Bolt_Stud_Dimensions
L L L L Stud Bolts Mach. Bolts Stud Bolts Mach. Bolts Stud Bolts Stud Bolts Stud Bolts Stud Bolts DN NPS inch mm mm inch
mm mm inch
mm inch mm inch mm inch mm 15?41/2604541/2
655541/28043/410543/410543/412520?41/2655045/8756045/89043/411543/411543/412525141/2655545/8806545/89047/812547/812547/8140321?41/2705545/8806545/810047/812547/812541150401?41/2706043/4907543/4105411404114041-1/817050245/8806585/8907585/810587/814587/814581175652?45/8907583/41008583/4120811608116081-1/819580345/8907583/41109083/412587/814581-1/818081-1/4220903?85/8907583/41109587/8140---------100485/8907583/41109587/814581-1/817081-1/419581-1/2255125583/4908083/41201008116581-1/419081-1/225081-3/4300150683/410085123/4125105121170121-1/8195121-3/826082345200883/411090127/8140110121-1/8195121-3/8220121-5/829012238025010127/811595161155130161-1/4215161-3/8235121-7/8335122-1/248530012127/8120100161-1/8170145201-1/4220201-3/825516237512
2-3/4
540
35014121130110201-1/8175150201-3/8235201-1/2275162-1/440540016161135115201-1/4190160201-1/2255201-5/8285162-1/244545018161-1/8150125241-1/4195170201-5/8275201-7/8325162-3/449550020201-1/8160135241-1/4205180241-5/829020234516354060024201-1/4175145241-1/2230195241-7/8330202-1/2
435
16
3-1/2
615
75030281-1/4190160281-/34290250282355900
36
32
1-1/2
215
180
322
325
280
28
2-1/2
400
Raised Face height of 2mm for Class 150 & 300 and 7mm for Class 600, 900, 1500 & 2500 are included in dimension L (Bolt Length).
CARBON STEEL PIPE FLANGES TO ANSI B16.5 (BS 1560)
FORGINGS TO ASTM A105 - Not recommended for prolonged use above 427q C FORGINGS TO ASTM A350 - LF2 - Not to be used above 343q C
-29to 3850100150200250300350375400425450475500525540
FLANGE ABOVE DN 600 ARE NOT INCLUDED IN ANSI B16.5 AND THE CLASS DESIGNATIONS IN THESE LARGE DIAMETERS DO NOT IMPLY SPECIFIC TEMPERATURE/PRESSURE RATINGS
Inch/Metric Bolting interchangeable for ANSI B16.5 flanges
as below FOR
USE
2-?"M56M641-5/8"M421-3/4"M452-?"
M72
1-7/8"2"2-?"M48M521-3/8"M361-?"M391-1/8"M301-1/4"M337/8"M241"M275/8"M18?"M20?"M14B OLT & S TUD D IMENSIONS FOR A NS I F LANGES
Class 900, 1500 & 2500 - Not listed in BS 3293
CLASS 2500
No. Bolts
Dia. Bolts No. Bolts
Dia. Bolts CLASS 900
No. Bolts
Dia. Bolts NOMINAL SIZE
CLASS 150
CLASS 1500
No. Bolts
Dia. Bolts No. Bolts
Dia. Bolts CLASS 300
No. Bolts
CLASS 600
Dia. Bolts L
TEMPERATURE
IN q C
PN20PN50PN100PN150MAXIMUM WORKING PRESSURE IN kPa BY PN (Pressure Numbers)
(FOR APPROXIMATE PSI DIVIDE BY 7)
L
PN250PN4202553042550192050101002015020196051101021015320226103769017704640928013910250404173023190386502191036520158045201400438087601315090501357019370322801210417083401252010203870775011620740365072901094023960650345069001035018230303901725028750166905602880470200040106010575086301438037013502710406017602640190520130
330
1109020860650
980
10401550280880347701630
2720
677011290440073302590432010020Diameter of Bolts nominal diameters 1-1/8" and larger threads are 8 U.N. (8 T.P.I.).
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 cases.
To suit R.F. Flange sizes DN15 to 600 to ANSI B16.5 (BS 1560) and DN 750 & 900 to BS 3293
1848030800TABLE G
TEMPERATURE / PRESSURE RATINGS
84037007390
* Point Height
L
L*
44