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Its purpose and MCDU meaning will appear here.
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Valve abbreviation guide
HPVHP Bleed Valve / High-Pressure Valve - pneumatic system.
PRVPressure-Regulating Valve - engine bleed system.
HPSOV / HP SOVHigh-Pressure Shut-Off Valve - engine fuel system.
FAVFan-Air Valve. No direct FAV Alpha mnemonic is present in this catalog.
PRSOVPressure Regulating and Shut-Off Valve. Do not substitute it for PRV unless source data says so.