Aluminum Cam & Groove Adapter, Inch Dust Plug

For a 2 inch size, the rating is 150 PSI. Cam and groove fittings in the half-inch through 4 inch range all share that same 150 PSI ceiling. Liquid service is exactly what these are built around, though if you have a specific fluid in mind it's worth a quick call to confirm compatibility. One hard limit worth knowing up front: compressed air and steam are off the table entirely for cam and groove couplings, no exceptions.

For interchange, it matches the common cam and groove standards A-A-59326 and DIN 2828, so it is meant to interchange with other couplers and adapters built to those standards. The note to keep in mind is that 1/2 inch and 8 inch sizes generally do not interchange across manufacturers, but that does not apply to the 2 inch size.