This document provides basic requirements for hydraulic part-turn valve actuators, both double acting and single acting, used for on-off and modulating control duties. It includes guidelines, recommendations and metho...
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标准号:
BS EN 15714-4-2009
This document provides basic requirements for hydraulic part-turn valve actuators, both double acting and single acting, used for on-off and modulating control duties. It includes guidelines, recommendations and methods for enclosure and corrosion protection, control and *** does not apply, to hydraulic actuators that are integral parts of control valves or to electro-hydraulic *** requirements or conditions of use different from those indicated in this document should be subject to negotiations between the purchaser and the manufacturer/supplier prior to *** terms and definitions applicable to this European Standard are given in EN 15714-1.
This document provides basic requirements for electric valve actuators, used for on-off and control valves. It includes guidelines for classification, design, enclosure and corrosion protection, and methods for confor...
详细信息
标准号:
BS EN 15714-2-2009
This document provides basic requirements for electric valve actuators, used for on-off and control valves. It includes guidelines for classification, design, enclosure and corrosion protection, and methods for conformity *** of electric multi-turn actuators and gearboxes supplied by the actuator manufacturer are within the scope of this document. In all other cases this European Standard applies to the electric actuator *** does not cover: solenoid actuators, electro-hydraulic actuators and electric actuators which are integral in the design of *** requirements or conditions of use different from those indicated in this document should be agreed between the purchaser and the manufacturer/supplier, prior to *** terms and definitions applicable to this European Standard are given in EN 15714-1.
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