Issue Dae: June 6 15 Revision B June 2010 RECOMMENDAION FOR INERCHANGEABE UD BO AND A END UD FOR AI EC 6A FANGE ECHNICA REOR R501 Revision B AWHEM publicaions may be use by anyone esiring o o so. Every effor has been mae by he Associaion o assure he accuracy an reliabiliy of he aa conaine in hem; however he Associaion makes no represenaion warrany or guaranee in connecion wih his publicaion an hereby expressly isclaims any liabiliy or responsibiliy for loss or amage resuling from is use or for he violaion of any feeral sae or municipal regulaion wih which his publicaion may conflic. Associaion of Well Hea Equipmen Manufacurers os Office Box 66 Bellaire exas 77401
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 2 ABE OF CONEN ecion 1.0 General................................................................. 3 1.1 urpose................................................................. 3 1.2 Reference Documen........................................................ 3 1.3 Definiions.............................................................. 3 1.4 Applicaion.............................................................. 3 2.0 Meho of calculaing su bol lenghs for ype 6B an 6BX flanges...................... 4 2.1 u bol lengh able for 6B flange connecions wih "R" an "RX" gaskes................. 5 2.2 u bol lengh able for 6BX flange connecions................................... 6 3.0 Meho of calculaing ap en su lenghs for ype 6B an 6BX flanges.................... 7 3.1 ap en su lengh able for 6B sue flange connecions wih "R" an "RX" gaskes......... 8 3.2 ap en su lengh able for 6BX sue flange connecions........................... Appenix A - u bol lengh able for 6B flange connecions wih "R" gaskes......................... 10 Appenix B - ap en su lengh able for 6B sue flange connecions wih "R" gaskes................
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 3 1.0 GENERA his AWHEM Recommenaion complimens an exens bu oes no conflic wih AI pec 6A. 1.1 UROE his AWHEM Recommenaion esablishes efinie imensions for su bols an ap en sus for use wih AI pec 6A flanges/sue flange connecions an provies for imensionally inerchangeable su bols an ap en sus for AI pec 6A flanges/sue flange connecions. u bols an ap en sus ha may have oher lenghs ec. for special purposes an comply wih he requiremens of AI pec 6A are beyon he scope of his ocumen. 1.2 REFERENCE DOCUMEN AI pec 6A. Noe: his AWHEM Recommenaion erives is basis from AI pec 6A an hose sanars reference herein. Any subsequen supplemens o AI pec 6A 17 h Eiion or subsequen eiions issue shall require review an revision of his AWHEM Recommenaion o assure is applicaion. 1.3 DEFINIION: engh (ap En u or u Bol) - Measuremen en o en incluing poins. engh Nu En hrea - 2-1/2 x Diameer = Minimum hrea lengh of full hreas measure from he en of he su. engh ap En hrea - One iameer + maximum poin = minimum hrea lengh measure from he en of he su o he en of hrea run ou (o he las scrach on cu hreas or o he las impression of hreas mae by oher means). oin - he respecive appe holes. En porion of he su ha feaures incomplee hreas o faciliae hrea engagemen. he maximum lengh of he poin shall equal 1.5 imes he pich of he hrea. u Bols (For hrough Bol Flanges) - us ha have hreas over heir full lengh or may have an unhreae porion on he cenral area of he boy iameer. ap En us (For ue Flanges) - us hreae on each en wih an unhreae porion on he boy iameer. he hrea lengh imension on one en conrols he eph ha ha en will engage ino a appe hole an also conrols he exension lengh of he su beyon a sue flange. hreas - All sus an bols shall have Class 2A unifie inch screw hreas per AME B1.1-18 (Revision of ANI B1.1-182) anar. ize 1" an below shall have UNC hreas. ize 1-1/8" an above shall have 8 hreas per inch. 1.4 AICAION AI pec 6A "6B" flanges may use "R" or "RX" gaskes "RX" gaskes proucing greaer sanoff beween flanges. ables for "6B" flanges in his ocumen show su bol an ap en su lenghs ha will accommoae boh "R" an "RX" gaskes. ome equipmen esigns provie very lile nu an wrench clearance so occasions may arise when manufacurers or users mus insall shorer su bols or ap en sus when using he "R" gaskes. For his reason Appenices A an B follow in his ocumen o provie lenghs for "R" gaskes only. NOE: he manufacurer shall have an use a means o emonsrae ha his hreaing process prouces sufficien full hreas on he su o achieve one (1) iameer of engagemen wih
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 4 2.0 MEHOD OF CACUAING UD BO FOR YE 6B AND 6BX FANGE 2.0a CACUAION. he following formula was use in esablishing su bol lenghs lise in he ables an is inclue here for he convenience of inusry. engh shown in ables resuls from rouning as specifie in paragraph 2.0b. Where: = 2( + + ) + + 2() = Calculae su bol lengh. = oal flange hickness. = lus olerance for flange hickness. = Heavy hex nu hickness (equals nominal bol iameer; see ANI B 18.2.2: quare an Hex Nus). = Flange face sanoff. = 0 for BX assemblies. ee Figure 2.0-1. = Maximum en poin heigh (1.5 x ich of hrea). 2.0b ROUNDING OFF ROCEDURE. If is 0.010 inch (or more) greaer han any 1/4 inch incremen roun off upwar o he nex 1/4 inch incremen; if less han 0.010 inch roun off ownwar o he nex 1/4 inch incremen. 2.0c END -HEIGH OF UD BO. he en poin is he en porion of a su bol beyon he complee hrea; an may be chamfere roune or sheare. he maximum heigh of each en poin shall be 1.5 x pich of hrea. 2.0 FANGE FACE ANDOFF VAUE. he approximae isance beween faces of mae-up flanges is given in AI pec 6A for R an RX ring gaskes. Figure 2.0-1 NO ANDOFF AI YE 6B FANGE WIH R GAKE AI YE 6B FANGE WIH RX GAKE AI YE 6BX FANGE HEIGH UD BO WIH NU
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 5 2.1 UD BO ABE FOR 6B FANGE CONNECION WIH "R" AND "RX" GAKE ACCOMMODAE "R" AND "RX" YE GAKE DIA = 2( + + ) + + 2( ) oal flange hickness. lus olerence for flange hickness. Heavy hex nu hickness. Flange face sanoff. (wih "RX" gaske ) oin Max. (1.5 X ich) FANGE IZE 2-/16 2-/16 2-/16 olerance on bol lengh: + 1/8 + 1/4-0 - 0 BO DIA. 0.625 FANGE BO IZE DIA. 6.500 6.500 5.500 7.000 7.000 5.750 6.500 7.750 6.500 7.500 8.500 7.250 8.250 10.500 21-1/4 20-3/4 7.500 8.500 1 8.500.500 1.250 10.000 14.250.500 1 1 12.250 12.250 1 inch for lenghs up o 12 inches. inch for lenghs over 12 inches.
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 6 2.2 UD BO ABE FOR 6BX FANGE CONNECION "BX" YE GAKE NO ANDOFF DIA = 2( + + ) + + 2( ) oal flange hickness. lus olerence for flange hickness. Heavy hex nu hickness. Flange face sanoff. oin Max. (1.5 X ich) FANGE BO FANGE BO IZE DIA. IZE DIA. 1-13/16 5.500 1.750 15.250 1-13/16 1 6.000 1 1-13/16 7.750 2.750 23.750 5.500 12.750 1 6.500 17.750 8.500 1 2.250 2 2-/16 6.500 3.000 2.750 2-/16 1 7.250 14.750 2-/16.500 17.750 3-1/16 7.250 18-3/4 17.750 3-1/16 1 8.000 18-3/4 2.250 22.750 3-1/16 10.250 18-3/4 1 3.000 26.750 8.500 21-1/4 1.000 1.750 21-1/4 24.750 1.750 1 26-3/4 1.750 14.250.250 26-3/4 17.500 1.500 30 14.500.750 30 17.750 1 13.000 17.750 13.500 1 16.000 21.750 olerance on bol lengh: + 1/8 +1/4 - - 0 0 inch for lenghs up o 12 inches. inch for lenghs over 12 inches.
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 7 3.0 MEHOD OF CACUAING A END UD FOR YE 6B AND 6BX FANGE 3.0a CACUAION. he following formula was use in esablishing ap en su lenghs lise in he ables an is inclue here for convenience of inusry. engh shown in ables resuls from rouning as specifie in paragraph 3.0b. Where: = + + + + + + RF = Calculae ap en su lengh. = oal flange hickness. = lus olerance for flange hickness. = Heavy hex nu hickness (equals nominal bol iameer; see ANI B 18.2.2: quare an Hex Nus). = Flange face sanoff. = 0 for BX assemblies. ee Figure 3.0-1. = Maximum en poin heigh (1.5 x ich of hrea). = ap en hrea lengh maximum [(one iameer + 1.5 pich) + 1/16-0]. RF = A amoun of raise face presen on sue flanges if no omie o he lengh of sus in able. 3.0b ROUNDING OFF ROCEDURE. A 1/16 inch o he calculae lengh an hen roun up o he nex 1/8 inch incremen afer his aiion. his rouning proceure allows for variaion in su insallaion mehos an assures sufficien exension for full nu engagemen. 3.0c END -HEIGH OF A END UD. he en poin is he en porion of a su bol beyon he complee hrea an may be chamfere roune or sheare. he maximum heigh of each en poin shall be 1.5 x pich of hrea. 3.0 A END HREAD. One iameer of ap en su + 1.5 pich of hrea +1/16-0 maximum (his inclues poin heigh). ee 1.3 Definiions engh ap En hrea. 3.0e NU END HREAD. 2.5 x iameer of ap en su minimum. However if necessary his lengh shall be limie o provie minimum unhreae porion equal o one hrea pich beween he ap en hreas an nu en hreas. 3.0f FANGE FACE ANDOFF VAUE. he approximae isance beween faces of mae-up flanges is given in AI pec 6A for R an RX ring gaskes. Figure 3.0-1 NO ANDOFF AI YE 6B FANGE WIH R GAKE AI YE 6B FANGE WIH RX GAKE AI YE 6BX FANGE HEIGH A END UD WIH NU
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 8 3.1 A END UD ABE FOR 6B UDDED FANGE CONNECION WIH "R" AND "RX GAKE ACCOMMODAE "R" AND "RX" YE GAKE A END HREAD +1/16-0 (D+1.5 ICH) MINIMUM UNHREADED ORION HA BE EQUA O 1 HREAD ICH NU END HREAD (2-1/2 D) FU HREAD MIN. RF = + + + + + + RF oal flange hickness. lus olerance for flange hickness. Heavy hex nu hickness. Flange face sanoff. (wih "RX" gaske) oin maximum (1.5 X ich) ap en hrea lengh maximum. [(one iameer + 1.5 ich) + 1/16-0] A amoun of raise face presen on sue flanges if no omie o he lengh of sus in able. FANGE IZE 2-/16 2-/16 2-/16 UD DIA. 0.625 olerance on ap en hrea lengh: + 1/16 - A END NU END FANGE UD A END NU END IZE DIA. 0.761 1.563 3.625 5.375 1.042 4.625 5.875 1.042 4.625 1.563 3.438 7.500 0.00 4.000 5.875 5.125 1.563 3.438 6.750 5.125 1.813 4.063 8.500 0.00 4.125 1.438 3.125 6.500 1.042 4.625 1.563 3.438 7.000 5.625.625 1.042 4.625 1.438 3.125 6.625 5.500 1.563 3.438 7.375 1.438 3.125 6.125 1.688 3.750 7.500 5.250 1.813 4.063 8.375 1.438 3.125 6.000 21-1/4 1.813 4.063 8.375 1.688 3.750 7.375 20-3/4 10.125 0 inch ee 1.3 Definiions engh ap En hrea. olerance on ap en su lengh + 1/8-0 inch
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 3.2 A END UD ABE FOR 6BX UDDED FANGE CONNECION "BX" YE GAKE NO ANDOFF A END HREAD +1/16-0 (D+1.5 ICH) MINIMUM UNHREADED ORION HA BE EQUA O 1 HREAD ICH NU END HREAD (2-1/2 D) FU HREAD MIN. = + + + + + + RF oal flange hickness. lus olerance for flange hickness. Heavy hex nu hickness. Flange face sanoff. oin maximum (1.5 X ich) RF ap en hrea lengh maximum [(one iameer + 1.5 ich) + 1/16-0] A amoun of raise face presen on sue flanges if no omie o he lengh of sus in able. 1-13/16 1-13/16 1-13/16 2-/16 2-/16 2-/16 3-1/16 3-1/16 3-1/16 FANGE IZE + 1/16-1 1 1 1 1 1 1 UD DIA. 1.750 olerance on ap en su lengh + 1/8-0 inch A END NU END FANGE UD A END NU END IZE DIA. 0.00 1.042 0.00 1.042 1.042 1.438 1.563 1.563 1.38 4.375 3.125 3.438 3.438 4.375 1 1.688 3.750 1.688 1.688 1.688 2.688 olerance on ap en hrea lengh: 3.750 3.750 3.750 3.750 4.125 5.125 3.875 5.750 4.375 4.875 5.500 6.750 5.750 6.500 8.375 6.000 7.625 7.750 8.375 1 8.500 10.125 13.750 0 inch ee 1.3 Definiions engh ap En hrea. 18-3/4 18-3/4 18-3/4 21-1/4 21-1/4 26-3/4 26-3/4 30 30 1 1 1 1.750 2.750 2.250 3.000 2.250 3.000 1.750 1.38 2.38 1.813 2.438 3.188 2.438 3.188 2.688 1.38 1.813 4.375 6.875 4.063 5.625 7.500 5.625 7.500 4.375 4.063.750 1 1 8.375 1 13.250 18.125.500 1 1 14.000 16.750.750 15.125.125 1.250 1
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A 10 AENDIX A UD BO ABE FOR 6B FANGE CONNECION WIH "R" GAKE ACCOMMODAE "R" YE GAKE ONY DIA = 2( + + ) + + 2( ) oal flange hickness. lus olerence for flange hickness. Heavy hex nu hickness. Flange face sanoff. (wih "R" gaske) oin Max. (1.5 X ich) 2-/16 2-/16 2-/16 FANGE IZE BO DIA. 0.625 olerance on bol lengh: + 1/8 + 1/4 - - 0 0 FANGE BO IZE DIA. 4.750 5.250 6.750 6.750 5.500 7.500 7.250 8.250 7.000 8.000 10.250 inch for lenghs up o 12 inches. inch for lenghs over 12 inches. 21-1/4 20-3/4 7.250 8.250 1 8.250.250 12.250.000.750 14.000.250 10.500 10.500 1 750 14.500
AWHEM Recommenaion For u Bols an ap En us For AI pec 6A AENDIX B A END UD ABE FOR 6B UDDED FANGE CONNECION WIH "R" GAKE ACCOMMODAE "R" YE GAKE ONY A END HREAD +1/16-0 (D+1.5 ICH) MINIMUM UNHREADED ORION HA BE EQUA O 1 HREAD ICH NU END HREAD (2-1/2 D) FU HREAD MIN. RF + + + + + + RF oal flange hickness. lus olerance for flange hickness. Heavy hex nu hickness. Flange face sanoff. (wih "R" gaske) oin maximum (1.5 X ich) ap en hrea lengh maximum. [(one iameer + 1.5 ich ) + 1/16-0] A amoun of raise face presen on sue flanges if no omie o he lengh of sus in able. = FANGE UD A END NU END FANGE UD A END NU END IZE DIA. IZE DIA. 0.625 0.761 1.563 3.375 1.042 4.375 5.625 1.042 4.375 1.563 3.438 7.250 2-/16 0.00 3.750 5.625 2-/16 2-/16 4.750 4.750 1.563 1.813 3.438 4.063 6.375 8.125 0.00 3.875 1.438 3.125 6.125 1.042 4.375 1.563 3.438 6.625 1.042 5.250 4.375 5.125 1.438 1.563 3.125 3.438.250 7.000 1.438 3.125 5.750 1.688 3.750 7.125 1.438 3.125 4.875 5.625 21-1/4 1.813 1.813 4.063 4.063 8.000 8.000 1.688 3.750 7.000 20-3/4.625 olerance on ap en hrea lengh: + 1/16-0 inch ee 1.3 Definiions engh ap En hrea. olerance on ap en su lengh + 1/8-0 inch