Model 6995
Low-Pressure Membrane Air Dehydrator
The Model 6995 has been:
- Approved for all classes of surface combatants and amphibious ships
- Selected for new construction ARLEIGH BURKE DDG-51 class
- Approved for Surface Combatant SHIPALTS: CG47-587D; DDG51-283D; DD963-982D; FFG7-393D
- Approved for Amphibious Ship AERs:
- LHA1 AER 26/98
- LHD1 AER 18/98
- LPD4 AER 30/98
- LSD 36 AER 16/98
- LSD 41 AER 21/98
- LSD 49 AER 25/98
- LCC 19 AER 16/98
- AGF 3/11 AER 05/98
General Description:
The Model 6995 is a self-contained unit and is designed for continuous, automatic operation. Moisture is removed by passing the incoming wet air through an array of 
™ membrane modules by BEKO. Solid contaminants and oil aerosol are removed by mechanical filtration.
in action
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The Model 6995 is currently offered in 20 scfm (Mark I) and 30 scfm (Mark II) configurations, and can easily be expanded to 50 scfm or more!
A complete suite of Integrated Condition Assessment System (ICAS) instrumentation can be provided (Mark IA), as used on DDG-89 and following. Measured parameters include air flow rate (inlet and outlet), inlet air temperature, inlet, outlet, and purge pressures, and outlet dew point.
Features:
- Fits in the same "footprint" as the desiccant dryers it replaces.
- Foundation and piping adapters are provided to allow replacement of other manufacturers' dryers.
- Does not remove oxygen from the air stream; does not vent oxygen-rich purge to the space.
- Complete with instrumentation package to monitor operation.
- Purge air consumption does not increase* with increasing inlet pressure.
- Electrical power is needed only for humidity monitoring, not for dehydration.
* In fact, the purge pressure is constant at 60 psig. This saves the ship's compressors from unnecessary wear and ensures minimum purge losses. ("Purge-Conserve" is U. S. patent 5,605,564).
Specifications:
- Built in accordance with DDG-51 Flight IIA specification FY96-551-07A. Welded in accordance with MIL-STD-278. Fully qualified to MIL-S-901D, High Impact Shock (Grade A), and MIL-STD-167-1, Vibration (Environmental) Shipboard. ICAS units are DDG-51 specification FY96-551-07A, PSC4.
- Dimensions: 36" W x 48" H x 18" D
- Weight: 425 pounds
- APL: 6995 Mark I - 440300062
6995 Mark IA: tbd
6995 Mark II - 440300061
- Tech Manual: S9514-C7-MMA-010 (Marks I, IA & II)
- Outlet Capacity: Model 6995 Marks I & IA: 20 scfm
Model 6995 Mark II: 30 scfm.
Capacities to 150 scfm available in larger configurations.
- Inlet Air Conditions (defined by specification): 80-125 psig, 50° F to 122° F, maximum dew point of 60° F at 80 psig.
- Outlet Air Conditions: 70-125 psig, maximum dew point of -40° F at 80 psig. Pressure not more than 10 psig below inlet.
- Electrical Requirements: 115 VAC, 60 Hz, single-phase, 0.5 ampere (for humidity monitor only).
