LPG Reciprocating Compressor

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LPG Reciprocating Compressor

Many LPG (propane & butane) and agricultural ammonia piping systems do not provide ideal net positive suction head (NPSH) conditions for liquid pumps. As a result the poor NPSH conditions lead to excessive pump maintenance. Since reciprocating compressors are exposed to vapors only, 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 of Corken’s 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); however, 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 application include propane, butane, agricultural ammonia, and natural gas.

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  • Utilizes one set of V-ring packing per piston rod and
  • No distance piece between the cylinder and crosshead guide
  • Not oil free
  • Single stage compression
  • Ideal for non-toxic, non-corrosive applications where oil-free gas and leakage containment are not critical


Operating Specifications

Piston displacement: up to 117 cfm (198.8 m3/hr)
Working pressure: up to 450 psi (31 bar g)
Brake horsepower: up to 45 hp (34 kW)
Maximum outlet temperature: 350°F (177°C)

Whether you are in the energy, gas, transport, or process industry, Corken has a pump that will meet all your industrial pumping requirements. Established in 1924, Corken is an industry-leading manufacturer committed to offering innovative and unparalleled pumping and compression manufacturing solutions across various industries. Ali Yaqoob Trading Co. LLC is an authorized distributor of Corken in the Middle East, offering an exclusive line of Corken pumps, gas compressors, bypass valves, and accessories at highly compelling prices. Applications include autogas filling stations, bulk plant pumps, tanker unloading, fuel oil delivery, vapor recovery, liquefied gas transfer and many more. Corken has built a reputation of safety and efficiency in its entire product line for nearly a century.Our high capacity pumps feature a rugged design that is reliable, explosion-proof, and suitable to pump products even in the harshest conditions. These pumps are available in cast iron are comprised of three different technologies; regenerative turbine, positive displacement sliding vane and multi-stage side channel. Whether you seek customized solutions or want a go-to provider of fluid handling equipment, feel free to contact our team of experts.

  • One packing set per piston rod
  • Does not offer oil-free compression
  • Utilizes a V-ring packing design (V-rings, a male and female packing ring, washers, and a spring)
  • Single stage design only (exception: model 891 offer two-stage compression)
  • Four single-acting models (91, 291, 491 & 691) and one double-acting (D891)
  • Cylinder sizes are 3.0″, 4.0″, and 4.5″
  • Available with NPT or Class 300 RF connections
  • Head and cylinder: Ductile iron
  • Crosshead guide, crankcase, flywheel and bearing carrier: Gray iron
  • Valve seat and bumper: stainless steel or ductile iron
  • Valve plate: PEEK or stainless steel
  • Valve spring: Stainless steel
  • Pistons: Ductile iron, gray iron, stainless steel
  • Piston rings: PTFE (glass and moly filled)
  • V-ring packing: PTFE (glass and moly filled)
  • Packing cartridge: Ductile iron
  • Crankshaft: Ductile iron
  • Connecting rod: Ductile iron
  • Connecting rod bearing: Bimetal Babbitt
  • Wrist pin: Steel
  • Wrist pin bushing: Bronze
  • Main bearing: Tapered roller
  • O-rings: Buna-N, Neoprene
  • All cylinders and heads are made of ductile iron for maximum thermal shock endurance
  • A single packed compressor is a great low cost option for applications where oil-free gas and leakage containment are not critical
  • Valve design offers quiet operation, high efficiency and greater durability
  • The step-cut design of the self-lubricating piston rings provides higher efficiencies during the life of the piston ring
  • Positively locked pistons allows end clearance to be precisely set to provide maximum efficiency and long life
  • Packing sets are a spring loaded seal design that self adjusts to compensate for normal wear
  • Adjustable packing screw ensures maximum sealing capacity throughout the life of the packing (exception: model 891)
  • Cast iron crossheads provide superior resistance to corrosion and galling
  • Pressure-lubricated crankcase with filter keeps the internals well lubricated at all times and minimizes premature wear
  • Agricultural ammonia
  • Butane
  • Natural gas
  • Propane
  • And many more
  • Vapor recovery
  • Liquefied gas transfer
  • Pressure boosting
  • Tank evacuation
  • Rail car loading and unloading
  • And many more
  • Oil and natural gas production
  • Liquefied gases
  • Truck and transport
  • Liquid terminals
  • Marine

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