The ANP is ideal for natural gas gathering applications and is available in both single and two-stage models.
Unit of Measure

Specifications

Maximum Compressor Power Range

 40 hp

Drive End Rotation

 Clockwise

Valve Type

 Plain

Speed

 550 to 1000 rpm

Number of Cylinders

 2

Maximum Pressure

 250 psig

Construction Material

 Cast Iron

Valve Material

 AISI 420 Stainless Steel

O-Ring Material

 Viton

Industry Standards/Certifications

 Compressed Air and Gas Institute (CAGI) Energy Star Partner ISO 9001:2008

Dimensions

Bore Diameter

 4 1/4 in

Stroke

 4 1/4 x 4 1/2 in

Length

 33.9 in

Width

 24.34 in

Height

 26.8 in

Weight

 600 lb

Performance at 968 RPM

Airflow at 50 psig Discharge Pressure and 0 psig Suction Pressure

 57.6 mscfd6.4 bhp

Airflow at 50 psig Discharge Pressure and 10 psig Suction Pressure

 123.8 mscfd8.9 bhp

Airflow at 50 psig Discharge Pressure and 20 psig Suction Pressure

 191.3 mscfd9.4 bhp

Airflow at 50 psig Discharge Pressure and 30 psig Suction Pressure

 259.3 mscfd8.8 bhp

Airflow at 75 psig Discharge Pressure and 0 psig Suction Pressure

 46.1 mscfd6.8 bhp

Airflow at 75 psig Discharge Pressure and 10 psig Suction Pressure

 108.2 mscfd10.2 bhp

Airflow at 75 psig Discharge Pressure and 20 psig Suction Pressure

 174.7 mscfd12.4 bhp

Airflow at 75 psig Discharge Pressure and 30 psig Suction Pressure

 242.1 mscfd13.0 bhp

Airflow at 75 psig Discharge Pressure and 40 psig Suction Pressure

 310.0 mscfd12.7 bhp

Airflow at 75 psig Discharge Pressure and 50 psig Suction Pressure

 378.2 mscfd11.9 bhp

Airflow at 75 psig Discharge Pressure and 60 psig Suction Pressure

 446.7 mscfd10.1 bhp

Airflow at 100 psig Discharge Pressure and 0 psig Suction Pressure

 36.1 mscfd6.8 bhp

Airflow at 100 psig Discharge Pressure and 10 psig Suction Pressure

 92.8 mscfd10.7 bhp

Airflow at 100 psig Discharge Pressure and 20 psig Suction Pressure

 158.9 mscfd14.0 bhp

Airflow at 100 psig Discharge Pressure and 30 psig Suction Pressure

 225.6 mscfd15.9 bhp

Airflow at 100 psig Discharge Pressure and 40 psig Suction Pressure

 292.9 mscfd16.6 bhp

Airflow at 100 psig Discharge Pressure and 50 psig Suction Pressure

 360.7 mscfd16.5 bhp

Airflow at 100 psig Discharge Pressure and 60 psig Suction Pressure

 428.8 mscfd15.9 bhp

Airflow at 100 psig Discharge Pressure and 70 psig Suction Pressure

 497.1 mscfd14.9 bhp

Airflow at 100 psig Discharge Pressure and 80 psig Suction Pressure

 565.6 mscfd13.1 bhp

Airflow at 125 psig Discharge Pressure and 10 psig Suction Pressure

 82.1 mscfd11.2 bhp

Airflow at 125 psig Discharge Pressure and 20 psig Suction Pressure

 143.7 mscfd14.7 bhp

Airflow at 125 psig Discharge Pressure and 30 psig Suction Pressure

 209.7 mscfd17.6 bhp

Airflow at 125 psig Discharge Pressure and 40 psig Suction Pressure

 276.5 mscfd19.4 bhp

Airflow at 125 psig Discharge Pressure and 50 psig Suction Pressure

 343.8 mscfd20.1 bhp

Airflow at 125 psig Discharge Pressure and 60 psig Suction Pressure

 411.5 mscfd20.1 bhp

Airflow at 125 psig Discharge Pressure and 70 psig Suction Pressure

 479.4 mscfd19.7 bhp

Airflow at 125 psig Discharge Pressure and 80 psig Suction Pressure

 547.6 mscfd19.0 bhp

Airflow at 125 psig Discharge Pressure and 90 psig Suction Pressure

 616.0 mscfd17.9 bhp

Airflow at 125 psig Discharge Pressure and 100 psig Suction Pressure

 684.5 mscfd16.1 bhp

Airflow at 150 psig Discharge Pressure and 10 psig Suction Pressure

 71.9 mscfd11.5 bhp

Airflow at 150 psig Discharge Pressure and 20 psig Suction Pressure

 128.8 mscfd15.1 bhp

Airflow at 150 psig Discharge Pressure and 30 psig Suction Pressure

 194.3 mscfd18.5 bhp

Airflow at 150 psig Discharge Pressure and 40 psig Suction Pressure

 260.6 mscfd21.1 bhp

Airflow at 150 psig Discharge Pressure and 50 psig Suction Pressure

 327.4 mscfd22.8 bhp

Airflow at 150 psig Discharge Pressure and 60 psig Suction Pressure

 394.7 mscfd23.6 bhp

Airflow at 150 psig Discharge Pressure and 70 psig Suction Pressure

 462.3 mscfd23.7 bhp

Airflow at 150 psig Discharge Pressure and 80 psig Suction Pressure

 530.1 mscfd23.5 bhp

Airflow at 150 psig Discharge Pressure and 90 psig Suction Pressure

 598.2 mscfd22.9 bhp

Airflow at 150 psig Discharge Pressure and 100 psig Suction Pressure

 666.5 mscfd22.0 bhp

Airflow at 175 psig Discharge Pressure and 10 psig Suction Pressure

 61.9 mscfd11.4 bhp

Airflow at 175 psig Discharge Pressure and 20 psig Suction Pressure

 118.1 mscfd15.7 bhp

Airflow at 175 psig Discharge Pressure and 30 psig Suction Pressure

 179.3 mscfd19.1 bhp

Airflow at 175 psig Discharge Pressure and 40 psig Suction Pressure

 245.0 mscfd22.3 bhp

Airflow at 175 psig Discharge Pressure and 50 psig Suction Pressure

 311.4 mscfd24.7 bhp

Airflow at 175 psig Discharge Pressure and 60 psig Suction Pressure

 378.3 mscfd26.2 bhp

Airflow at 175 psig Discharge Pressure and 70 psig Suction Pressure

 445.6 mscfd27.1 bhp

Airflow at 175 psig Discharge Pressure and 80 psig Suction Pressure

 513.1 mscfd27.3 bhp

Airflow at 175 psig Discharge Pressure and 90 psig Suction Pressure

 580.9 mscfd27.1 bhp

Airflow at 175 psig Discharge Pressure and 100 psig Suction Pressure

 648.9 mscfd26.7 bhp

Airflow at 200 psig Discharge Pressure and 10 psig Suction Pressure

 52.3 mscfd11.0 bhp

Airflow at 200 psig Discharge Pressure and 20 psig Suction Pressure

 107.8 mscfd16.0 bhp

Airflow at 200 psig Discharge Pressure and 30 psig Suction Pressure

 164.9 mscfd19.5 bhp

Airflow at 200 psig Discharge Pressure and 40 psig Suction Pressure

 229.8 mscfd23.0 bhp

Airflow at 200 psig Discharge Pressure and 50 psig Suction Pressure

 295.8 mscfd25.9 bhp

Airflow at 200 psig Discharge Pressure and 60 psig Suction Pressure

 362.3 mscfd28.2 bhp

Airflow at 200 psig Discharge Pressure and 70 psig Suction Pressure

 429.2 mscfd29.7 bhp

Airflow at 200 psig Discharge Pressure and 80 psig Suction Pressure

 496.5 mscfd30.5 bhp

Airflow at 200 psig Discharge Pressure and 90 psig Suction Pressure

 564.0 mscfd30.8 bhp

Airflow at 200 psig Discharge Pressure and 100 psig Suction Pressure

 631.7 mscfd30.7 bhp

Airflow at 225 psig Discharge Pressure and 20 psig Suction Pressure

 97.6 mscfd16.1 bhp

Airflow at 225 psig Discharge Pressure and 30 psig Suction Pressure

 154.2 mscfd20.0 bhp

Airflow at 225 psig Discharge Pressure and 40 psig Suction Pressure

 214.9 mscfd23.5 bhp

Airflow at 225 psig Discharge Pressure and 50 psig Suction Pressure

 280.5 mscfd26.8 bhp

Airflow at 225 psig Discharge Pressure and 60 psig Suction Pressure

 346.6 mscfd29.5 bhp

Airflow at 225 psig Discharge Pressure and 70 psig Suction Pressure

 413.2 mscfd31.6 bhp

Airflow at 225 psig Discharge Pressure and 80 psig Suction Pressure

 480.1 mscfd33.1 bhp

Airflow at 225 psig Discharge Pressure and 90 psig Suction Pressure

 547.4 mscfd34.0 bhp

Airflow at 225 psig Discharge Pressure and 100 psig Suction Pressure

 614.8 mscfd34.3 bhp

Airflow at 250 psig Discharge Pressure and 20 psig Suction Pressure

 87.7 mscfd16.0 bhp

Airflow at 250 psig Discharge Pressure and 30 psig Suction Pressure

 143.7 mscfd20.4 bhp

Airflow at 250 psig Discharge Pressure and 40 psig Suction Pressure

 200.9 mscfd23.9 bhp

Airflow at 250 psig Discharge Pressure and 50 psig Suction Pressure

 265.4 mscfd27.4 bhp

Airflow at 250 psig Discharge Pressure and 60 psig Suction Pressure

 331.2 mscfd30.5 bhp

Airflow at 250 psig Discharge Pressure and 70 psig Suction Pressure

 397.5 mscfd33.1 bhp

Airflow at 250 psig Discharge Pressure and 80 psig Suction Pressure

 464.1 mscfd35.1 bhp

Airflow at 250 psig Discharge Pressure and 90 psig Suction Pressure

 531.0 mscfd36.5 bhp

Airflow at 250 psig Discharge Pressure and 100 psig Suction Pressure

 598.3 mscfd37.4 bhp

Lubrication

Lubrication
  • Superior lubrication is accomplished through a gear driven oil pump powered by the crankshaft.
  • Pressurized system ensures complete lubrication to the crankshaft, connecting rods, bearings and piston pins.
  • Full flow, spin-on oil filter ensures impurities are removed before the lubricant contacts any internal components.
  • Oil pressure gauge is conveniently mounted to display the oil pressure.

Valves

Valves
  • Concentric ring design incorporates both the inlet and outlet valves in one assembly.
  • Designed to give 100% exposure to the air flow for maximum efficiency (i.e. more CFM per HP).
  • Discs and springs are made of AISI 420 stainless steel to give dependable corrosion-free and fatigue-free service life.

Standard Features

Standard Features
  1. ASME pressure relief valve protects the intercooler and first stage from over pressure.
  2. Suction unloading valves (where applicable) provide load less starting and stopping as well as quick response to capacity demands.
  3. Removable hand-hole plate allows easy access to the internal running gear.
  4. Tri-Metal insert bearings are two-piece for quick and easy replacement.
  5. Counterbalanced crankshaft assures smooth operation.
  6. Replaceable piston pin bearings are very economical when replacement becomes necessary.
  7. Deep-finned cylinders and heads quickly dissipate the heat of compression.
  8. Crankshaft ends are supported by large tapered roller bearings for smooth operation and long life.
  9. Oil pressure gauge assures the operator of lubrication system integrity.
  10. The cylinders and crankcase are built of industrial strength cast iron materials.
  11. Continuous Operation

Applications

Applications

 Ideal for use in natural gas gathering applications.

Additional Information

Additional Information
  • Concentric Ring Type Valves.
  • Drive Sheave with Turbo Fins.
  • No Exposed Brass or Copper Components.
  • Threaded Crankcase Vent Connection.
  • Counter Balanced Crankshaft.
  • Factory Fill with AEON® 500.