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Threaded Flange 螺纹法兰

产品 > FLANGE 法兰 > Threaded Flange 螺纹法兰

Threaded Flange 螺纹法兰

Threaded flange refers to a type of flange that uses threads to connect with pipes. The advantage is that no welding is required,  but he disadvantage is that the flange thickness is large and the cost is relatively higher. It's suitable for the connection of high-pressure pipelines. 

Threaded flange is a kind of non-welded flange by processing the inner hole of the flange into pipe thread and matching with the threaded pipe to realize the connection. Compared with flat welding flanges or butt welding flanges, threaded flanges have the characteristics of convenient installation and maintenance, and can be used on some pipelines where welding is not allowed on site. The alloy steel flange has sufficient strength, but it is not easy to weld, or the welding performance is not good, you can also choose the threaded flange. However, when the temperature of the pipeline changes sharply or the temperature is higher than 260℃ and lower than -45℃, it is recommended not to use threaded flanges to avoid leakage.
threaded flange
We GUTE is the manufacture that provide all kinds of  steel flanges like Threaded Flanges, Blind Flanges, Plate Flanges, Weld Neck Flanges, Slip On Flanges, Socket Weld Flanges, and so on, and also other special flanges according to the client's requirement.
Threaded Flange Specification:

StandardTypeClassSize
ASME B16.5Threaded150#-900#1/2"-24"
1500# 2500#1/2"-2 1/2"
DIN2565Threaded flange with NeckPN6DN6-DN200
DIN2566Threaded flange with NeckPN16DN6-DN150
DIN2567Threaded flange with NeckPN25 PN40DN6-DN150
DIN2568Threaded flange with NeckPN64DN10-DN150
DIN2569Threaded flange with NeckPN100DN10-DN150
JIS B2220Welding Flange, Lap joint flange, threaded flangePN6-PN100DN10-DN1500
Sealing SurfaceRF FF RTJ TF GF LF LM
Flange Face FinishStock Finish/Spiral Serrated/Concentric Serrated/Smooth Finish(Ra 3.2 and 6.3 micrometers)
125-250 AARH(it is called smooth finish)
250-500 AARH(it is called stock finish)
CoatingVanish, yellow paint, anti-rust oil, galvanizing etc
flange surfce coating treatment

Threaded Flange Material Grades:

Carbon SteelASTM /ASME A/SA105(N), A350 LF2/LF3, A694 F52, F56, F60, F65, F70
Alloy SteelASTM/ASME A/SA 182  F5, F9, F11, F22, F91
Stainless SteelASTM/ASME A/SA 182 F304, 304L, 304H, 310H, 316, 316H, 316L, 
316Ti, 317, 317L, 321, 321H, 347, 347H, 904L
Duplex and
Super Duplex
ASTM/ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61,
S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950
Nickel Alloy SteelASTM/ASME B/SB 564 UNS N02200(NICKEL 200), UNS N04400, (MONEL 400),
UNS N08825( INCOLOY 825), UNS N06600(INCONEL 600), UNS N06601(INCONEL 601),
UNS N06625(INCONEL 625), UNS N10276(HASTELLOY C276)
ASTM/ASME B/SB160 UNS N02201(NICKEL 201),  ASTM B/SB472 UNS N08020(Alloy 20)
Copper AlloyASTM/ASME B/SB151 UNS N07060, 71500, C70600(CuNi 90/10), C71500(CuNi 70/30)
TitaniumASTM/ASME B/SB381 Grade 2, Grade 5, Grade 7

Manufacturer, exporter & supplier of ASME/ANSI B16.5 Carbon steel Threaded Flanges, Alloy steel Threaded Flanges, Nickel alloy steel Threaded Flanges,  Stainless steel Threaded Flanges, Duplex steel Threaded Flanges, ASTM A105/105N, ASTM A350 Lf2, ASTM A694, ASTM A182, ASTM B564 Threaded Flanges manufaturer