Lap - Joint Flanges

Lap - Joint Flanges

Lap Joint Flanges ASME B16.5 Manufacturers, Exporters & Suppliers across the Globe.

304/304L Lap Joint Flanges (SOLJ), 310/310S Lap Joint Flanges (SOLJ), 316/316L Lap Joint Flanges (SOLJ), 317/317L Lap Joint Flanges (SOLJ), 321/321H Lap Joint Flanges (SOLJ), 446 Lap Joint Flanges, 347/347H Lap Joint Flanges.  

Stainless Steel, Titanium, Duplex Steel, Copper Nickel Alloy, Hastelloy, Alloy Steel, Alloy 20, Carbon Steel, Monel & Inconel Lap Joint Flanges.

Lap - Joint Flanges are similar to slip-on flanges, but it is having a radius at the intersection of the bore & the flange face in order to accommodate a lap stub end. The face on the stub end is forming a gasket face on the flange.

Lap - Joint Flanges are widely used in various applications where section of piping systems needs to be dismantled quickly as well as to easily inspect or replace it.


Material of ConstructionStandard Grades
Stainless Steel Lap Joint Flanges ASTM A240, A182
904L, 201, 202, F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316Ti, 316H, 316L, 316LN,  317, 317L, 321, 321H, 347, 347H
Carbon Steel Lap Joint Flanges ASTM A105 Gr. F70, 65, 60, 56, 52, 46, 42,      
Alloy Steel
Lap Joint Flanges
ASTM A182 F91, F22, F11, F9, F5, F1
Nickel Alloy
Lap Joint Flanges
ASTM SB160, SB162, SB564,  SB472  Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201),
Monel 400 (UNS No. N04400), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 625 (UNS No. N06625), Inconel 600 (UNS No. N06600), Inconel 601 (UNS No. N06601), Monel 500 (UNS No. N05500),
Alloy 20 (UNS No. N08020), Hastelloy C 276 (UNS No. N10276)
Copper Alloys Lap Joint Flanges ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 12200, 10200, 12000, 10300, 10800  
Low Temperature Carbon Steel Lap Joint Flanges ASTM A350 LF3, LF2
Duplex Steel Lap Joint Flanges ASTM A240, A182
UNS F 61, F 60, F 55, F 53, F51, F 45, F 44,     
Dimensional Tolerances of Lap Joint 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