UFC 4-150-02
12 May 2003
3-2.7
Requirements for High-Pressure Compressed Air. Many submarines
require a high-pressure compressed-air supply in addition to the customary
compressed-air requirements. CVN-68 class also requires high pressure air (ref NSTM
Chapter 9490). This service may be provided by tapping an available 20.7 MPa (3000
psi) or 31.0 MPa (4500 psi) source, or by utilizing portable compressors. Required
ships service size is normally 12.7 mm (1/2 in) or 19.05 mm (3/4 in). The ship's
compressors will be used for topoff under emergency conditions. Air quality should be in
accordance with NAVSEA S9086-AB-ROM-010, Naval Ship's Technical Manual
(NSTM), Chapter 551, "Compressed Air Plants and Systems". This chapter requires air
to be oil free and dehumidified by a desiccant type dehydrator to a dew point (at
atmospheric pressure) of -51 degrees C (-60 degrees F). High-pressure compressed
air service is normally portable and provided by the Activity, but the need must be
determined on an individual site basis.
3-3
SALTWATER OR NONPOTABLE WATER SYSTEMS. Shore-supplied
saltwater or nonpotable water must not be provided to active berthing piers and
wharves unless instructed otherwise. However, there are existing piers and wharves
that use saltwater or nonpotable water to meet ship fire protection, cooling, and flushing
requirements. For drydocks, refer to UFC 4-213-10. For pier and wharf fire protection
requirements, refer to UFC 3-600-01 Design: Fire Protection Engineering for Facilities,
as well as the criteria in this UFC. Consult with the cognizant fire protection engineer,
both at the local level and at the NAVFAC EFD/EFA OR USACE DISTRICT level.
3-3.1
must be justified and approved in advance by NAVFAC EICO. Use the following criteria
to establish approval requirements for these systems.
3-3.1.1
Repair Piers and Drydocks. At facilities used for major ship repair in
which the repaired ships do not have use of their own pumping capabilities, permanent
shore salt or nonpotable water systems are normally utilized. These types of
installations do not require prior approval. Design such systems in accordance with
applicable requirements defined herein and beginning with paragraph 3-3.2.
3-3.1.2
Active Berthing. Permanent salt or nonpotable water systems should not
be provided at active berthing facilities unless instructed otherwise. It is the Navy's
intent that ships at active berth will normally rely upon their own pumping capabilities to
supply saltwater for flushing/cooling and firefighting. In the event of a major fire or other
emergency, shore-based portable pumps and other available station fire apparatus
would be utilized to augment the ship's saltwater pumping capability.
Generally, fixed fire protection systems are not required for active berthing
piers when the level of the pier is low enough to the waterline such that the responding
fire crews can perform drafting operations from the pier. However, with the
development of the double-decker type piers, normal fire department operations are
restricted due to the elevation of the pier above the water level. Provide dry standpipe
systems for piers where construction features restrict fire department vehicle access
and/or prevent the fire department from performing drafting evolutions from the pier.
3-13
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