Specifies tests to determine performance of pneumatic valve positioners with 3 to 15 lbf/in^2 (gauge) input signal. Method of evaluation specifies use of a valve operator of a spring-opposed or double-acting diaphragm or piston type in order to allow a ready comparison to be made between different types of positioner.Cross References:BS 1523BS 1780BS 2643BS 3512
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Method of evaluating pneumatic valve positioners with input signal of 3 to 15 lbf/in<sup>2</sup> (gauge)
BSI Group , 03/22/1967
Pages: 14
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