Brides à recouvrement
Lap joint flanges feature a flat face and are always used in conjunction with a stub end.A lap joint flange slips over the pipe and seats on the back of the stub end and the two are kept together by the pressure of the bolts.
///CLASSE 150///
Nominal sizeSteel Pipe outer diameterFlange outer diameterConnection sizeflange thicknessFlange inner diameterFlange neck big endFlange heightRounded comersButt welding ringTheotical weight
DNNPSADBolt hole center circle diameter KBolt hole diameter LBolt hole quantity n(pieces)CBNHR1high Houter diameter dKg
151/221.39088.960.31615.7411.222.9301635134.90.38
203/426.910098.669.91615.7412.728.2381635142.90.55
25133.711010879.41615.7414.334.9491735150.80.76
321 1/442.4115117.388.91615.7415.943.7592155163.51.01
401 1/248.312512798.41615.7417.550.0652265173.01.3
50260.3150152.4120.71819.1419.162.5782586492.12.03
652 1/276.1180177.8139.71819.1422.378.5/75.49029864104.83.25
80388.9190190.5152.41819.1423.991.4108301064127.03.81
1004114.3230228.6190.51819.1823.9116.8135331176157.25.25
1255139.7255254215.92222.4823.9144.4164361176185.76.02
1506168.3280278.4241.32222.4825.4171.4192401389215.97.4
2008219.1345342.9298.582222.4828.6222.22464413102269.912.1
25010273405406.4362.02625.41230.2277.43054913127323.816.4
30012323.9485482.6431.82625.41231.8328.23655613152381.026.1
35014355.6535533.4476.23028.41235.0360.24007913152412.834.5
40016406.4595596.9539.83028.41636.6411.24578713152469.944.6
45018457635635577.93331.751639.7462.35059713152533.448.7
50020508700698.5635.03331.752042.9514.455910313152584.261.6
60024610815812.8749.33635.12047.7616.066311113152692.286.6
///CLASSE 300///
Nominal sizeSteel Pipe outer diameterFlange outer diameterConnection sizeflange thicknessFlange inner diameterFlange neck big endFlange heightRounded cornersButt welding ringTheotical weight
DNNPSADBolt hole center circle diameter KBolt hole diameter LBolt hole quantity n(pieces)CBNHR1high Houter diameter dKg
151/221.39588.966.71615.7414.322.9382235134.90.62
203/426.911598.682.61815.7415.928.2482535142.91.1
25133.712510888.91815.7417.534.9542735150.81.33
321 1/442.4135117.398.41815.7419.143.7642755163.51.65
401 1/248.3155127114.32215.7420.750.0703065173.02.44
50260.3165152.4127.01819.1822.362.5843386492.12.83
652 1/276.1190177.8149.22219.1825.478.5/75.410038864104.84.25
80388.9210190.5168.32219.1828.691.4117431064127.05.78
1004114.3255228.6200.02219.1831.8116.8146481176157.29.55
1255139.7280254235.02222.4835.0144.4178511176185.712.2
1506168.3320279.4269.92222.41236.6171.4206521389215.915.5
2008219.1380342.9330.22622.41241.3222.22606213102269.924.1
25010273445406.4387.43025.41647.7277.13219513254323.834.4
30012323.9520482.6450.83325.41650.8328.237510213254381.050.4
35014355.6585533.4514.43328.42054.0360.242511113305412.870.9
40016406.4650596.9571.53628.42057.2411.248312113305469.989.5
45018457710635628.63631.752460.4462.353313013305533.4111
50020508775698.5685.83631.752463.5514.458714013305584.2137
60024610915812.8812.84235.12469.9616.070215213305692.2204
///CLASSE 600///
Nominal sizeSteel Pipe outer diameterFlange outer diameterConnection sizeflange thicknessFlange inner diameterFlange neck big endFlange heightRounded cornersButt welding ringTheotical weight
DNNPSADBolt hole center circle diameter KBolt hole diameter LBolt hole quantity n(pieces)CBNHR1high Houter diameter dKg
151/221.39588.966.71615.7414.322.9382237634.90.72
203/426.911598.682.61815.7415.928.2482537642.91.25
25133.712510888.91815.7417.534.95427310250.81.5
3211/442.4135117.398.41815.7420.743.76429510263.52
4011/248.3155127114.32215.7422.350.07032610273.02.92
50260.3165152.4127.01819.1825.462.58437815292.13.55
6521/276.1190177.8149.22219.1828.678.5/75.4100418152104.85.23
80388.9210190.5168.32219.1831.891.41174610152127.06.95
1004114.3275228.6215.92619.1838.1116.81525411152157.214.4
1255139.7330254266.73022.4844.5144.41896011203185.724.3
1506168.3355279.4292.13022.41247.7171.42226713203215.928.5
2008219.1420342.9349.23322.41255.6222.22737613203269.943.1
25010273510406.4431.83625.41663.5277.434311113254323.870.5
30012323.9560482.6489.03625.42066.7328.240011713254381.086.1
35014355.6605533.4527.03928.42069.9360.243212713305412.8100
40016406.4685596.9603.24228.42076.2411.249514013305469.9145
45018457745635654.04531.752082.6462.354615213305533.4177
50020508815698.5723.94531.752488.9514.461016513305584.2225
60024610940812.8838.25135.124101.6616.071818413305692.2318
Foire aux questions (FAQ)
What are lap joint flanges used for?
Applications where ease of alignment and assembly is crucial, such as in piping systems with frequent disassembly or inspection.
What are the benefits of using lap joint flanges?
Ease of installation and alignment, ability to accommodate pipe misalignment, and the flexibility of using a backing flange to match different pipe sizes or configurations.
How do lap joint flanges differ from other flange types?
Consist of two parts: a loose backing flange and a lap joint flange, allowing for easier alignment and adjustments without welding.