{"id":312861,"date":"2024-10-19T21:31:31","date_gmt":"2024-10-19T21:31:31","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-4437-32014\/"},"modified":"2024-10-25T19:33:42","modified_gmt":"2024-10-25T19:33:42","slug":"bs-iso-4437-32014","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-4437-32014\/","title":{"rendered":"BS ISO 4437-3:2014"},"content":{"rendered":"

This part of ISO 4437 specifies the characteristics of fusion fittings made from polyethylene (PE) as well as of mechanical fittings for piping systems in the field of the supply of gaseous fuels.<\/p>\n

It also specifies the test parameters for the test methods referred to in this part of ISO 4437.<\/p>\n

In conjunction with ISO 4437-1, ISO 4437-2, ISO 4437-4, and ISO 4437-5, it is applicable to PE pipes, fittings and valves, their joints, and joints with components of PE and other materials intended to be used under the following conditions:<\/p>\n

    \n
  1. \n

    the maximum operating pressure (MOP) is based on the design stress, determined from the compound minimum required strength (MRS) divided by the C<\/i> factor, and taking into account rapid crack propagation (RCP) requirements;<\/p>\n<\/li>\n

  2. \n

    a temperature of 20 \u00b0C as reference temperature for the design basis.<\/p>\n<\/li>\n<\/ol>\n

    \n

    NOTE 1 For other operating temperatures, derating coefficients are given in ISO 4437-5:2014.<\/p>\n<\/blockquote>\n

    \n

    NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.<\/p>\n<\/blockquote>\n

    This part of ISO 4437 is applicable for fittings of the following types:<\/p>\n

      \n
    • \n

      electrofusion socket fittings;<\/p>\n<\/li>\n

    • \n

      electrofusion saddle fittings;<\/p>\n<\/li>\n

    • \n

      spigot end fittings (for butt fusion using heated tools and electrofusion socket fusion);<\/p>\n<\/li>\n

    • \n

      socket fusion fittings;<\/p>\n<\/li>\n

    • \n

      mechanical fittings.<\/p>\n<\/li>\n<\/ul>\n

      The fittings can for example be in the form of couplers, saddles, equal and reduced tees, reducers, elbows, bends, or end caps.<\/p>\n

      \n

      NOTE 3 Fabricated fittings are normally not used for gas applications except for larger dimensions or in the absence of other solutions. Guidance can be found in ISO 4427-3:2007, Annex B.[<\/sup>2<\/sup>]<\/sup><\/p>\n<\/blockquote>\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
      PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
      6<\/td>\nForeword <\/td>\n<\/tr>\n
      7<\/td>\nIntroduction <\/td>\n<\/tr>\n
      9<\/td>\nSection sec_1
      Section sec_2
      1\tScope
      2\tNormative references <\/td>\n<\/tr>\n
      11<\/td>\nSection sec_3
      Section sec_3.1
      Section sec_3.2
      Section sec_3.2.1
      Section sec_3.2.2
      Section sec_3.3
      Section sec_3.4
      Section sec_3.5
      Section sec_3.6
      3\tTerms and definitions, symbols, and abbreviations <\/td>\n<\/tr>\n
      12<\/td>\nSection sec_3.7
      Section sec_4
      Section sec_4.1
      Section sec_4.2
      Section sec_4.2.1
      Section sec_4.2.2
      Section sec_4.2.3
      4\tMaterials
      4.1\tPE compound
      4.2\tMaterial for non-polyethylene parts <\/td>\n<\/tr>\n
      13<\/td>\nSection sec_4.2.4
      Section sec_5
      Section sec_5.1
      Section sec_5.2
      Section sec_5.3
      Section sec_5.4
      Section sec_5.5
      5\tGeneral characteristics
      5.1\tAppearance
      5.2\tColour
      5.3\tDesign
      5.4\tAppearance of factory made joints
      5.5\tElectrical characteristics for electrofusion fittings <\/td>\n<\/tr>\n
      14<\/td>\nSection sec_6
      Section sec_6.1
      Section sec_6.2
      Section sec_6.2.1
      Table tab_a
      Figure fig_1
      6\tGeometrical characteristics
      6.1\tMeasurement of dimensions
      6.2\tDimensions of electrofusion socket fittings <\/td>\n<\/tr>\n
      15<\/td>\nTable tab_1 <\/td>\n<\/tr>\n
      16<\/td>\nSection sec_6.2.2
      Table tab_2
      Section sec_6.2.3
      Section sec_6.2.4
      Section sec_6.2.5
      Section sec_6.3
      6.3\tDimensions of electrofusion saddle fittings <\/td>\n<\/tr>\n
      17<\/td>\nTable tab_b
      Figure fig_2
      Section sec_6.4
      Section sec_6.4.1
      6.4\tDimensions of spigot end fittings <\/td>\n<\/tr>\n
      18<\/td>\nTable tab_c
      Figure fig_3 <\/td>\n<\/tr>\n
      19<\/td>\nTable tab_3
      Section sec_6.4.2 <\/td>\n<\/tr>\n
      20<\/td>\nSection sec_6.4.3
      Section sec_6.4.4
      Section sec_6.5
      Section sec_6.6
      Section sec_6.6.1
      Section sec_6.6.2
      Section sec_6.6.3
      Section sec_6.6.4
      Section sec_7
      Section sec_7.1
      6.5\tDimensions of socket fusion fittings
      6.6\tDimensions of mechanical fittings
      7\tMechanical characteristics
      7.1\tGeneral <\/td>\n<\/tr>\n
      21<\/td>\nSection sec_7.2
      Section sec_7.3
      Section sec_7.4
      7.2\tRequirements
      7.3\tPerformance requirements
      7.4\tModifications of the fitting <\/td>\n<\/tr>\n
      22<\/td>\nTable tab_4 <\/td>\n<\/tr>\n
      23<\/td>\nTable tab_5 <\/td>\n<\/tr>\n
      24<\/td>\nTable tab_6
      Section sec_8
      Section sec_8.1
      Section sec_8.2
      8\tPhysical characteristics
      8.1\tConditioning
      8.2\tRequirements <\/td>\n<\/tr>\n
      25<\/td>\nTable tab_7
      Section sec_9
      Section sec_10
      9\tPerformance requirements
      10\tTechnical file <\/td>\n<\/tr>\n
      26<\/td>\nSection sec_11
      Section sec_11.1
      Section sec_11.1.1
      Section sec_11.1.2
      Section sec_11.1.3
      Section sec_11.1.4
      Section sec_11.1.5
      Section sec_11.2
      Table tab_8
      11\tMarking
      11.1\tGeneral
      11.2\tMinimum required marking of fittings <\/td>\n<\/tr>\n
      27<\/td>\nSection sec_11.3
      Section sec_11.4
      Section sec_12
      11.3\tAdditional marking
      11.4\tFusion system recognition
      12\tDelivery conditions <\/td>\n<\/tr>\n
      28<\/td>\nAnnex sec_A
      Table tab_A.1
      Table tab_A.2
      Annex\u00a0A
      \n(normative)<\/p>\n

      Socket fusion fittings <\/td>\n<\/tr>\n

      29<\/td>\nTable tab_d
      Figure fig_A.1 <\/td>\n<\/tr>\n
      30<\/td>\nAnnex sec_B
      Annex sec_B.1
      Table tab_e
      Figure fig_B.1
      Annex\u00a0B
      \n(informative)<\/p>\n

      Examples of typical terminal connection for electrofusion fittings <\/td>\n<\/tr>\n

      31<\/td>\nTable tab_f
      Figure fig_B.2 <\/td>\n<\/tr>\n
      32<\/td>\nAnnex sec_B.2
      Table tab_g
      Figure fig_B.3 <\/td>\n<\/tr>\n
      33<\/td>\nAnnex sec_C
      Annex sec_C.1
      Annex sec_C.2
      Annex sec_C.2.1
      Annex sec_C.2.2
      Annex sec_C.2.3
      Annex sec_C.3
      Annex sec_C.4
      Annex\u00a0C
      \n(normative)<\/p>\n

      Short-term pressure test method <\/td>\n<\/tr>\n

      34<\/td>\nAnnex sec_C.5 <\/td>\n<\/tr>\n
      35<\/td>\nAnnex sec_D
      Annex sec_D.1
      Annex sec_D.2
      Annex sec_D.3
      Annex sec_D.4
      Annex sec_D.5
      Annex\u00a0D
      \n(normative)<\/p>\n

      Tensile test for fitting\/pipe assemblies
      Annex\u00a0D
      \n(normative)<\/p>\n

      Tensile test for fitting\/pipe assemblies <\/td>\n<\/tr>\n

      37<\/td>\nAnnex sec_E
      Annex sec_E.1
      Annex sec_E.2
      Annex sec_E.3
      Annex sec_E.4
      Annex sec_E.5
      Annex\u00a0E
      \n(informative)<\/p>\n

      Formulae for calculating the equivalent dimensions of non-metric electrofusion socket fitting series
      Annex\u00a0E
      \n(informative)<\/p>\n

      Formulae for calculating the equivalent dimensions of non-metric electrofusion socket fitting series <\/td>\n<\/tr>\n

      38<\/td>\nAnnex sec_E.6
      Annex sec_E.7 <\/td>\n<\/tr>\n
      39<\/td>\nReference ref_1
      Reference ref_2
      Reference ref_3
      Reference ref_4
      Reference ref_5
      Reference ref_6
      Reference ref_7
      Reference ref_8
      Bibliography
      Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

      Plastics piping systems for the supply of gaseous fuels. Polyethylene (PE) – Fittings<\/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>\n42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":312870,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-312861","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/312861","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\/312870"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=312861"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=312861"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=312861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}