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LPG Gas Compressor
Brand: Corken, IncMany LPG (propane & butane) and agricultural ammonia piping systems do not have ideal conditions for net positive suction head (NPSH).
As a result the poor NPSH conditions lead to excessive pump maintenance.
Since reciprocating compressors are only exposed to vapors, poor NPSH conditions are not a factor.
Many LPG and agricultural ammonia pressurized tanks such as tank cars and buried tanks have top unloading connections.
A reciprocating compressor is the perfect solution for transferring liquids in this type of application.
Most Corken vertical LPG reciprocating compressors have single packed piston rods and none offer oil-free gas compression.
The only exception is the model D891 which has two sets of packing (one V-ring and one segmented) but it is not oil free.
Single packed, non oil-free compressors are typically used in non-corrosive and non-toxic applications where oil-free service and leakage containment are not critical.
Typical applications include propane, butane, agricultural ammonia, and natural gas.
Features- Connections - Available in threaded NPT or Class 300 RF flanges
- High-efficiency valves - Valves are quiet and highly durable. Special suction valves tolerating small amounts of condensate are available
- O-ring seals - Easy to install O-ring seals head and cylinder
- Ductile iron construction - Cylinder and head are made of ductile iron for maximum thermal shock endurance.
- Self-lubricating PTFE piston rings - State-of-the-art piston ring designs to provide the most cost-effective operation of compressors for non-lube service. The step-cut design provides higher efficiencies during the entire life of the piston ring
- Positively locked piston - Simple piston design allows end clearance to be precisely set to provide maximum efficiency and long life.
- Piston rod seals - Seals constructed of PTFE incorporating special fillers to maximize leakage control. Spring loaded seal design self adjusts to compensate for normal wear
- Nitrotec ®1 coated piston rods - Impregnated nitride coating provides superior corrosion and wear resistance.
- Cast-iron crosshead - Durable cast-iron crossheads provide superior resistance to corrosion and galling.
- Pressure-lubricated crankcase with filter - Self-reversing oil pump ensures proper lubrication regardless of directional rotation to main and connecting rod bearings. Standard 10-micron filter ensures long-lasting bearing life (not available on Model 91).
- Bulk transfer
- Cylinder filling
- Inert gas pad
- Liquid transfer/vapor recovery
- Tank evacuation for maintenance
- Truck/barge/tank car unloading