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BS EN BSI Amendments issued since publication Amd. EN was produced as the result of international discussions in which the United Kingdom took an active part. Cross-reference Publication referred to EN Corresponding British Standard BS EN Specification for face-to-face dimensions for flanged automatic steam traps A British Standard does not purport to include all the necessary provisions of a contract.
Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.
Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 22, an inside back cover and a back cover. This standard has been updated see copyright date and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.
This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April , and conflicting national standards shall be withdrawn at the latest by April EN , Industrial valves — Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems — Part 2: Classdesignated valves.
The progress in work in the standardization of the different products can require a revision of the standard by adding or subtracting some basic series. The basic series in this standard are taken from the origin series shown in Annex A informative. Changes made to the origin series will not be automatically incorporated into this standard. Face-to-face dimensions of automatic steam traps are specified in EN These normative references are cited at the appropriate places in the text and the publications are listed hereafter.
For dated references, subsequent amendments to or revisions of the cited publication apply to this European Standard, only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN , Flanged automatic steam traps — Face-to-face dimensions. For each type of valve, the basic series to be taken into consideration are given in Table 3 to Table The overall valve dimensions before assembly shall be provided by the manufacturer.
Where the design does not permit the lining to be included in the FTF and CTF dimensions given in Table 1, then the thickness of the lining may be added to the basic dimension. Figure 1 Figure 2 4? In Table 3 to Table 17 the columns of series may be incomplete.
Dimensions in millimetres 49 50 51 53 ———— 16 — — — 19 — — — 22 — — — 28 — — — 31,5 — — 38 40 54 54 40 46 54 60 42 50 57 67 44 60 64 67 46 90 70 83 48 76 95 50 95 60 — 65 — 75 — 80 — 95 — — — — — — — — — ———— ———— ———— ———— ————? Dimensions in millimetres PN 40 33 43 46 64 64 70 76 89 — — — — — — — — — 16 10? Above DN , this series does not apply to full bore ball and plug valves. DN 10 15 20 25 32 40 50 65 80 Basic series Table 7 — Diaphragm valves PN 6 7 7 FTF dimension PN 10 — PN 16 1 Dimensions in millimetres PN 25 — PN 40 1?
PN 63 — PN — — — — — 9? Table 16 — Eccentric rotary plug control valves and segmented ball control valves — Wafer type and flanged type DN 20 25 40 50 80 Basic series FTF dimension PN 10 — PN 16 — PN 25 — PN 40 76 76 1 36 1 36 a Applies to eccentric rotary plug control valves only.
Dimensions in millimetres PN 63 — PN 1 1a 18? It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.
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bs en 558-1 1996
BS EN BSI Amendments issued since publication Amd. EN was produced as the result of international discussions in which the United Kingdom took an active part. Cross-reference Publication referred to EN Corresponding British Standard BS EN Specification for face-to-face dimensions for flanged automatic steam traps A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.
BS EN 558-1
Embed Size px x x x x Industrial valves Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems. This British Standard, having been prepared under thedirection of the EngineeringSector Board, was publishedunder the authority of the Standards Board and comes into effect on 15 May EN was produced as the result of international discussions in which the United Kingdom took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.
BS EN 558-1:1996
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