4.5" Single Groove Pulley fits B Section V-Belt 5L with 5/8" Sheave Bushing BK47H Single Phase This valve usually has a

This valve usually has a 1/4" plastic or copper line that runs to the check valve or the head of the compressor

while also perpetually lubricating the  movement

1/4" COMPRESSION UNLOADER VALVE CONNECTION

• 1/8" Side Unloader Port (measures about 3/8" in diameter)

The relief pressure of this valve is set at 190 PSI and is accurate within + or - 3% of the set pressure

4.5" Single Groove Pulley fits B Section V-Belt 5L with 5/8" Sheave Bushing BK47H Single Phase This valve usually has aCast Iron 4. 5" Single Groove Belt B Section 5L Pulley w 5 8" Sheave Bushing Masterdrive single groove 4. 5" cast iron pulley sheave with 5 8" H bushing for B section belt is a high quality 2 piece pulley that measures 4. 5" outside diameter and is designed to be used with an H style bushing. This bushing inserts into the center of the pulley and slides over the shaft, as you tighten down the bolts on the H bushing it will tighten down on the shaft.