D SERIES

Industrial Electric

15-40 HP

Engineered to be both dependable and versatile, the D-Series industrial electric direct drive rotary screw air compressor is one of many energy-efficient solutions developed by Sullivan-Palatek. The D-Series compressors are offering a range of 15-40 hp. They are equipped with an easily readable microprocessor, a coupling and air end mounted to the motor C-face. It utilizes a sizeable oversized separator element & sump tank as well as easily replaceable oil & air intake filters. With their compact size and high reliability, these machines are ideal for smaller industrial settings such as automotive shops, small machining facilities, and fabrication facilities.

The D-Series compressors utilize many easily accessible parts, making the overall cost of ownership much lower than many of our competitors.

Features & Benefits

  • Microprocessor controller with sequencer, lead-lag and remote monitoring for up to 8 machines
  • NEMA 1 ODP premium efficient three phase, 60 Hz, 200/208/230/460 or 575 volt motor
  • The motor starter has a NEMA 1 enclosure, 208/230/460/575 volt, with full magnetic voltage (MFV) starter with 110-volt controls, ETL listed, solid state control circuit breaker protection and three phase overload with external reset and phase protection
  • The air end, manufactured by Sullivan-Palatek, has advanced rotor design features; oversize radial thrust bearings, and precision working rotary screws that provide virtually no wear
  • Protective devices include class 20 solid state overload relay, high temperature, and overpressure shutdown switches, and anti-restart pressure switch preventing starting while air compressor is pressurized
  • Coupling and drive: compressor is flange mounted to motor C-face for positive alignment and directly coupled for increased efficiency
  • Cooling system equipped with double pass air-cooled aftercooler with thermostatic control for maintaining the appropriate oil operating temperature to within 15 degrees of ambient
  • Oversized dry type air intake filter with easily replaceable elements
  • One-piece lube fill elbow and level sight glass, a vented cap for pressure release when removing
  • Inlet/check valve features a one-piece housing for dependable performance and complete modulation
Model Horsepower (hp) Capacity (cfm) Pressure (psi) Motor Speed (rpm)
D-15 15 49.5 125 1750
D-H15 15 46.5 150 1750
D-20 20 78 125 1750
D-H20 20 78 150 1750
D-HH20 20 53 175 1750
D-25 25 105 125 3550
D-H25 25 92 150 3550
D-HH25 25 80 175 3550
D4-25 25 95 125 1750
D4-H25 25 90 150 1750
D4-HH25 25 78 175 1750
D-30 30 115 125 3550
D-H30 30 110 150 3550
D-HH30 30 105 175 3550
D-40 40 166 125 3550
D-H40 40 115 150 3550
D-HH40 40 110 175 3550
  • Manufacturing
  • Small Industrial Settings
  • Automotive Shops
  • Small Machining Factories
  • Fabrication Workshops
  • Water cooled
  • Tank mounted:
    • ASME coded 80, 120, and 200 gallon with auto drain
  • Platform mounted:
    • 19″ high to keep your unit off the ground and for easy maintenance
  • Acoustical enclosure:
    • Acoustical enclosure: Easy removable panels for faster maintenance and accessibility while keeping it quiet
  • Lubricant:
    • Lubricant: factory fill with Pallube 32, Pal-Extra 44, AFX 32, or Food Grade lubricant
  • TEFC motor
  • Wye-Delta and Solid States starters
  • Air filter pop up indicator
  • Deluxe gauge panel:
    • Line pressure gauge, discharge pressure gauge, hourmeter, temperature gauge, lube filter and separator element diffenential gauges
  • HATD shutdown switch:
    • Shuts the compressor if high discharge air temperatuer are sensed
  • Cold weather/low ambient package
  • Separator trap:
    • Captures and automatically drains condensed water, oil, and dirt
  • VFD
    • Variable Frequency Drive option, for more information, click here