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9 Cards in this Set
- Front
- Back
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a. LPACs |
i. 3 LPACs,rated at 200 CFM @ 125 psi ii. Modes 1. 125 – lead 2. 120 – standby 3. 115 – lag |
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CASUALTY CONTROL If LP air header pressuredrops to 100 psig, |
priority valves will start to shut. |
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CASUALTY CONTROL If LP air header pressuredrops to 85 psig |
priority valves will fully close. (a. This isolates all non-vital air users from thesystem.) |
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CASUALTY CONTROL If LP air header pressurecontinues to drop |
1. the system will be augmented by HP air through 2reducing stations (one per MER) |
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1. Concerns for loss of LP air |
a. Over-pressurization for fuel oil service system(unloader valve fails shut) b. AC plant shut down (loss of vital air topre-rotation vanes) c. L/O temp control (operators need to manually controltemp) d. LOSCA temp control (temp regulating valve inop) e. Fuel comp valves f. PT brake control (fails off, unable to apply brake) g. GTG signal air (closes fire damper) |
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1. Dry-air |
a. Considered vital (taken from vital air main)b. Engineering uses: pre-rotation vanes in AC plants,HPAC dehydrator purge c. CS: radar 1, radar 2, radio |
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1. Vital |
a. GTG/GTM blow in door panels b. GTM L/O cooler temp regulating valve c. Masker air pressure regulation valve d. Prairie air flow control valve e. Masker/GTM start transfer valve f. GTM bleed air pressure regulating valve g. GTM power turbine brake assemblies h. GTM vent dampers i. GTM motor regulating valve j. MRG L/O temperature control valve k. Fuel unloading valve l. GTG module signal air m. GTG bleed air pressure regulating valve n. MK 36 DLS hoist o. CIWS magazine handling system p. Sonar dome pressurization q. Ammo strike down elevator r. Ammo replenishment handling system |
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1. Non-vital |
a. Halon discharge piping blowouts b. Ultrasonic cleaner c. AFFF tank recharging d. Sprinkling system dry piping blowout e. Fuel oil fill and xfer system comp water valves f. Sea chest blowouts g. Rudder stock inflatable seals h. LOP control air and control valve i. Fuel oil purifier diverter valve j. Fuel purifier transfer priming valve k. Shore sea water supply valve l. Turbine water wash tank pressurization m. Chilled water expansion tank charging n. Distilling plant control equipment o. Sonar water cooler p. Electronic cooling water expansion tank charging q. SPY/FCS water cooler r. Pneumatic tool outlets s. Electronic machinery cleaning outlets t. Compartment air test fittings u. Ship’s whistle v. Pilot house window wash w. Laundry equipment |
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XO QUESTION: Pressure of system is readfrom... |
the air discharge |
