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UNI 9245 - ITALIAN LANGUAGE - CUT-OFF DEVICES FOR GAS DISTRIBUTION AND/OR TRANSPORT NETWORKS. BUTTERFLY VALVES. Organization: UNI
MSS SP 67 - BUTTERFLY VALVES Organization: MSS
Date: 2011-01-01
Description: This Standard Practice covers two types of butterfly valves: Type I – Valves for tight shut-off Type II– Valves permitting seat leakage This Standard Practice covers flangeless (wafer-type), single flange (lugtype), and flanged end valves in size NPS 1½ through NPS 72, along with grooved end valves, and shouldered end valves, with pressure ratings in accordance with the requirements of Sections 3 and 4.
TSE - TS 12844 - COMPETENT SERVICES- FOR VALVES- RULES Organization: TSE
Date: 2002-04-12
Description: This standard includes rules for management, structural, properties, technical equipment and personnel characteristies of competent services for aatves ball, gate, stop, canical, butterfly, electrical and pneumatic (proportianal and/or on-off) slenaid check, safety, pressure, three and for mays (mixingand distrubution valve) tap, battery, bas valves used in gas installations, ext.
ULC CAN-S548 - STANDARD FOR DEVICES AND ACCESSORIES FOR WATER TYPE EXTINGUISHING SYSTEMS - FOURTH EDITION Organization: ULC
Date: 2015-09-01
Description: Valve position supervisory devices may be of a design suitable for the supervision of gate, butterfly, ball or post-indicator type valves The requirements of this Standard cover devices suitable for installation in ordinary (non-hazardous) indoor and outdoor locations.

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