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BS 1655:1950 Specification for flanged automatic control valves for the process control industry (face-to-face dimensions)
standard by BSI Group, 07/12/1950
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Full Description
Valves of conventional pneumatic-diaphragm-operated single or double beat type. Recommendation that applies to other types of automatic control valve for process control industry.Cross References:
BS 10
BS 1560
BS 4504
BS 5150