<https://camlockdirect.com/products/aluminum-2-male-camlock-dust-plug-usa#product>
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"Type \"DP\" aluminum 2 inch male camlock (Cam &amp; Groove) dust plug. Under no circumstances should cam and groove couplings be used for compressed air or steam service! ConnectionsThe male side of this adapter will only connect to 2 inch female camlockHow it works\nTo make a connection, simply slide the camlock adapter into the camlock coupling and with normal hand pressure, press the cam levers down.\nUncoupling is as quick and simple as coupling. Just lift the cam arms and remove the adapter.\nCam and groove couplings, also called camlock fittings or quick connect fittings, are used in most industries as a hose connection to avoid leakage. The cam lock type of coupling is popular because it is considered to be a simple and economical way to reconnect and disconnect.Cam and Groove Couplings Industries\nSteel foundries\nMines\nConstruction\nChemical\nPetroleum\nSanitary\nGovernment\nNuclear\nAviation\nMarine\nRail\nStorage\nDry bulk\nApplications\nWine\nFood\nDrugs\nReverse osmosis systems\nWater treatment\nWater transport\nIrrigation\nWaste / vacuum trucks\nFuel delivery\nGrain movement\nHydraulic oil, coolants, gasoline and petroleum products\nBio-fuel\nSalt water\nWaste water\nChemical movement &amp; storage\nSand\nGrout\nCement\nVarnish\nFlour\nPellets\n"
<https://camlockdirect.com/products/aluminum-2-male-camlock-dust-plug-usa>