EN “Industrial valves – Actuators – Part 3: pneumatic part-turn actuators for industrial valves – Basic requirements” • EN “ Industrial. CSN EN – Industrial valves – Actuators – Part 3: Pneumatic part-turn actuators for industrial valves – Basic requirements, Category: Find the most up-to-date version of DIN EN at Engineering
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The shaft shall have a slot and a threaded hole according to Figure 4. Calculation method for steel valve shells. The relationship between air volume V and dimensions of mounting levels 1 and 2 are given as guidelines. It is incorporated by Royal Charter.
It does not apply to pneumatic actuators which are integral parts of control valves. This is usually associated with critical valve applications e. Industrial valves – Shell design strength – Part 2: Maximum allowable stem torque limitation MAST.
At the maximum supply pressure, the maximum output torque of the selected actuator shall not exceed the maximum allowable valve stem torque limitation MAST. The actuator manufacturer’s technical documentation shall specify the corrosion protection category according to Table 2. Chemical plants, swimming pools, coastal shipyards.
Industrial valves – Testing of metallic valves – Part 2: It shall be ne to adjust the indicator when necessary. The appropriate type tests shall be repeated when the design, or the production process have been modified, which could affect the functional performances. Pneumatic part-turn actuators for industrial valves – Basic requirements – This document provides basic requirements for 157143- part-turn valve actuators, both double acting and single acting, used for on-off and modulating control duties.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. Connections shall be clearly identified with numbers 2 and 4in accordance with ISO Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. The relationship between air volume V and dimensions of connections “2” and “4” em given as guidelines.
The output drive of part-turn actuators may be an integral part or a removable component to allow it, when necessary, to be machined to suit the driven 1714-3 of the valve.
Various BSI electronic information services are also available which give details on all its products and services. Industrial valves – Actuators – Part 2: The relationship between air volume V and dimensions of connections “2” and “4” are given as guidelines.
Table 2 — Environmental corrosion categories Corrosion category Typical environments Exterior Interior C2 low Atmospheres with low level of pollution. It includes guidelines, recommendations and methods for enclosure and corrosion protection, control and testing. The final leakage values at 0,55 MPa 5,5 bar shall not exceed the rates given in Table A.
BS EN 15714-3:2009
Eh minimum duration for the leakage detection test shall be: We would be grateful if anyone finding an inaccuracy or ambiguity while usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which 1514-3 be found on the inside front cover. Buying standardsOrders for all BSI, international and foreign standards publications should beaddressed to Customer Services. Valve manufacturer, type, size, function and operating characteristics.
When 1571-3, direction of movement shall be in accordance with Table 3 below, unless otherwise specified. The mounting of positioners and signal devices to part-turn actuators is also possible with a bracket with dimensions according to the Table 7 and Figure 5. Buildings or areas with almost permanent condensation and with high pollution. Classification system and qualification procedures for type testing of valves.
Classification of environments ISO The type tests to be performed shall be those ne in Table 8. The mounting of positioners and signal devices to part-turn actuators is also possible with a bracket with dimensions according to the Table 7 and Figure 5.
Users of British Standards should make sure that they possess the latest amendments or editions. E details of these and other benefits contact Membership Administration. It shall be possible to adjust the indicator when necessary. Pressure Shell testWhen required 3 4. Coastal areas with low salinity. General introduction and designation system ISO For dated references, only the edition cited applies.
BS EN 工业阀门.执行器.第3部分：工业阀门用部分回转气压执行器.基本要求 – MBA智库文档
Eworldwide for CEN national Members. Maximum allowable stem torque limitation MAST. Various BSI electronic information services are also available whichgive details on all its products and services. Terminology and definitions www. A list of organizations represented on this committee can be obtained on een to its secretary. The aim of these guidelines is to provide a clear understanding of the torque requirements and what parameters affect the correct actuator selection.
This publication does not purport to include all the necessary provisions of a contract.