Shijiazhuang Bang dong Pipeline Technology Co,Ltd.
Model No.: Lap Joint Flanges
Standard: DIN, GB, JIS, ANSI, GOST
Type: Welding Flange
Material: Carbon Steel
Sealing Surface: FF
Manufacturing Way: Forging
Packaging: Wooden Case or as per buyer's requirements
Place of Origin: Cangzhou,China
Supply Ability: 1000pcs/month
ANSI B16.5 Class 150 Lap Joint Flanges . Lap Joint Flange is used with a corresponding stub-end that "inserts" in the inside of the flange. The main benefit of this type of flange, is that once the pipe welds to the insert stub-end, the flange then can rotate for easier alignment of the bolting holes. However, lap joint flanges and their stub-ends' ability to hold pressure is about the same as slip-on flanges. They are not suitable for situations with a high external or changing loads of force. They do provide an advantage in a piping system that needs frequent dismantling for inspection or to remove build-ups. If high pressure applications are being performed, either a swivel ring flange or an insert flange, is recommended to be used instead of a lap joint flange an Lap Joint Flange Stub End.
Pipe Flange Details :
Pipe flanges that are made to standards called out by Asme B16.5 or ASME B16.47, and MSS SP-44. They are typically made from forged materials and have machined surfaces. ASME B16.5 refers to nominal pipe sizes (NPS) from ½" to 24". B16.47 covers NPSs from 26" to 60". Each specification further delineates flanges into pressure classes: 150, 300, 400, 600, 900, 1500 and 2500 for B16.5, and B16.47 delineates its flanges into pressure classes 75, 150, 300, 400, 600, 900. However these classes do not correspond to maximum pressures in psi. Instead, the maximum pressure depends on the material of the flange and the temperature. For example, the maximum pressure for a Class 150 flange is 285 psi, and for a Class 300 Flange it is 740 psi (both are for ASTM A105 Carbon Steel and temperatures below 100F).
Flange dimensions are determined by the pipe size and the pressure class required for the application. Flanges are standardized according publications from organizations like ASME, MSS, API and others.
ASME/ANSI B16.5 flange provides Flange Type :
Slip On Flange
Weld Neck Flange
Spectacle Blind Flange
Spacer & Spade
flange dimensions for pipes ranging 1/2" to 24" - in classes ranging 150 to 2500.
Steel Pipe Dimensons - Schedule 40
Steel Pipe Dimensions - Schedule 80
ASTM A 105, ASTM A 181
ASTM A 182, GR F1, F11, F22, F5, F9, F91
Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276
Copper, Brass & Gunmetal
Lap Joint Flange Size
1/8" NB TO 48"NB.
150#, 300#,400 #,600#,900#, 1500# & 2500 #.
ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
BS4504 , BS4504, BS1560, BS10