Lap Joint Flanges (Loose Flanges) are usually used in conjunction with Lap Joint Stubs. Lap Joint Flanges (Loose Flanges) in carbon or low alloy steel piping systems are best used when frequent dismantling for inspection and cleaning is required. The use of Lap Joint Flanges (Loose Flanges) at points where severe bending stress occurs should be avoided.
Size: 1/8" NB TO 48"NB.
Class: 150#, 300#,400 #,600#,900#, 1500# & 2500 #.
Stainless Steel: ASTM A 182, A 240
Grade: F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex Stainless Steel UNS S31803, 2205, Super Duplex Stainless Steel UNS S32750
Carbon Steel: ASTM A 105, ASTM A 181
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276
Copper Alloys: Copper, Brass & Gunmetal
Flange Facing Types OF Lap Joint Flanges (Loose Flanges):
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)
ANSI: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN: DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S: BS4504 , BS4504, BS1560, BS10
Natural gas,chemical,petroleum,ship building,marine,paper making, metallurgy, electric, power, boiler , etc.
Yaang Pipe Industry, as a first class manufacturer of Lap Joint Flanges (Loose Flanges) in China, supplys a variety of stainless steel flanges to satisfy our customers’ specifica requirements, which include different size ,different schedule, different pressure and different finish faces. Our products are produced strictly according to the required standard. Our raw material for threaded flanges all are purchased from big steel companies which can make sure the material in a high quality.