Reciprocating gas compressors are designed and built by Norwalk to meet the increasing demand for long term reliability and efficiency...

• Two throw balance-opposed configuration for zero unbalanced forces
• Up to 6 stages of gas compression or multiple gas service
• Compressor frame ratings up to 2,000 BHP; 1,500 kW
• Pressures up to 25,000 Psig; 1,755 kg/cm2-ga (lubricated); up to 5,000 Psig; 350 kg/cm2-ga (non-lubricated)
• Conservative cylinder gas discharge operating temperatures
• Speed and piston velocity engineered for every application
• Fluid cooled compressor cylinders with generous access covers
• Rugged frame, distance piece, and cylinder group construction
• Contained system for force lubricated compressor frame internals
• Attended or unattended, continuous or intermittent operation
• Reduced maintenance and minimum floor space requirements

Established in 1864, Norwalk designs, manufactures, and field proves its own brand of reciprocating gas compressors to pressure-boost corrosive, flammable, inert, toxic, and contaminated gases at low, routine, or elevated inlet temperatures. These heavy duty, reliable and versitile compressors are built to suit demanding applications such as high pressure, gathering, lift, processing, reinjection, or recycling. Typical markets are chemical, cogeneration, fuels, industrial, off-shore,oil-field, petrochemical, and refinery facilities.

Complete foundation (block mount) or skid mounted package systems with driver are available to satisfy a wide range of design criteria such as:

• Open or closed coolant systems
• Analog and/or digital controls to include indicator and monitor instrumentation
• Electrical relay, pneumatic, or Programmable Logic Control (PLC) panels
• Flow modulation or step control of fluids and gases plus velocity analysis
• Pressure and temperature regulation plus safety relief valve arrangements
• Gas leakage and fire detection systems to include fire-safe valves
• Heat trace,-insulation, and personnel protection systems
• Purge and barrier gas plus mercaptan inhibitor systems
• Volume bottle, pulsation vessel, or snubberator designs to attenuate gas acoustics
• Segregated electric networks to hazardous or non-hazardous area classifications
• Gas drying, filtration, condensate separation, and associated disposal systems
• Other services can be provided, such as analog or digital acoustical studies, pipe stress-strain, Non-Destructive Examinations (NDE), seismic/wind load, sound level, thermal load, and torsional studies. In addition, compressors are assembled and functional plus mechanical tested at Norwalk's factory prior to shipment