{"id":374917,"date":"2024-10-20T02:41:04","date_gmt":"2024-10-20T02:41:04","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-1254-202021\/"},"modified":"2024-10-26T04:40:50","modified_gmt":"2024-10-26T04:40:50","slug":"bs-en-1254-202021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-1254-202021\/","title":{"rendered":"BS EN 1254-20:2021"},"content":{"rendered":"

This document contains definitions, thread dimension, reference data (minimum bore), supporting information (assembling instructions) and describes the test methods referenced by other parts of the EN 1254 series<\/span><\/span>.<\/p>\n

Thread dimensions comprise: wall thickness at threaded portions of fittings, dimensions of tail pipe ends for swivel fittings, dimensions of gas union connectors, thread dimensions and thread profile.<\/p>\n

Test methods comprise: leak tightness under internal hydrostatic pressure, leak tightness under internal pneumatic pressure, integrity of fabricated fitting bodies or having an ‘as cast’ microstructure, resistance to pull out of joints to metallic tubes, resistance of joints with metallic tube to vibration, resistance of joints to static flexural force, leak tightness of joints under vacuum, the resistance of joints to temperature cycling, detecting non-pressed fitting ends, resistance to stress corrosion, detection of a carbon film on the surface of copper fittings, determination of mean depth of dezincification, resistance of joints to pressure cycling, disconnection and re-use, determining if the diameter and\/or the length of engagement of a capillary end is\/are within the specified tolerance, determining the minimum length of engagement of an integral solder or brazing ring socket having a formed groove.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
8<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
9<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
12<\/td>\n4 Thread dimensions
4.1 Wall thickness at threaded portions of fittings <\/td>\n<\/tr>\n
13<\/td>\n4.2 Dimensions of tail pipe ends for swivel fittings <\/td>\n<\/tr>\n
16<\/td>\n4.3 Dimensions of gas union connectors <\/td>\n<\/tr>\n
18<\/td>\n4.4 Threaded end dimensions
4.4.1 General <\/td>\n<\/tr>\n
19<\/td>\n4.4.2 Internal ISO 7 parallel threads or EN 102261 <\/td>\n<\/tr>\n
20<\/td>\n4.4.3 Internal EN ISO 2281 parallel threads <\/td>\n<\/tr>\n
21<\/td>\n4.4.4 External ISO 7 or EN 102261 taper threads <\/td>\n<\/tr>\n
22<\/td>\n4.4.5 External Rk taper threads (modified ISO 7) <\/td>\n<\/tr>\n
23<\/td>\n4.4.6 External EN ISO 2281 parallel threads <\/td>\n<\/tr>\n
24<\/td>\n4.5 Minimum bore and cross-sectional area of fittings <\/td>\n<\/tr>\n
28<\/td>\n5 Test method for leak tightness under internal hydrostatic pressure
5.1 Introduction <\/td>\n<\/tr>\n
29<\/td>\n5.2 Principle
5.3 Apparatus
5.3.1 Pressure measurement device
5.3.2 Pressurizing device
5.3.3 Pressure connection
5.3.4 End connection
5.4 Test piece <\/td>\n<\/tr>\n
30<\/td>\n5.5 Procedure
6 Test method for leak tightness under internal pneumatic pressure
6.1 Introduction
6.2 Principle <\/td>\n<\/tr>\n
31<\/td>\n6.3 Apparatus
6.3.1 Pressure measurement device
6.3.2 Pressurizing device
6.3.3 Pressure connection
6.3.4 End connection
6.4 Test piece <\/td>\n<\/tr>\n
32<\/td>\n6.5 Procedure <\/td>\n<\/tr>\n
33<\/td>\n7 Integrity of fabricated fitting bodies or having an ‘as cast’ microstructure
7.1 Introduction
7.2 Principle
7.3 Apparatus
7.3.1 Pressure measurement device
7.3.2 Pressurizing device
7.3.3 Pressure connection
7.3.4 End sealing device
7.4 Test piece <\/td>\n<\/tr>\n
34<\/td>\n7.5 Procedure
8 Test method for resistance to pull out of joints to metallic tubes
8.1 Introduction
8.2 Principle
8.3 Apparatus <\/td>\n<\/tr>\n
35<\/td>\n8.4 Test assembly
8.5 Procedure
9 Test method for the resistance of joints with metallic tube to vibration
9.1 Introduction
9.2 Principle <\/td>\n<\/tr>\n
36<\/td>\n9.3 Apparatus
9.4 Test assembly <\/td>\n<\/tr>\n
37<\/td>\n9.5 Procedure
10 Test method for the resistance of joints to static flexural force
10.1 Introduction
10.2 Principle
10.3 Apparatus
10.3.1 Pressure measurement device
10.3.2 Pressurizing device
10.3.3 Pressure connection
10.3.4 End connection
10.3.5 Support
10.4 Test piece <\/td>\n<\/tr>\n
38<\/td>\n10.5 Procedure <\/td>\n<\/tr>\n
39<\/td>\n11 Test method for leak tightness of joints under vacuum
11.1 Introduction
11.2 Principle
11.3 Apparatus
11.3.1 Vacuum pressure measurement device <\/td>\n<\/tr>\n
40<\/td>\n11.3.2 Vacuum source (pump)
11.3.3 Isolation valve
11.3.4 End-sealing device
11.4 Test piece
11.5 Procedure <\/td>\n<\/tr>\n
41<\/td>\n12 Test method for the resistance of joints to temperature cycling (liquid applications)
12.1 Introduction
12.2 Principle
12.3 Apparatus
12.4 Test assembly <\/td>\n<\/tr>\n
43<\/td>\n12.5 Procedure
13 Test method for the resistance of joints to temperature cycling (fuel gas applications)
13.1 Introduction <\/td>\n<\/tr>\n
44<\/td>\n13.2 Principle
13.3 Apparatus
13.4 Test assembly
13.5 Procedure <\/td>\n<\/tr>\n
45<\/td>\n14 Method for detecting non-pressed fitting ends
14.1 Introduction
14.2 Principle
14.3 Apparatus <\/td>\n<\/tr>\n
46<\/td>\n14.4 Test piece
14.5 Procedure
14.6 Results <\/td>\n<\/tr>\n
47<\/td>\n15 Determination of resistance to stress corrosion
15.1 Introduction
15.2 Test piece
15.3 Procedure
15.4 Test report
16 Test method for detection of a carbon film on the surface of copper fittings
16.1 Preparation of the test piece
16.2 Procedure <\/td>\n<\/tr>\n
48<\/td>\n16.3 Detection and assessment of films
17 Determination of mean depth of dezincification
17.1 Introduction
17.2 Procedure
17.3 Expression of results <\/td>\n<\/tr>\n
49<\/td>\n18 Test method for the resistance of joints to pressure cycling
18.1 Introduction
18.2 Principle
18.3 Apparatus
18.3.1 Pressurizing device <\/td>\n<\/tr>\n
51<\/td>\n18.3.2 Pressure measurement device
18.4 Test pieces
18.5 Procedure <\/td>\n<\/tr>\n
52<\/td>\n19 Test method for disconnection and re-use
19.1 Introduction
19.2 Principle
19.3 Apparatus
19.4 Test assembly
19.5 Procedure
20 Method for determining if the diameter and\/or the length of engagement of a capillary end is\/are within the specified tolerance
20.1 Principle <\/td>\n<\/tr>\n
53<\/td>\n20.2 Apparatus <\/td>\n<\/tr>\n
57<\/td>\n20.3 Test piece
20.4 Procedure
20.5 Results
21 Method for determining the minimum length of engagement of an integral solder or brazing ring socket having a formed groove
21.1 Introduction
21.2 Principle <\/td>\n<\/tr>\n
58<\/td>\n21.3 Apparatus
21.4 Test piece
21.5 Procedure
21.6 Results <\/td>\n<\/tr>\n
59<\/td>\nAnnex A (informative)Assembling instructions
A.1 Introduction
A.2 Preparation of tube
A.2.1 Metallic tubes
A.2.2 Plastics covered tubes (EN 13349) <\/td>\n<\/tr>\n
60<\/td>\nA.2.3 Plastics pipes
A.3 Jointing procedures
A.3.1 General <\/td>\n<\/tr>\n
61<\/td>\nA.3.2 Capillary fittings
A.3.2.1 Soldering
A.3.2.2 Brazing (Hard Soldering) <\/td>\n<\/tr>\n
62<\/td>\nA.3.3 Compression fittings
A.3.3.1 Type A fittings <\/td>\n<\/tr>\n
63<\/td>\nA.3.3.2 Type A Flanged fittings
A.3.3.3 Type B fittings <\/td>\n<\/tr>\n
64<\/td>\nA.3.4 Push-fit fittings
A.3.5 Press fittings <\/td>\n<\/tr>\n
65<\/td>\nA.3.6 Fittings with threads
A.3.6.1 Introduction
A.3.6.2 General instructions <\/td>\n<\/tr>\n
66<\/td>\nA.3.6.3 Methods of application <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Copper and copper alloys. Plumbing fittings – Definitions, thread dimensions, test methods, reference data and supporting information<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n68<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":374926,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[350,2641],"product_tag":[],"class_list":{"0":"post-374917","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-23-040-40","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\/374917","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\/374926"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=374917"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=374917"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=374917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}