Máy nén LPG, NH3

Plain Style Reciprocating Compressor Overview
Corken's plain style reciprocating compressors utilize one set of V-ring packing or, a combination of V-ring and segmented packing per packing rod. Neither of these packing arrangements are oil-free designs. If oil-free gas compression is required, Corken's D-Style and T-Style compressors are recommended. With the exception of the model D891, all D-Styles are oil free. Since the D891 is not an oil-free compressor, it is used in the same applications as our plain style compressor.

Plain style compressors are typically used in non-toxic, non-corrosive applications where oil-free gas is not required and leakage containment is not critical. LPG (propane & butane), agricultural ammonia, and natural gas applications are where a single packed plain style compressor fits well.

Operating Specifications (Note: Since it is not oil free, the D891 is included with the plain style compressors) 
  • Piston displacements up to 117 cfm (198.8 m3/hr) 
  • Working pressures up to 450 psi (31.0 bar g) 
  • Brake horsepower up to 45 hp (34 kW) 
  • Maximum outlet temperature: 350 °F (177 °C) 
Construction
  • A plain style configuration has one packing set per piston rod and is not oil free 
  • Utilizes V-ring packing construction that consists of several V-rings, a male and female packing ring, washers, and a spring 
  • Single stage design only 
  • 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 ANSI flange connections
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: Stainless steel 
  • Valve spring: Stainless steel (Inconel available on some models) 
  • Pistons: Ductile iron, gray iron, stainless steel 
  • Piston rings: PTFE (glass and molly filled)
  • V-ring packing: PTFE (glass and molly 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: Tampered roller 
  • Retainer rings: Buna-N, Neoprene®. Registered trademark of the DuPont company. 
Features
  • All cylinders and heads are made of ductile iron for maximum thermal shock endurance 
  • The plain style packing configurations 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 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 that self adjusts to compensate for normal wear 
  • Adjustable packing screw ensures maximum sealing capacity throughout the life of the packing 
  • 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
  • Air 
  • Agricultural ammonia 
  • Butane 
  • Propane 
  • Natural gas 
  • And many more 
Applications
  • Vapor recovery 
  • Liquefied gas transfer 
  • Pressure boosting 
  • Tank evacuation 
  • Rail car loading and unloading 
  • And many more