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BS ISO 21358:2020
Vacuum technology. Right-angle valve. Dimensions and interfaces for pneumatic actuator (British Standard)
This document defines dimensions of right-angle valves that are compatible with the mounting dimensions of elbows defined in ISO 9803-1 and ISO 9803-2.
This document covers right-angle valves with flanges defined in ISO 2861, ISO 1609 and ISO 3669.
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British Standards Institution [bsi]