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ANSI B40.2 1991 Edition, January 1, 1991
Complete Document
Superseded By: ASME B40.100
Diaphragm Seals
Additional Comments: CNCL S/S ASME B40.100
Page Count:32
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This Standard is confined to mechanical separators utilizing diaphragms or bladders together with a sealed liquid to transmit pressure from the process medium to the pressure element assembly of pressure gauges or other pressure measuring instruments.

It does not include diaphragm actuated pressure instruments that employ mechanical linkages to transmit the applied pressure or other separation devices designed to protect the pressure element assembly.