National Stock Number:
4820-17-122-7326
Federal Supply Class:
4820
National Item Identification Number:
171227326
Description:
VALVE,LIQUID-CHECK
Detail:
A NORMALLY OPEN VALVE WHICH PERMITS THE PASSAGE OF AIR OR GASES IN BOTH DIRECTIONS BUT PREVENTS THE PASSAGE OF LIQUIDS IN ONE DIRECTION. THE ACTION IS CONTROLLED BY A BUOYANT FLOW CONTROL DEVICE WHICH RISES AGAINST ITS SEAT WHEN LIQUIDS ARE PRESENT THEREIN.
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