D-Style Oil-Free Reciprocating Compressors

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D-Style Oil-Free Reciprocating Compressors

  • Utilizes two sets of V-ring packing per piston rod and one distance piece
  • Adjustable packing screw on lower packing maximizes sealing performance over the life of the packing
  • Oil-free gas compression (exceptions: models 791 and 891 are not oil free)
  • Typically used in toxic and corrosive applications where oil-free gas is required and moderate leakage containment is desirable

Operating Specifications

Piston displacement: up to 117 cfm (198.8 m3/hr)
Working pressure: up to 1,200 psi (82.8 bar g)
Brake horsepowers: up to 45 hp (34 kW)
Maximum outlet temperature: 350°F (177°C)
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  • Description
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D-Style oil-free compressors offer two sets of packing per piston rod and one distance piece for moderate leakage containment. Purge kits with all of the accessories needed to purging or pad the distance piece are available.

 
 
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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.

  • 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) or Alloy 50
  • 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, PTFE, Viton, Neoprene
  • All cylinders and heads are made of ductile iron for maximum thermal shock endurance
  • Oil-free gas compression with a moderate level of leakage containment
  • Distance piece eliminates piston rod over travel and provides oil-free gas compression
  • The distance piece can be purged or pressurized for maximum leakage control
  • 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 entire 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 and self adjusts to compensate for normal wear
  • Adjustable packing screw ensures maximum sealing capacity throughout the life of the packing (exceptions: models 791 and 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
  • All cylinders and heads are made of ductile iron for maximum thermal shock endurance
  • Oil-free gas compression with a moderate level of leakage containment
  • Distance piece eliminates piston rod over travel and provides oil-free gas compression
  • The distance piece can be purged or pressurized for maximum leakage control
  • 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 entire 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 and self adjusts to compensate for normal wear
  • Adjustable packing screw ensures maximum sealing capacity throughout the life of the packing (exceptions: models 791 and 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
  • Air booster
  • Gas blanketing
  • Instrumentation
  • Liquefied gas transfer
  • Pressure boosting
  • PSA gas generation
  • Rail car loading and unloading
  • Refrigerant reclaiming
  • Selective catalytic reduction
  • Tank evacuation
  • Vapor recovery
  • And many more
  • Chemical and petrochemical process
  • Oil and natural gas production
  • Alternative fuels
  • Liquefied gases
  • Electric power
  • Tank car
  • Liquid terminals
  • Marine

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