WHAT TYPE OF ORIFICE METERS DO YOUR UNIVERSAL PLATES WORK WITH? RJ Machine Universal Orifice Plates are compatible with all commercially available dual chamber and single chamber orifice fittings. By frontierMedia|2018-12-04T12:24:24-06:00November 8th, 2018|ORIFICE PLATES|0 Comments Share This Story, Choose Your Platform! FacebookTwitterLinkedInPinterest