BOLT & STUD DIMENSIONS FOR ANSI FLANGES

1 STUD BOLTS WITH NUTS MACHINE bolt WITH NUTSLLLLStud Bolts Mach. BoltsStud Bolts Mach. BoltsStud Bolts Stud Bolts Stud Bolts Stud Bolts DNNPS inchmmmminchmmmminchmminchmminchmminchmm 15 41/2604541/2655541/28043/410543/410543/4 12520 41/2655045/8756045/89043/411543/411543/4 12525141/2655545/8806545/89047/812547/81 2547/8140321 41/2705545/8806545/810047/812547/8125411 50401 41/2706043/4907543/4105411404114041-1/81 7050245/8806585/8907585/810587/814587/81 4581175652 45/8907583/41008583/4120811608116081-1/8 19580345/8907583/41109083/412587/814581- 1/818081-1/4220903 85/8907583/41109587/8140---------100485/ 8907583/41109587/814581-1/817081-1/41958 1-1/2255125583/4908083/41201008116581-1/ 419081-1/225081-3/4300150683/410085123/4 125105121170121-1/8195121-3/826082345200 883/411090127/8140110121-1/8195121-3/822 0121-5/829012238025010127/81159516115513 0161-1/4215161-3/8235121-7/8335122-1/248 530012127/8120100161-1/8170145201-1/4220 201-3/8255162375122-3/454035014121130110 201-1/8175150201-3/8235201-1/2275162-1/4 40540016161135115201-1/4190160201-1/2255 201-5/8285162-1/244545018161-1/815012524 1-1/4195170201-5/8275201-7/8325162-3/449 550020201-1/8160135241-1/4205180241-5/82 9020234516354060024201-1/4175145241-1/22 30195241-7/8330202-1/2435163-1/261575030 281-1/4190160281-/3429025028235590036321 -1/2215180322325280282-1/2400 Raised Face height of 2mm for Class 150 & 300 and 7mm for Class 600, 900, 1500 & 2500 are included in dimension L ( bolt Length).

2 CARBON STEEL PIPE FLANGES TO ansi (BS 1560)FORGINGS TO ASTM A105 - Not recommended for prolonged use above 427qCFORGINGS TO ASTM A350 - LF2 - Not to be used above 343qC-29to385010015020025030035037540042 5450475500525540 flange ABOVE DN 600 ARE NOT INCLUDED IN ansi AND THE CLASS DESIGNATIONS IN THESE LARGE DIAMETERS DO NOT IMPLY SPECIFIC TEMPERATURE/PRESSURE RATINGS Inch/Metric Bolting interchangeable for ansi FLANGES as belowFORUSE2- "M56M641-5/8"M421-3/4"M452- "M721-7/8"2"2- "M48M521-3/8"M361- "M391-1/8"M301-1/4"M337/8"M241"M275/8"M1 8 "M20 "M14 bolt & STUD DIMENSIONS FOR ansi FLANGESC lass 900, 1500 & 2500 - Not listed in BS 3293 CLASS 2500No. BoltsDia.

3 Bolts No. BoltsDia. Bolts CLASS 900No. BoltsDia. Bolts NOMINAL SIZECLASS 150 CLASS 1500No. BoltsDia. Bolts No. BoltsDia. Bolts CLASS 300No. BoltsCLASS 600 Dia. Bolts LTEMPERATURE IN qCPN20PN50PN100PN150 MAXIMUM WORKING PRESSURE IN kPa BY PN (Pressure Numbers)(FOR APPROXIMATE PSI DIVIDE BY 7)LPN250PN420255304255019205010100201502 0196051101021015320226103769017704640928 0139102504041730231903865021910365201580 4520140043808760131509050135701937032280 1210417083401252010203870775011620740365 0729010940239606503450690010350182303039 0172502875016690560288047020004010601057 5086301438037013502710406017602640190520 1303301109020860650980104015502808803477 016302720677011290440073302590432010020 Diameter of Bolts is shown in inches.

4 For nominal diameters 1" and smaller, threads are ; nominal diameters 1-1/8" and larger threads are 8 (8 ).Length of Bolts (L) is shown in millimetres rounded to the nearest 5mm. Sud bolt lengths (L*) do not include the height of points. Machine bolt lengths (L) include the height of point. The length shown includes the height of the Raised Face in all suit flange sizes DN15 to 600 to ansi (BS 1560) and DN 750 & 900 to BS 32931848030800 TABLE GTEMPERATURE / PRESSURE RATINGS84037007390 * Point HeightLL* 44