Flanges

Class 150 Flange Dimensions

Size in InchSize in mmOuter Dia.Flange Thick.Hub ODFlange LengthRF Dia.RF HeightPCDSocket BoreNo of BoltsBolt Size UNCMachine Bolt LengthRF Stud LengthHole SizeISO Stud SizeWeight in kg
ABCDEFGH
1/215909.6301434.9260.322.241/250555/8M140.8
3/42010011.2381442.9269.927.741/250655/8M140.9
12511012.7491650.8279.434.541/255655/8M140.9
1 1/43211514.3591963.5288.943.241/255705/8M141.4
1 1/24012515.9652173298.449.541/265705/8M141.4
25015017.5782492.12120.761.945/870853/4M162.3
2 1/26518020.79027104.82139.774.645/875903/4M163.2
38019022.3108291272152.490.745/875903/4M163.7
3 1/29021522.312230139.72177.8103.485/875903/4M165
410023022.313532157.22190.5116.185/875903/4M165.9
512525522.316435185.72215.9143.883/485957/8M206.8
615028023.919238215.92241.3170.783/4851007/8M208.6
82003452724643269.92298.5221.583/4901107/8M2013.7
1025040528.630548323.82362276.2127/81001151M2419.5
1230048530.2365543812431.8327127/81001201M2429
1435053533.440056412.82476.3359.21211151351 1/8M2741
164005953545762469.92539.8410.51611151351 1/8M2754
1845063538.150567533.42577.9461.8161 1/81251451 1/4M3059
2050070041.355971584.22635513.1201 1/81401601 1/4M3075
2460081546.166381692.22749.3616201 1/41501701 3/8M33100

Class 300 Flange Dimensions

Size in InchSize in mmOuter Dia.Flange Thick.Hub ODFlange LengthRF Dia.RF HeightPCDSocket BoreNo of BoltsBolt Size UNCMachine Bolt LengthRF Stud LengthHole SizeISO Stud SizeWeight in kg
ABCDEFGH
1/2159512.7382134.9266.722.241/255655/8M141.2
3/42011514.3482442.9282.627.745/865753/4M161.4
12512515.9542550.8288.934.545/865753/4M161.4
1 1/43213517.5642563.5298.443.245/870853/4M161.8
1 1/24015519.17029732114.349.543/475907/8M202.7
25016520.7843292.1212761.985/875903/4M163.2
2 1/26519023.910037104.82149.274.683/4851007/8M204.6
38021027117411272168.390.783/4901107/8M205.9
3 1/29023028.613343139.72184.2103.483/4951107/8M207.7
410025530.214646157.22200116.883/4951157/8M2010
512528033.417849185.72235144.483/41101207/8M2012.7
61503203520651215.92269.9171.4123/41101207/8M2017.7
820038039.726060269.92330.2222.2127/81201401M2426
1025044546.132165323.82387.4277.41611401601 1/8M2736
1230052049.3375713812450.8328.2161 1/81451701 1/4M3052
1435058552.442575412.82514.4360.2201 1/81601801 1/4M3075
1640065055.648381469.92571.5411.2201 1/41651901 3/8M3386
1845071058.853387533.42628.6462.3241 1/41701951 3/8M33113
205007756258794584.22685.8514.4241 1/41852051 3/8M33143
2460091568.3702105692.22812.8616241 1/22052301 5/8M39216

Class Slip-on Flange Dimensions

Size in InchSize in mmOuter Dia.Flange ThicknessHub ODFlange LengthRF Dia.RF HeightPCDSocket BoreNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud SizeWeight in kg
ABCDEFGH
1/2159514.3382234.9766.722.241/2755/8M141.3
3/42011515.9482542.9782.627.745/8903/4M161.5
12512517.5542750.8788.934.545/8903/4M161.8
1 1/43213520.7642963.5798.443.245/8953/4M162.3
1 1/24015522.37032737114.349.543/41107/8M203.2
25016525.4843792.1712761.985/81103/4M164.1
2 1/26519028.610041104.87149.274.683/41207/8M205.9
38021031.8117461277168.390.783/41257/8M207.3
41002553514651157.27200116.187/81401M2411.8
512528038.117854185.77235143.887/81451M2414.1
615032041.320657215.97269.9170.7127/81501M2420
820038047.726068269.97330221.51211701 1/8M2731
102504455432173323.87387.4276.2161 1/81901 1/4M3042
1230052057.2375793817450.8327161 1/42051 3/8M3359
1435058560.442584412.87514.4359.2201 1/42101 3/8M3382
1640065063.548394469.97571.5410.5201 3/82201 1/2M36107
1845071066.753398533.47628.6461.8241 3/82301 1/2M36130
2050077569.9587102584.27685.8513.1241 1/22401 3/4M39157
2460091576.2702114692.27812.8616241 3/42651 7/8M45232

Class 600 Flange Dimensions

Size in InchSize in mmOuter Dia.Flange ThicknessHub ODFlange LengthRF Dia.RF HeightPCDSocket BoreNo of BoltsBolt Size UNCRF Stud LengthHole SizeISO Stud SizeWeight in kg
ABCDEFGH
1/2159514.3382234.9766.722.241/2755/8M141.3
3/42011515.9482542.9782.627.745/8903/4M161.4
12512517.5542750.8788.934.545/8903/4M161.8
1 1/43213520.7642963.5798.443.245/8953/4M162.3
1 1/24015522.37032737114.349.543/41107/8M203.2
25016525.4843792.1712761.985/81103/4M164.1
2 1/26519028.610041104.87149.274.683/41207/8M205.9
38021031.8117461277168.390.783/41257/8M207.3
410027538.115254157.27215.9116.187/81451M2416.8
512533044.518960185.77266.7143.8811651 1/8M2729
615035547.722267215.97292.1170.71211701 1/8M2736
820042055.627376269.97349.2221.5121 1/81901 1/4M3052
1025051063.534386323.87431.8276.2161 1/42151 3/8M3377
1230056066.7400923817489327201 1/42201 3/8M3391
1435060569.943294412.87527359.2201 3/82351 1/2M36105
1640068576.2495106469.97603.2410.5201 1/22551 5/8M39150
1845074582.6546117533.47654461.8201 5/82751 3/4M42182
2050081588.9610127584.27723.9513.1241 5/82851 3/4M42232
24600940101.6718140692.27838.2616241 7/83302M48332

Flange Weights by Pressure Class and Size in mm kg

Pipe Size (inch)150 #300 #600 #900 #1500 #2500 #
WNSOBLDWNSOBLDWNSOBLDWNSOBLDWNSOBLDWNSOBLD
1/2″211211222SEE 1500 # WEIGHTS544777
3/4″222333433SEE 1500 # WEIGHTS656888
1″322433444SEE 1500 # WEIGHTS988121111
1 1/2″433766878SEE 1500 # WEIGHTS131213252223
2″65597812910SEE 1500 # WEIGHTS252525423739
2 1/2″877121012181315SEE 1500 # WEIGHTS363635525556
3″1089151316231620312629484848948386
4″151317252227423741535354737373145125130
5″191520322835686368868387130130140245210225
6″241926423950818086110110115165165160380325345
8″393045675881120115140175170200275260300580485530
10″524370918112419017023026024529045543551010759301025
12″8064110140115185225200295325325415690580690152511001300
14″11090140180165250280230355400400520940NA975NANANA
16″140981802501902953903304954954256001250NA1300NANANA
18″1501302203202503954754006306806008501625NA1750NANANA
20″18016528540031550559051081083073010752050NA2225NANANA
22″2251853554653706407205901000NANANANANANANANANA
24″26022043058047579083073012501500140020253325NA3625NANANA