pressurized tanks such as railcars and buried tanks have top unloading connections. A compressor can be the perfect solution for transferring liquids to and from such tanks.
Advantages
Threaded and ANSI flanges
Oil-free design
Self-lubricating PTFE1 step-cut piston rings
Packing adjustment screw in most models
Ductile iron construction
Positively locked piston
O-ring head gaskets
High-efficiency valves
Servicability
Corken compressors are designed to minimize required maintenance and make such maintenance extremely simple. Valve replacement may be accomplished without disturbing the piping and ring replacement may be accomplished by simply removing the head.
Versatility
The same compressor installed for one application can easily be piped to be utilized for other plant applications. An example would be a railcar-unloading, in which the compressor can also be utilized to load and unload trucks.
Truck Compressor Applications
Corken's LPG compressors have an extended crankshaft option for utilization on trucks with PTO and hydraulic drive systems. The compressor can be utilized for loading/ unloading as well as vapor recovery on trucks.