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Flanges - Lap joint Flanges

 

Class 150 300 400 600 900 1500 2500
Diameter - A 30 38 ... 38 ... 38 ...
Diameter - D 90 95 ... 95 ... 120 ...
Thickness - B 9.6 12.7 ... 14.3 ... 22.3 ...
11.2 14.3 ... 20.7 ... 28.7 ...
Diameter - G 35.1 35.1 ... 35.1 ... 35.1 ...
Diameter - K 60.3 66.7 ... 66.7 ... 82.6 ...
Height - H 14 21 ... 22 ... 32 ...
15.6 22.6 ... 28.4 ... 38.4 ...
Bolt Holes 4 4 ... 4 ... 4 ...
Diameter - L 15.9 15.9 ... 15.9 ... 22.2 ...
Stud Bolts Diameter x Length
Diameter (in) 1/2 1/2 ... 1/2 ... 3/4 ...
Length (mm) 55 65 ... 75 ... 110 ...


Dimensional Tolerances of Socket Weld Flanges ASME B16.5

Outside Diameter
= 24 = 1.6 mm | > 24 = ± 3.2 mm
Inside Diameter
= 10 = ± 0.8 mm | = 12 = + 1.6 mm / - 0 mm
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm
Outside Diameter of Hub
= 12 = + 2.4 mm / - 1.6 mm | = 14 = ± 3.2 mm
Diameter of Counterbore
Same as for Inside Diameter
Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
= 2½ = 0.8 mm max. | = 3 = 1.6 mm max.
Thickness
= 18 = + 3.2 mm / - 0 | = 20 = + 4.8 mm / - 0
Length thru Hub
= 18 = + 3.2 mm / - 0.8 mm | = 20 = + 4.8 mm / - 1.6 mm

 

Notes:

1. Dimensions are in millimeters unless otherwise indicated.
2. The length of the stud bolt does not include the height of the chamfers (points).

We export worldwide

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We supply in India

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Our Product Range

Supplier and Manufacturer of Spectacle blind flanges | Supplier and Manufacturer of blind spades | Supplier and Manufacturer of spacer | Supplier and Manufacturer of aluminium 7075 bars | Supplier and Manufacturer of aluminium 7075 plates | Supplier and Manufacturer of aluminium 6061 pipes | Supplier and Manufacturer of aluminium elbows | Supplier and Manufacturer of aluminium flanges | Supplier and Manufacturer of alloy steel flanges | Supplier and Manufacturer of alloy steel fittings | Supplier and Manufacturer of alloy steel pipes |