Lap Joint Flanges have all the same common dimensions as any other flange named on this page however it does not have a raised face, they used in conjunction with a “Lap Joint Stub End“.These flanges are nearly identical to a Slip On flange with the exception of a radius at the intersection of the flange face and the bore to accommodate the flanged portion of the Stub End.
Their pressure-holding ability is little, if any, better than that of Slip On flanges and the fatigue life for the assembly is only one tenth that of Welding Neck flanges.They may be used at all pressures and are available in a full size range. These flanges slip over the pipe, and are not welded or otherwise fastened to it. Bolting pressure is transmitted to the gasket by the pressure of the flange against the back of the pipe lap (Stub End).
|Type||Weld Neck,Slip On,Socket Weld,Threaded,Blind etc|
|Face||America Series:Flat face(FF),Raised face(RF),Tongue(T),Groove(G),Female(F),Male(M),Ring type joints face(RJ/RTJ)
Europe Series:Type A(Flat Face),Type B(Raised Face),Type C(Tongue),Type D(Groove),Type E(Spigot),Type F(Recess),Type G(O-Ring Spigot),Type H(O-Ring Groove)
Class 150 ,Class 300, Class 600, Class 900A ,Class 1500,Class 2500.
|Standard||ASME/ANSI B16.5,ASME B16.47,ASME B16.36,AWWA C207.DIN 2527,2573,2576,2631,2632,2633,2634,2635,2566,2642.EN 1092,BS 4504,JIS B2220,GOST 10820,10821 etc.|
|Material||Carbon Steel:ASTM A105,A350 LF2,SS400,P235GH,P250GH,C22.8,Q235,20#,16Mn.|
|Stainless Steel:ASTM A182 F304,F304L,F316,F316L,F321,F347,F310,F44,F51 etc.|
|Alloy Steel:ASTM A694 F42,F46,F52,F56,F60,F65,F70,A182 F5,F9,F91,F12,F11,F22 etc|
Stainless Steel Lap Joint Flange Product Show: