Cage calls this: medium pressure - double window - flanged sight flow indicator; not for vertical down flows; material: body: bronze, flapper: 316 stainless steel; glass: tempered borosilicate, seals: neoprene, rotator: polytetrafluoroethylene.
An item so designed to have a portion or all of its body transparent to permit the visual examination of the amount of liquid in a pressure vessel, boiler, evaporator, still, processing tank, reservoir, pipe tubing line, and the like, and/or to determine the flow to a lubricated part. It may also be provided with an element that changes colors to indicate changes in moisture content. The item may have a means for refilling. Excludes indicator, liquid quantity and indicator, rate of flow.
Classification: Instruments and apparatus for measuring or checking the flow or level of liquids, nesoi
NSN 6135-01-657-0554
NSN 5950-01-399-0509
NSN 5965-00-362-2158
NSN 5910-01-147-5722
NSN 6685-01-596-5654
NSN 5935-00-988-5046
NSN 6320-00-857-4073
NSN 5950-01-140-5602
NSN 6220-00-710-7289
NSN 6150-01-423-7487
NSN 5999-01-415-5090
NSN 6150-01-297-6232