sliderpump-300x300HDI Series Reciprocating Air Compressors

  • Controlled Lubrication
  • DV’s proprietary pressure lubrication process provides controlled lubrication to all critical areas by means of oil ring pickup.
  • Precision-Machined Cylinders
  • All cylinders are precision honed and machined to exact tolerances, reducing wear and friction.
  • Smooth, Free-Running Operation
  • Balanced crankshafts and precision ground journals, combined with heavy-duty ball-type main bearings, provide smooth, free-running operation.
  • Smooth, Vibration-Free Operation
  • Dynamically balanced, Airfoil-Type Flywheels provide a continuous flow of cooling air over all parts of the compressor.
  • Cool, Maintenance-Free Operation
  • Short stroke load matched pistons, combined with high quality alloy steel disc-type valves permit cool operation and maintenance-free service.

Overview 247 / 447 Compressor Pumps

The Two Stage, Two Cylinder 247 & Two Stage, Four Cylinder 447 Compressor Pumps Feature Cast-Iron Construction & Slow RPM, Making Them Ideal for Demanding Industrial Environments. The 247 & 447 are Precision-Machioned, Honed, Manufactured & Assembled in Canada.

Solid, Cast-Iron Cylinders

  • Minimizes Distortion from Assembly Torque & Heat.
  • Precision-Machined Cylinder Walls Honed to reduce Friction & minimize Oil Carry-Over & Friction.
  • Extra deep fins provide increased cooling & strength.

Balanced Pistons

  • Heat-Treated & Stress-Relieved Connecting Rods Cast from Ductile Iron & Assembled with Babbit Bearings Increase Durability & Reduce Wear on the Crankshaft.
  • High-Pressure, Cast-Iron Pistons withstand extreme forces. Low-Pressure Pistons made from aluminum alloy.
  • Extra wide compression rings designed to work seamlessly with the oil control rings & scraper.

Balanced Crankshaft

  • Ensures smooth, extended-life operation.
  • Precision-ground journals furnished with inserts for long, trouble-free operation.
  • Tapered shaft for reliable & effective transmission.

Balanced Flywheel

  • Airfoil-type spokes provide continuous, cooling air flow.
  • Smooth, Vibrationless Operation.

Quiet, Quick Acting Valves

  • Machined, carbon-steel valves balance air passages & structural integrity.
  • Hardened carbon steel valve guides & stainless steel disc valves and springs
  • Individually tested & easily serviced.

Cool Cylinder Head

  • Quick Cooling, Deep, Directional Fins.
  • Fast, efficient flow of cooler intake air due to compact, streamlined air passages in the cylinder head.

Load Free Starting

  • 10 HP & 15 HP Equipped with centrifugal pressure release (CPR) allowing the motor to start before a pressure load is applied to the pump.

Short Stroke Design

  • Large bore, short-stroke & slow operating speeds improves life expectancy & provides high air delivery.

Air Receivers

  • CRN & ASME Approved.
  • Maximum working pressure: 200 PSI
  • Complete with pressure gauge & CRN & ASME Approved safety valve.

Manifold Assembly

  • Two Pressure Switches Factory Pre-Set to Operate at 115/150 PSI (792.9/1034.kPa) Cut-In/Cut-Out
  • Maximum Operating Pressure Adjustable to 175 PSI (1206.6 kPa)

Ball Bearings

  • Oversized, Heavy load capacity ball bearings ensures a free-running crankshaft.
  • Lubricated from the crankcase, requiring no maintenance.

Deep-Finned Cast-Iron Intercooler

  • Enhances heat dissipation between compression stages
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