fbpx

Home  ·  Shop Online  ·  Post RFQ

Lap Joint Flange Dimensions (Cl. 150/300/900/1500/2500)

Share on whatsapp
Share on telegram
Share on linkedin
Share on facebook
Share on twitter
Share on print
Share on email

Table of Contents

The charts show the dimensions of lap joint flange class 150, 300, 400, 900, 1500, 2500 in inches and in millimeters.

LAP JOINT FLANGE DIMENSIONS IN INCHES

LAP JOINT CLASS 150 (IN INCH)

Lap joint flange dimensions class 150 in inches (ASME B16.5)

Lap Joint Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)HT1T2RABolt Hole (B)No. of Bolt Holes
1/2″0.88″3.50″2.38″1.19″.44″.62″.12″.62″4
3/4″1.09″3.88″2.75″1.50″.50″.62″.12″.62″4
1″1.36″4.25″3.12″1.94″.56″.69″.12″.62″4
1-1/4″1.70″4.62″3.50″2.31″.62″.81″.19″.62″4
1-1/2″1.97″5.00″3.88″2.56″.69″.88″.25″.62″4
2″2.44″6.00″4.75″3.06″.75″1.00″.31″.75″4
2-1/2″2.94″7.00″5.50″3.56″.88″1.12″.31″.75″4
3″3.57″7.50″6.00″4.25″.94″1.19″.38″.75″4
3-1/2″4.07″8.50″7.00″4.81″.94″1.25″.38″.75″8
4″4.57″9.00″7.50″5.31″.94″1.31″.44″.75″8
5″5.66″10.00″8.50″6.44″.94″1.44″.44″.88″8
6″6.72″11.00″9.50″7.56″1.00″1.56″.50″.88″8
8″8.72″13.50″11.75″9.69″1.12″1.75″.50″.88″8
10″10.88″16.00″14.25″12.00″1.19″1.94″.50″1.00″12
12″12.88″19.00″17.00″14.38″1.25″2.19″.50″1.00″12
14″14.14″21.00″18.75″15.75″1.38″3.12″.50″1.12″12
16″16.16″23.50″21.25″18.00″1.44″3.44″.50″1.12″16
18″18.18″25.00″22.75″19.88″1.56″3.81″.50″1.25″16
20″20.20″27.50″25.00″22.00″1.69″4.06″.50″1.25″20
22″22.22″29.50″27.25″24.25″1.81″4.25″.50″1.38″20
24″24.25″32.00″29.50″26.12″1.88″4.38″.50″1.38″20

LAP JOINT CLASS 300 (IN INCH)

Lap joint flange dimensions class 300 in inches (ASME B16.5)

Lap Joint Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)HT1T2RABolt Hole (B)No. of Bolt Holes
1/2″0.90″3.75″2.62″1.50″0.56″0.88″.12″0.62″4
3/4″1.11″4.62″3.25″1.88″0.62″1.00″.12″0.75″4
1″1.38″4.88″3.50″2.12″0.69″1.06″.12″0.75″4
1-1/4″1.72″5.25″3.88″2.50″0.75″1.06″.19″0.75″4
1-1/2″1.97″6.12″4.50″2.75″0.81″1.19″.25″0.88″4
2″2.46″6.50″5.00″3.31″0.88″1.31″.31″0.75″8
2-1/2″2.97″7.50″5.88″3.94″1.00″1.50″.31″0.88″8
3″3.60″8.25″6.62″4.62″1.12″1.69″.38″0.88″8
3-1/2″4.10″9.00″7.25″5.25″1.19″1.75″.38″0.88″8
4″4.60″10.00″7.88″5.75″1.25″1.88″.44″0.88″8
5″5.69″11.00″9.25″7.00″1.38″2.00″.44″0.88″8
6″6.75″12.50″10.62″8.12″1.44″2.06″.50″0.88″12
8″8.75″15.00″13.00″10.25″1.62″2.44″.50″1.00″12
10″10.92″17.50″15.25″12.62″1.88″3.75″.50″1.12″16
12″12.92″20.50″17.75″14.75″2.00″4.00″.50″1.25″16
14″14.18″23.00″20.25″16.75″2.12″4.38″.50″1.25″20
16″16.19″25.50″22.50″19.00″2.25″4.75″.50″1.38″20
18″18.20″28.00″24.75″21.00″2.38″5.12″.50″1.38″24
20″20.25″30.50″27.00″23.12″2.50″5.50″.50″1.38″24
22″22.25″33.00″29.25″25.25″2.63″5.75″.50″1.63″24
24″24.25″36.00″32.00″27.62″2.75″6.00″.50″1.62″24

LAP JOINT CLASS 400 (IN INCH)

Lap joint flange dimensions class 400 in inches (ASME B16.5)

Lap Joint Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)HT1T2RABolt Hole (B)No. of Bolt Holes
1/2″0.90″3.75″2.62″1.50″0.56″0.88″.12″0.62″4
3/4″1.11″4.62″3.25″1.88″0.62″1.00″.12″0.75″4
1″1.38″4.88″3.50″2.12″0.69″1.06″.12″0.75″4
1-1/4″1.72″5.25″3.88″2.50″0.81″1.12″.19″0.75″4
1-1/2″1.97″6.12″4.50″2.75″0.88″1.25″.25″0.88″4
2″2.46″6.50″5.00″3.31″1.00″1.44″.31″0.75″8
2-1/2″2.97″7.50″5.88″3.94″1.12″1.62″.31″0.88″8
3″3.60″8.25″6.62″4.62″1.25″1.81″.38″0.88″8
3-1/2″4.10″9.00″7.25″5.25″1.38″1.94″.38″1.00″8
4″4.60″10.00″7.88″5.75″1.38″2.00″.44″1.00″8
5″5.69″11.00″9.25″7.00″1.50″2.12″.44″1.00″8
6″6.75″12.50″10.62″8.12″1.62″2.25″.50″1.00″12
8″8.75″15.00″13.00″10.25″1.88″2.69″.50″1.12″12
10″10.92″17.50″15.25″12.62″2.12″4.00″.50″1.25″16
12″12.92″20.50″17.75″14.75″2.25″4.25″.50″1.38″16
14″14.18″23.00″20.25″16.75″2.38″4.62″.50″1.38″20
16″16.19″25.50″22.50″19.00″2.50″5.00″.50″1.50″20
18″18.20″28.00″24.75″21.00″2.62″5.38″.50″1.50″24
20″20.25″30.50″27.00″23.12″2.75″5.75″.50″1.62″24
22″22.25″33.00″29.25″25.25″2.88″6.00″.50″1.75″24
24″24.25″36.00″32.00″27.62″3.00″6.25″.50″1.88″24

LAP JOINT CLASS 600 (IN INCH)

Lap joint flange dimensions class 600 in inches (ASME B16.5)

Lap Joint Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)HT1T2RABolt Hole (B)No. of Bolt Holes
1/2″0.90″3.75″2.62″1.50″0.56″0.88″.12″0.62″4
3/4″1.11″4.62″3.25″1.88″0.62″1.00″.12″0.75″4
1″1.38″4.88″3.50″2.12″0.69″1.06″.12″0.75″4
1-1/4″1.72″5.25″3.88″2.50″0.81″1.12″.19″0.75″4
1-1/2″1.97″6.12″4.50″2.75″0.88″1.25″.25″0.88″4
2″2.46″6.50″5.00″3.31″1.00″1.44″.31″0.75″8
2-1/2″2.97″7.50″5.88″3.94″1.12″1.62″.31″0.88″8
3″3.60″8.25″6.62″4.62″1.25″1.81″.38″0.88″8
3-1/2″4.10″9.00″7.25″5.25″1.38″1.94″.38″1.00″8
4″4.60″10.75″8.50″6.00″1.5″2.12″.44″1.00″8
5″5.69″13.00″10.50″7.44″1.75″2.38″.44″1.12″8
6″6.75″14.00″11.50″8.75″1.88″2.62″.50″1.12″12
8″8.75″16.50″13.75″10.75″2.19″3.00″.50″1.25″12
10″10.92″20.00″17.00″13.5″2.50″4.38″.50″1.38″16
12″12.92″22.00″19.25″15.75″2.62″4.62″.50″1.38″20
14″14.18″23.75″20.75″17.00″2.75″5.00″.50″1.50″20
16″16.19″27.00″23.75″19.50″3.00″5.50″.50″1.62″20
18″18.20″29.25″25.75″21.50″3.25″6.00″.50″1.75″20
20″20.25″32.00″28.50″24.00″3.50″6.50″.50″1.75″24
22″22.25″34.25″30.63″26.25″3.75″6.88″.50″1.75″24
24″24.25″37.00″33.00″28.25″4.00″7.25″.50″2.00″24

LAP JOINT CLASS 900 (IN INCH)

Lap joint flange dimensions class 900 in inches (ASME B16.5)

Lap Joint Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)HT1T2RABolt Hole (B)No. of Bolt Holes
3″3.60″9.50″7.50″5.00″1.50″2.13″.38″1.00″8
4″4.60″11.50″9.25″6.25″1.75″2.75″.44″1.25″8
5″5.69″13.75″11.00″7.50″3.00″3.13″.44″1.38″8
6″6.75″15.00″12.50″9.25″2.19″3.38″.50″1.25″12
8″8.75″18.50″15.50″11.75″2.50″4.50″.50″1.50″12
10″10.92″21.50″18.50″14.50″2.75″5.00″.50″1.50″16
12″12.92″24.00″21.00″16.50″3.13″5.63″.50″1.50″20
14″14.18″25.25″22.00″17.75″3.38″6.13″.50″1.63″20
16″16.19″27.75″24.25″20.00″3.50″6.50″.50″1.75″20
18″18.20″31.00″27.00″22.25″4.00″7.50″.50″2.00″20
20″20.25″33.75″29.50″24.50″4.25″8.25″.50″2.13″20
24″24.25″41.00″35.50″29.50″5.50″10.50″.50″2.63″20

LAP JOINT CLASS 1500 (IN INCH)

Lap joint flange dimensions class 1500 in inches (ASME B16.5)

Lap Joint Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)Raised Face (R)Raised Face (RF)HRaised Face Thickness (T)T1Flat Face Thickness (T2)Bolt Hole (B)No. of Bolt Holes
1/2″0.88″4.75″3.25″1.38″.250″1.50″1.50″0.88″1.25″0.88″4
3/4″1.09″5.13″3.50″1.69″.250″1.75″1.63″1.00″1.38″0.88″4
1″1.36″5.88″4.00″2.00″.250″2.06″1.88″1.13″1.63″1.00″4
1-1/4″1.70″6.25″4.38″2.50″.250″2.50″1.88″1.13″1.63″1.00″4
1-1/2″1.95″7.00″4.88″2.88″.250″2.75″2.00″1.25″1.75″1.13″4
2″2.44″8.50″6.50″3.63″.250″4.13″2.50″1.50″2.25″1.00″8
2-1/2″2.94″9.63″7.50″4.13″.250″4.88″2.75″1.63″2.50″1.13″8
3″ **3.57″10.50″8.00″5.00″.250″5.25″3.13″1.88″2.88″1.25″8
4″ **4.57″12.25″9.50″6.19″.250″6.38″3.81″2.13″3.56″1.38″8
5″ **5.66″14.75″11.50″7.31″.250″7.75″4.38″2.88″4.13″1.63″8
6″ **6.72″15.50″12.50″8.50″.250″9.00″4.94″3.25″4.69″1.50″12
8″ **8.72″19.00″15.50″10.63″.250″11.50″5.88″3.63″5.63″1.75″12
10″ **10.88″23.00″19.00″12.75″.250″14.50″6.50″4.25″6.25″2.00″12
12″ **12.88″26.50″22.50″15.00″.250″17.75″7.38″4.88″7.13″2.13″16

LAP JOINT CLASS 2500 (IN INCH)

Lap joint flange dimensions class 2500 in inches (ASME B16.5)

Lap Joint Flange Dimensions ASME B16.5

FLANGE
NPS
Inside
Diameter
Outside
Diameter
Bolt Circle (BC)HT1T2RABolt Hole (B)No. of Bolt Holes
1/2″0.90″5.25″3.50″1.69″1.19″1.56″.12″0.88″4
3/4″1.11″5.50″3.75″2.00″1.25″1.69″.12″0.88″4
1″1.38″6.25″4.25″2.25″1.38″1.88″.12″1.00″4
1-1/4″1.72″7.25″5.13″2.88″1.50″2.06″.19″1.13″4
1-1/2″1.97″8.00″5.75″3.13″1.75″2.38″.25″1.25″4
2″2.46″9.25″6.75″3.75″2.00″2.75″.31″1.13″8
2-1/2″2.97″10.50″7.75″4.50″2.25″3.13″.31″1.25″8
3″3.60″12.00″9.00″5.25″2.63″3.63″.38″1.38″8
4″4.60″14.00″10.75″6.50″3.00″4.25″.44″1.63″8
5″5.69″16.50″12.75″8.00″3.63″5.13″.44″1.88″8
6″6.75″19.00″14.50″9.25″4.25″6.00″.50″2.13″8
8″8.75″21.75″17.25″12.00″5.00″7.00″.50″2.13″12
10″10.92″26.50″21.25″14.75″6.50″9.00″.50″2.63″12
12″12.92″30.00″24.38″17.38″7.25″10.00″.50″2.88″12

LAP JOINT FLANGE DIMENSIONS IN MILLIMETERS

LAP JOINT CLASS 150 (IN MM)

Lap joint flange dimensions class 150 in millimeters (ASME B16.5)

Lap joint flange dimensions ASME B16.5

Size
inch
D
mm
X
mm
t
mm
B3
mm
T3
mm
1/28930.211.222.915.73.0
3/49938.112.728.215.73.0
110849.314.235.117.53.0
11758.715.743.720.64.8
12765.017.550.022.46.4
215277.719.162.525.47.9
17890.422.475.428.47.9
3191108.023.991.430.29.7
216122.223.9104.131.89.7
4229134.923.9116.833.311.2
5254163.623.9144.536.611.2
6279192.025.4171.539.612.7
8343246.128.4223.344.512.7
10406304.830.2277.449.312.7
12483365.331.8328.255.612.7
14533400.135.1360.279.212.7
16597457.236.6411.287.412.7
18635505.039.6462.396.812.7
20699558.842.9514.4103.112.7
24813663.447.8616.0111.312.7

 

SizeDrillingBolting
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/260.5415.71/250.857.2
3/469.9415.71/250.863.5
179.2415.71/257.263.576.2
88.9415.71/257.269.982.6
98.6415.71/263.569.982.6
2120.7419.15/869.982.695.3
139.7419.15/876.288.9101.6
3152.4419.15/876.288.9101.6
177.8819.15/876.288.9101.6
4190.5819.15/876.288.9101.6
5215.9822.43/482.695.3108.0
6241.3822.43/482.6101.6114.3
8298.5822.43/488.9108.0120.7
10362.01225.47/8101.6114.3127.0
12431.81225.47/8101.6120.7133.4
14476.31228.41114.3133.4146.1
16539.81628.41114.3133.4146.1
18577.91631.811/8127.0146.1158.8
20635.02031.811/8139.7158.8171.5
24749.32035.1152.4171.5184.2

LAP JOINT CLASS 300 (IN MM)

Lap joint flange dimensions class 300 in millimeters (ASME B16.5)

Lap joint flange dimensions ASME B16.5

Size
inch
D
mm
X
mm
t
mm
B3
mm
T3
mm
1/29538.114.222.922.43.0
3/411747.815.728.225.43.0
112453.817.535.126.93.0
13363.519.143.726.94.8
15569.920.650.030.26.4
216584.122.462.533.37.9
191100.125.475.438.17.9
3210117.328.491.442.99.7
229133.430.2104.144.59.7
4254146.131.8116.847.811.2
5279177.835.1144.550.811.2
6318206.236.6171.552.312.7
8381260.441.1222.362.012.7
10445320.547.8277.466.512.7
12521374.750.8328.2101.612.7
14584425.563.8360.2111.312.7
16648482.657.2411.2120.712.7
18711533.460.5462.3130.012.7
20775587.263.5514.4139.712.7
24914701.569.9616.0152.412.7

 

SizeDrillingBolting
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/266.5415.71/257.263.576.2
3/482.6419.15/863.576.288.9
188.9419.15/863.576.288.9
98.6419.15/869.982.695.3
114.3422.43/476.288.9101.6
2127.0819.15/876.288.9101.6
149.4822.43/482.6101.6114.3
3168.1822.43/488.9108.0120.7
184.2822.43/495.3108.0127.0
4200.2822.43/495.3114.3127.0
5235.0822.43/4108.0120.7133.4
6269.71222.43/4108.0120.7139.7
8330.21225.47/8120.7139.7152.4
10387.41628.41139.7158.8171.5
12450.91631.811/8146.1171.5184.2
14514.42031.811/8158.8177.8190.5
16571.52035.1165.1190.5203.2
18628.72435.1171.5196.9209.6
20685.82435.1184.2203.2222.3
24812.82441.1203.2228.6254.0

LAP JOINT CLASS 600 (IN MM)

Lap joint flange dimensions class 600 in millimeters (ASME B16.5)

Lap joint flange dimensions ASME B16.5

Size
inch
D
mm
X
mm
t
mm
B3
mm
T3
mm
1/29538.114.222.922.43.0
3/411747.815.728.225.43.0
112453.817.535.126.93.0
13363.520.643.728.44.8
15569.922.450.031.86.4
216584.125.462.536.67.9
191100.128.475.441.17.9
3210117.331.891.446.09.7
229133.435.1104.149.39.7
4273152.438.1116.853.811.2
5330189.044.5144.560.511.2
6356222.347.8171.566.512.7
8419273.155.6222.376.212.7
10508342.963.5277.4111.312.7
12559400.166.5328.2117.312.7
14603431.869.9360.2127.012.7
16686495.376.2411.2139.712.7
18743546.182.6462.3152.412.7
20813609.688.9514.4165.112.7
24940717.6101.6616.0184.212.7

 

SizeDrillingBolting
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/266.5415.71/276.269.976.2
3/482.6419.15/888.982.688.9
188.9419.15/888.982.688.9
98.6419.15/895.388.995.3
114.3422.43/4108.0101.6108.0
2127.0819.15/8108.0101.6108.0
149.4822.43/4120.7114.3120.7
3168.1822.43/4127.0120.7127.0
184.2825.47/8139.7133.4139.7
4215.9825.47/8146.1139.7146.1
5266.7828.41165.1158.8165.1
6292.11228.41171.5165.1171.5
8349.31231.811/8190.5184.2196.9
10431.81635.1215.9209.6215.9
12489.02035.1222.3215.9222.3
14527.12038.113/8235.0228.6235.0
16603.32041.1254.0247.7254.0
18654.12044.515/8273.1266.7273.1
20723.92444.515/8285.8279.4292.1
24838.22450.817/8330.2323.9336.6

LAP JOINT CLASS 900 (IN MM)

Lap joint flange dimensions class 900 in millimeters (ASME B16.5)

Lap joint flange dimensions ASME B16.5

Size
inch
D
mm
X
mm
t
mm
B3
mm
T3
mm
1/212138.122.422.931.83.0
3/413044.525.428.235.13.0
114952.328.435.141.13.0
15963.528.443.741.14.8
17869.931.850.044.56.4
2216104.638.162.557.27.9
244124.041.175.463.57.9
3241127.038.191.453.89.7
4292158.844.5116.869.911.2
5349190.550.8144.579.211.2
6381235.055.6171.585.912.7
8470298.563.5222.3114.312.7
10546368.369.9277.4127.012.7
12610419.179.2328.2142.712.7
14641450.985.9360.2155.412.7
16705508.088.9411.2165.112.7
18787565.2101.642.3190.512.7
20857622.3108.0514.4209.612.7
241041749.3139.7616.0266.712.7

 

SizeDrillingBolting
inchBolt circle
Diameter mm
Holes #Holes Dia. mmBolt Dia. inch.Length
FF Flange
Length
RF Flange
Length
RTJ Flange
1/282.6422.43/4108.0101.6108.0
3/488.9422.43/4114.3108.0114.3
1101.6425.47/8127.0120.7127.0
111.3425.47/8127.0120.7127.0
124.0428.41139.7133.4139.7
2165.1825.47/8146.1139.7146.1
190.5828.41158.8152.4158.8
3190.5825.47/8146.1139.7146.1
4235.0831.811/8171.5165.1171.5
5279.4835.1190.5184.2190.5
6317.51231.811/8190.5184.2196.9
8393.71238.113/8222.3215.9222.3
10469.91638.113/8235.0228.6235.0
12533.42038.113/8254.0247.7254.0
14558.82041.1273.1266.7292.1
16616.02044.515/8285.8279.4298.5
18685.82050.817/8323.9317.5333.6
20749.32053.82349.3342.9362.0
24901.72066.5438.2431.8457.2

Need an Offer?

Post your RFQ · Get Offers · Close Deals
GET OFFER

One Response

  1. Hello,
    what about over 4 inches LJ flanges?
    Need information about 24in LJ flange class 300 FF ASME 16.47 Series B, but i cant find information
    What is the standard for LJ flanges over 24in?
    Thanks in advance

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Share on linkedin
Share on facebook
Share on twitter
Share on whatsapp
Share on telegram
Share on print
Share on email

SHOP.PROJECTMATERIALS.COM

Buy Online!

ANSI Y-Strainers

🚀 Stock Delivery

🇪🇺 EU Origin

💰 Factory Prices

✅  Top Quality

SIZES       ⅜” to 12″
RATINGS 150# · 300# · 600# · 800#
GRADES  Carbon · Stainless
ENDS        Flanged RF · BW · THD · SW