4820-01-301-7990 VALVE,BALL Index 4510-01-301-7992 VALVE,WATER MIXING

National Stock Number:
4820-01-301-7991

Federal Supply Class:
4820

National Item Identification Number:
013017991

Description:
VALVE,VACUUM BREAKING

Detail:
AN ITEM DESIGNED TO AUTOMATICALLY RELIEVE VACUUM, BY THE INTAKE OF AIR, WHEN THE INTERNAL PRESSURE FALLS BELOW ATMOSPHERIC PRESSURE. SEE ALSO VALVE, VACUUM REGULATING.


Manufacturer Information:
FF-1 .75IN73124HAYWARDINDL. PRODUCTS INC.


Techincal Specification:
BODY STYLESTRAIGHT THRU
BODY MATERIALPLASTIC, POLYVINYL CHLORIDE
END CONNECTION QUANTITY2
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FIRST END NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MEDIA FOR WHICH DESIGNEDWATER, FRESH
FURNISHED ITEMSGASKET
SPECIAL FEATURESVENT SEAL,MONEL SCREEN


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