imgaltair Neptune System 1
imgaltair Neptune System 2
imgaltair Neptune System 3
imgaltair Neptune System filters

altair Neptune System

Ultra-compact, 3 stage demister. Available in marine grade aluminium or stainless steel 316. This product is suitable for the protection of your gas turbine / diesel generator or propulsion assets on board a ship. The altair Neptune system is used by many of the world’s navies and also for fast ferry, cruise ship and luxury yacht applications.

Features / Benefits

  • SRS Technology (Salt Removal System)
  • MIL shock and vibration compliance
  • Coalescer access options (Front, top, side)

Technical Performance Data

HV1500 HV1000 HV600
Nominal Velocity 2600 FPM 1900 FPM 1150 FPM
13.25 m/s 10 m/s 6 m/s
System pressure loss at nominal velocity* 3.35 IN WG 2.28 IN WG 1.22 IN WG
85 mmH2O 58 mmH2O 31 mmH2O
Gravimetric efficiency vs ASHRAE** 80% 90% 98%
Salt output vs NGTE 30 know aerosol*** 0.0025 ppm 0.0036 ppm 0.0013 ppm
(99.93%) (99.90%) (99.97%)

* System includes front and rear stage Marine Vane Separator (MVS)
** Tested in a marine environment
*** 3.6 ppm input
All data are shown for indication purposes and are subject to change without notice. Actual results may vary.


  • altair HV600, HV1000, HV1500

Related Resources

Related Industries

Contact Us
North and South America
  • +1 800 821 2222
  • +1 816 356 8400
Europe, Middle East, Africa, Asia Pacific
  • + 44 (0) 1420 541188

Online: Contact Local Sales Rep 


  GTI Thought Leadership Webinar Series

Get real-world insight from our industry experts on topics including Improving Compressor Health, What Gas Turbine Inlet Filter Tests Tell You and What They Don’t, and GT Filtration System Troubleshooting

Register Now