Hotspot: NWIP ISO 5640 Ballot on ISO/TC 153 N 451, Industrial valves - Mounting kits for part-turn valve actuator attachment



What is it?

The attached new work item proposal is to create a new ISO standard ISO 5640 “Mounting kits for part-turn valve actuator attachment”. It is proposed that this standard will be based upon the CEN standard EN 15081:2007 and developed in ISO/TC 153/WG 1 "Valve actuators and valve actuators attachments". The Project Leader, should the NWIP be approved, will be ISO TC153/WG 1 convenor, M. Tobias WASSER of Germany.

The attached draft document provides requirements for metallic mounting kits for part-turn on-off valves and actuator attachments to enable safe and reliable operation. It includes all components transmitting torque from actuator to valve with a maximum flange torque up to 16 000 Nm (up to F30 flange type). It applies to part-turn valves and actuators having attachment flanges and drive components as described in ISO 5211. It includes recommendations and methods for design and environmental corrosion protection. When reference is made to this document, all the requirements apply, unless otherwise agreed between the purchaser and the manufacturer/supplier, prior to order.

Why is it Important?

All companies currently involved in the specification and supply of part turn actuators, valves, or actuated valve packages according to ISO standards are likely to be affected by this proposed new standard.

International standards e.g. ISO 5211 and ISO 12490, as well as current international standard projects, show clearly that the well-established European standard EN 15081 should become an international standard. Due to the lack of an ISO standard for mounting kits, the oil and gas industry has started to quote and duplicate the contents of EN 15081, in order to make it accessible to the international public and industry. Since there is no ISO standard for mounting kits yet, the content of EN 15081 is frequently copied into normative and informative annexes of international standards (e.g. standards of ISO/TC 153 or ISO/TC 67). In order to prevent the duplication and potentially incorrect quoting of EN 15081, an international standard based on EN 15081 would benefit all parties involved.

EN 15081:2007 is itself 13 years old and acceptance of this work item will provide an opportunity to update the standard and align it with ISO 22153, ISO 12490 which have been published subsequently, as well as other ISO standards currently in development.

The UK vote on this new work item will be agreed by members of PSE/18 based on the recommendation of PSE/18/5 and take into account BVAA member views.  Consequently, the BVAA invite comments to the Secretariat on the proposed content of this standard before 25/9/2020 in order to assist BSI in casting the UK vote. Please note that the default UK vote is to abstain so please make your comments in plenty of time if you support this proposal. If there is a positive vote on the new work item there will be an opportunity to propose UK experts to work on the development of the new standard, therefore please also indicate  if you would be interested in offering to support the working group in your comments.


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