Prevost Air Fuse (1/2" Male to
1/2" Female) -
this safety excess flow check valve is designed to
automatically shut off air flow upon a sudden break in the air
line, thereby protecting occupants and property from injury and
damage cause by "whipping" hoses. This item is
recommended for larger shops with 60 gallon+ tanks and/or plumbed
installations. Mobile contractors should also use this check
valve with large "tow behind" compressors and 1/2"
or larger supply hoses.
The valve should be
installed after the regulator at the wall drops or after the
compressor and should be matched to the diameter of hose being
used.... 3/8" ID hose (or larger) uses the 3/8" valve, 1/2"
ID hose (or larger) uses the 1/2" valve and the
3/4" ID hose (or larger) uses a 3/4"valve. Reducer
bushings should never be used as there might not be adequate CFM
flow during a hose (or line) break to shut off the air flow
through the safety valve. Air flow must be in direction of the
arrow on the check valve.
Check valve allows
full unrestricted flow of air while in normal (open) position.
Entire unit is corrosion free (aluminum body, stainless steel
spring). It automatically re-sets itself after repair is made.