Industrial Vertical Compressors

Corken offers a variety of piston rod packing configurations, distance piece options, and special coatings suitable for a wide range of industrial gases.

A double packed (D-Style) reciprocating compressor has one distance piece and offers a moderate level of leakage containment.

A triple packed (T-Style) compressor has two distance pieces offering the highest level of leakage control.

If necessary each area between the packing area can be purged/pad for maximum leakage containment. Both styles are available in single- and two-stage, air or water cooled, and single and double-acting versions with NPT or Class 300 RF connections.

Standard compressor mountings designed for liquefied gas transfer, vapor recovery, and gas booster applications are available. If one of these do not meet the requirements of the application, Corken can supply a custom engineered package. The ASME B31.3 – 2012 piping option is available upon request.

Each product group below is designed for a specific level of leakage containment.

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Double Packed Reciprocating Compressors (Oil Free)

A double packed (D-Style) reciprocating compressor has two packing seals per piston rod and moderate level of leakage containment.

  • Oil-free gas compression (exceptions: models D791 and FD891 are not oil free)

  • Typically used in toxic and corrosive applications where oil-free gas is required and moderate leakage containment is desirable
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Specifications
  • Two sets of packing per piston rod
  • Oil-free gas compression
  • Utilizes V-ring packing construction consisting of several V-rings, a male and female packing ring, washers, and a spring. Exception: Models D791 and FD891 use a combination of V-ring and segmented packing
  • Cylinder sizes are 1.25″, 1.75″, 2.5″, 2.75″, 3.0″, 3.25″, 4.0″, 4.5″ and 6.0″Single and two stage designs
  • Constructed with a single distance piece
  • NPT connections or Class 300 RF flanges available
  • Water cooled option available on some two-stage models
  • Double-acting designs (Models D791 and D891 only)
Piston Displacement up to 117 cfm (198.8 m3/hr)
Working Pressure: up to 1,200 psi (82.8 bar g)
Brake Horsepower up to 45 hp (34 kw)
Maximum Outlet Temperature 350°F (177°C)
Materials
  • 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 50V-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® (Registered trademarks of the DuPont)
Features
  • 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
Gases
  • Amines
  • Ammonia
  • Nitrogen
  • Biogas
  • Butane
  • Propane
  • Carbon dioxide
  • Dimethyl ether
  • Hydrocarbon gases
  • Natural gases
  • Refrigerants
  • And many more
Applications
  • 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
Markets
  • Chemical and petrochemical process
  • Oil and natural gas production
  • Alternative fuels
  • Liquefied gases
  • Electric power
  • Tank car
  • Liquid terminals
  • Marine

Triple Packed Reciprocating Compressors (Oil Free)

A triple packed (T-Style) compressor has three packing seals per piston rod offering the highest level of leakage control..

  • Oil-free gas compression
  • Typically used in toxic and corrosive applications where oil-free gas and maximum leakage containment are critical
RESOURCES
Specifications
  • Three sets of packing per piston rod
  • Oil-free gas compression
  • Utilizes V-ring packing sets that consists of several V-rings, male and female packing rings, washers, and a spring. Exception: Models T791 and T891 use a combination of V-ring and segmented packing
  • Cylinder sizes are 1.25″, 1.75″, 2.5″, 2.75″, 3.0″, 3.25″, 4.0″, 4.5″ and 6.0″Single and two stage designs
  • Constructed with two distance pieces
  • NPT connections, Class 300 RF, or DIN flanges available
  • Water cooled option available on some models
  • Double-acting designs (Models T791 and T891 only)
Piston Displacement up to 117 cfm (198.8 m3/hr)
Working Pressure: up to 1,200 psi (82.8 bar g)
Brake Horsepower up to 45 hp (34 kw)
Maximum Outlet Temperature 350°F (177°C)
Materials
  • 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 50V-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® (Registered trademarks of the DuPont)
Features
  • All cylinders and heads are made of ductile iron for maximum thermal shock endurance
  • Oil-free gas compression with the highest level of leakage containment
  • Since the T-Style configuration eliminates rod over travel, you get oil-free gas compression
  • The two distance pieces 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
  • Piston rod seals minimize oil carry over and maximize leakage control
  • 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 (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
Gases
  • Amines
  • Ammonia
  • Hydrogen
  • Biogas
  • Butane
  • Propane
  • Carbon dioxide
  • Chlorine
  • Dimethyl ether
  • Hydrocarbon gases
  • Natural gases
  • Refrigerants
  • Sulfur dioxide
  • Vinyl chloride
  • And many more
Applications
  • Gas blanketing
  • Instrumentation
  • Liquefied gas transfer
  • Pressure boosting
  • PSA gas generation
  • Rail car loading and unloading
  • Refrigerant reclaiming
  • Tank evacuation
  • Vapor recovery
  • And many more
Markets
  • Chemical and petrochemical process
  • Oil and natural gas production
  • Alternative fuels
  • Liquefied gases
  • Electric power
  • Tank car
  • Liquid terminals
  • Marine