{"id":268639,"date":"2024-10-19T17:58:09","date_gmt":"2024-10-19T17:58:09","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-12516-22014\/"},"modified":"2024-10-25T14:02:40","modified_gmt":"2024-10-25T14:02:40","slug":"bs-en-12516-22014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-12516-22014\/","title":{"rendered":"BS EN 12516-2:2014"},"content":{"rendered":"

This European Standard specifies the method for the strength calculation of the shell with respect to internal pressure of the valve.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nContents Page <\/td>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
8<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Symbols and units
Table 1 \u2014 Symbols characteristics and units <\/td>\n<\/tr>\n
14<\/td>\n4 General conditions for strength calculation <\/td>\n<\/tr>\n
15<\/td>\nFigure 1 \u2014 Composition of section thickness and tolerance allowances
5 Design pressure
6 Nominal design stresses for pressure parts other than bolts
6.1 General <\/td>\n<\/tr>\n
16<\/td>\nTable 2 \u2014 Nominal design stresses (allowable stresses)
6.2 Steels and cast steels other than defined in 6.3, 6.4 or 6.5
6.3 Austenitic steel and austenitic cast steel with a minimum rupture elongation not less than 30 % <\/td>\n<\/tr>\n
17<\/td>\n6.4 Austenitic steel and austenitic cast steel with a minimum rupture elongation not less than 35 %
6.5 Ferritic and martensitic cast steel
6.6 Creep conditions
7 Calculation methods for the wall thickness of valve bodies
7.1 General <\/td>\n<\/tr>\n
18<\/td>\n7.2 Wall thickness of bodies and branches outside crotch area
7.2.1 General
7.2.2 Cylindrical bodies or branches <\/td>\n<\/tr>\n
19<\/td>\n7.2.3 Spherical bodies or branches
7.2.4 Conical bodies or branches <\/td>\n<\/tr>\n
20<\/td>\nFigure 2 \u2014 Cone calculation coefficient <\/td>\n<\/tr>\n
21<\/td>\nTable 3 \u2014 Cone calculation coefficient
7.2.5 Bodies or branches with oval or rectangular cross-sections
7.2.5.1 General <\/td>\n<\/tr>\n
22<\/td>\n7.2.5.2 Oval-shaped cross sections
Figure 4 \u2014 Calculation coefficient B03 for location 3 <\/td>\n<\/tr>\n
23<\/td>\nFigure 5 \u2014 Calculation coefficient Bn for oval-shaped cross-sections <\/td>\n<\/tr>\n
24<\/td>\nFigure 6 \u2014 Examples of changes in cross-section B – B in oval basic bodies <\/td>\n<\/tr>\n
26<\/td>\n7.2.5.3 Rectangular cross sections
Figure 7 \u2014 Calculation coefficient Bn for rectangular cross-sections <\/td>\n<\/tr>\n
27<\/td>\nFigure 8 \u2014 Correction factor k for short casing bodies <\/td>\n<\/tr>\n
28<\/td>\n7.3 Wall thickness in the crotch area
Figure 9 \u2014 Calculation procedure in the crotch area <\/td>\n<\/tr>\n
29<\/td>\nTable 4 \u2014 Calculation formulae
7.4 Examples of pressure-loaded areas Ap and metallic cross-sectional areas Af
7.4.1 General <\/td>\n<\/tr>\n
30<\/td>\n7.4.2 Cylindrical valve bodies
Figure 10 \u2014 Cylindrical valve body <\/td>\n<\/tr>\n
31<\/td>\nFigure 11 \u2014 Angle valve
Figure 12 \u2014 Angle screw-down valve <\/td>\n<\/tr>\n
32<\/td>\nFigure 13 \u2014 Cylindrical valve body with oblique branch
Figure 14 \u2014 Angle pattern valve body
7.4.3 Spherical valve bodies <\/td>\n<\/tr>\n
33<\/td>\nFigure 15 \u2014 Spherical valve body
7.4.4 Oval and rectangular cross-sections <\/td>\n<\/tr>\n
34<\/td>\n7.4.5 Details
Figure 16 \u2014 Example of a closure <\/td>\n<\/tr>\n
35<\/td>\nFigure 17 \u2014 Example of an end connection
Figure 18 \u2014 Example of an end connection <\/td>\n<\/tr>\n
36<\/td>\nFigure 19 \u2014 Example of a flanged connection with blind holes
Figure 20 \u2014 Example of a thick-walled body <\/td>\n<\/tr>\n
37<\/td>\nFigure 21 \u2014 Example of opening reinforcement
Figure 22 \u2014 Examples of opening reinforcement
8 Calculation methods for bonnets and covers
8.1 General
8.2 Covers made of flat plates
8.2.1 General <\/td>\n<\/tr>\n
38<\/td>\nFigure 23 \u2014 Calculation coefficient Cy for flat plates with supplementary marginal moment acting in the same sense as the pressure load <\/td>\n<\/tr>\n
39<\/td>\nFigure 24 \u2014 Opening factor Cz for flat plates with additional marginal moment <\/td>\n<\/tr>\n
41<\/td>\nFigure 25 \u2014 Calculation coefficient Cx for rectangular (1) or elliptical flat plates (2) <\/td>\n<\/tr>\n
42<\/td>\n8.2.2 Circular cover without opening, with
Figure 26 \u2014 Cover (direct loading) with full face gasket
Figure 27 \u2014 Cover with gasket (direct loading) entirely within the bolt circle <\/td>\n<\/tr>\n
43<\/td>\nFigure 28 \u2014 Cover with gasket (not subjected to direct loading) entirely within the bolt circle
8.2.3 Circular covers with concentric circular opening, with
Figure 29 \u2014 Cover with gasket (direct loading) entirely within the bolt circle
Figure 30 \u2014 Cover with gasket (not subjected to direct loading) entirely within the bolt circle <\/td>\n<\/tr>\n
44<\/td>\nFigure 31 \u2014 Cover with central nozzle gasket (direct loading) entirely within the bolt circle
8.2.4 Non-circular covers (elliptical or rectangular) <\/td>\n<\/tr>\n
45<\/td>\nFigure 33 \u2014 Diameter of non-circular covers
8.2.5 Special covers made of flat circular plates for specific load and clamping conditions <\/td>\n<\/tr>\n
46<\/td>\nFigure 34 \u2014 Calculation coefficients BP, BF and BM
Figure 35 \u2014 Flat plate with annular groove <\/td>\n<\/tr>\n
48<\/td>\nTable 5 \u2014 Flat circular plates and annular plates \u2014 Bending moments as a function of load cases and clamping conditions <\/td>\n<\/tr>\n
56<\/td>\nTable 6 \u2014 Application cases of circular plates with non-reinforced centre hole and with reinforced centre hole <\/td>\n<\/tr>\n
57<\/td>\n8.3 Covers consisting of a spherically domed end and an adjoining flanged ring
8.3.1 General
Figure 36 \u2014 Spherically domed end <\/td>\n<\/tr>\n
58<\/td>\nFigure 37 \u2014 Deep dishes spherically domed end
8.3.2 Wall thickness and strength calculation of the spherical segment <\/td>\n<\/tr>\n
59<\/td>\nFigure 38 \u2014 Calculation coefficient
8.3.3 Calculation of the flanged ring
8.3.3.1 Strength condition
8.3.3.2 Forces and moments of Formulae (126) and (127) <\/td>\n<\/tr>\n
60<\/td>\n8.3.3.3 Forces in the moment Formulae (129) and (130)
Table 7 \u2014 Lever arms of the forces in the moment formulae <\/td>\n<\/tr>\n
61<\/td>\n8.3.3.4 Other geometrical dimensions in the Formulae (126) and (127)
8.3.3.5 Diameter of centre of gravity
8.3.4 Reinforcement of the stuffing box area
8.4 Dished heads
8.4.1 General remarks <\/td>\n<\/tr>\n
62<\/td>\n8.4.2 Solid dished heads
Figure 39 \u2014 Solid dished head <\/td>\n<\/tr>\n
63<\/td>\nFigure 40 \u2014 Calculation coefficient \u03b2
8.4.3 Dished heads with opening
Figure 41 \u2014 Dished head with opening <\/td>\n<\/tr>\n
64<\/td>\nFigure 42 \u2014 Dished head with branch (welded-in tubular reinforcement)
Figure 43 \u2014 Dished head with necked opening <\/td>\n<\/tr>\n
65<\/td>\nFigure 44 \u2014 Dished head with disc-shaped reinforcement
8.4.4 Allowances on the wall thickness <\/td>\n<\/tr>\n
66<\/td>\n9 Calculation method for pressure sealed bonnets and covers
Figure 45 \u2014 Self-sealing closure <\/td>\n<\/tr>\n
68<\/td>\n10 Calculation methods for flanges
10.1 General
Figure 46 \u2014 Types of flange connections
10.2 Circular flanges
10.2.1 General <\/td>\n<\/tr>\n
69<\/td>\n10.2.2 Flanges with tapered neck <\/td>\n<\/tr>\n
70<\/td>\nFigure 47 \u2014 Flange with tapered neck <\/td>\n<\/tr>\n
71<\/td>\n10.2.3 Flanges greater than DN 1 000 <\/td>\n<\/tr>\n
72<\/td>\n10.2.4 Welding neck with tapered neck according to Figure 48
Figure 48 \u2014 Welding neck with tapered neck <\/td>\n<\/tr>\n
73<\/td>\n10.2.5 Weld-on flanges
10.2.5.1 Weld-on flanges in accordance with Figure 49, design A and design B, and integral flange in accordance with Figure 50
Figure 49 \u2014 Weld-on flanges
Figure 50 \u2014 Integral flange <\/td>\n<\/tr>\n
74<\/td>\n10.2.5.2 Welded-on collars in accordance with Figure 51
Figure 51 \u2014 Welded-on collar <\/td>\n<\/tr>\n
75<\/td>\nTable 8 \u2014 Field of application of various weld-on flanges <\/td>\n<\/tr>\n
76<\/td>\n10.2.6 Reverse flanges
Figure 52 \u2014 Reverse flange
10.2.7 Loose flanges <\/td>\n<\/tr>\n
77<\/td>\nFigure 53 \u2014 Loose flange <\/td>\n<\/tr>\n
78<\/td>\n10.3 Oval flanges
10.3.1 Oval flanges in accordance with Figure 54
Figure 54 \u2014 Oval flange with two bolts <\/td>\n<\/tr>\n
80<\/td>\n10.3.2 Oval flanges in accordance with Figure 55
Figure 55 \u2014 Oval flange with more than two bolts <\/td>\n<\/tr>\n
81<\/td>\nFigure 56 \u2014 Correction factor B5 of Formula (217) <\/td>\n<\/tr>\n
82<\/td>\n10.4 Rectangular or square flanges
10.4.1 Rectangular or square flanges in accordance with Figure 57
Figure 57 \u2014 Rectangular or square flange
10.4.2 Rectangular slip-on flanges in accordance with Figure 58
Figure 58 \u2014 Rectangular or square slip-on flange <\/td>\n<\/tr>\n
83<\/td>\n10.5 Calculation of the bolt diameter
10.5.1 Design temperature
10.5.2 Diameter of the nominal tensile stress <\/td>\n<\/tr>\n
84<\/td>\n10.5.3 Load cases
10.5.4 Safety factors and allowances
Table 9 \u2014 Safety factors
11 Calculation methods for glands
11.1 Loads <\/td>\n<\/tr>\n
85<\/td>\n11.2 Gland bolts
11.3 Gland flanges
11.4 Other components
12 Fatigue
13 Marking <\/td>\n<\/tr>\n
86<\/td>\nAnnex A (informative) Characteristic values of gaskets and joints <\/td>\n<\/tr>\n
87<\/td>\nTable A.1 \u2014 Characteristic values of gaskets and joints <\/td>\n<\/tr>\n
98<\/td>\nAnnex B (informative) Calculation procedure
Figure B.1 \u2014 Sections for calculating the strength of valve bodies with branch <\/td>\n<\/tr>\n
100<\/td>\nAnnex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97\/23\/EC
Table ZA.1 \u2014 Correspondence between this European Standard and Directive 97\/23\/EC (PED) <\/td>\n<\/tr>\n
101<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Industrial valves. Shell design strength – Calculation method for steel valve shells<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2014<\/td>\n104<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":268641,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[358,2641],"product_tag":[],"class_list":{"0":"post-268639","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-23-060-01","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/268639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/268641"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=268639"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=268639"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=268639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}