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CAC Compression Fitting Side Inlet Style Check Valves CAC Style

Check Valves

Product Details
CAC Style - CAC Compression Fitting Side Inlet Style Check Valves

Found under the following brands: Conrader
Model: CAC Style

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The CAC has a side male compression inlet and a male outlet. Inlets are either 3/8" or 1/2". Outlet is 1/2" (MPT). Has optional 1/8" unloader port 120 degrees from inlet on hex section. Also has cold start valve on top which helps the motor on start up. Check valves control the flow of air into the receiver tank. When the compressor reaches unload pressure the check valves closes, preventing the backflow of air from the receiver tank into the discharge supply line.

To find out what size you need, measure the outside diameter of the supply line that comes from the pump that goes into your check valve. If it measures 3/8", then this diameter is the first measurement. ie CTD3812 means that the supply tube is 3/8" wide and the 12 means that the tank opening on the other end is a 1/2" pipe thread.

To determine the size of the end that fits into the tank, measure the OD of the threads, then subtract 1/4" because pipe sizes always measure 1/4" over the actual size

Where is my check valve located?

Extra Details

This was a new check valve installed less than a year ago. Due to the tanks not being drained, this check valve failed after less than a year.


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Reference Item Please Note! Price Product Image Select Qty Status
003/8Check ValveNOTE: check valve for serial numbers with the prefix (A). 90 Degree, 3/8" SIDE Compression x 1/2" MPT

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$21.95CAC3812-P1-SU3 - Check Valve-
0CompConnect, Male Adapter1/8" MPT x 1/4" compression adapter for the unloader (bleeder line).

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$3.8668-4-2 - Connect, Male Adapter-

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