Flanges
Flanges
Flanges
Description:- Weld Neck flanges Range: - 15 NB TO 1500NB (1/2 to 60") ANSI B 16.5 (150#, 300#, 400#, 600#, 900#, 1500# & 2500#) Material: Stainless Steel - ASTM A-182 (304, 304L, 316, 316L Carbon Steel - ASTM A-105, A-350 LF2, IS 2062, AS 516 Gr. 70, C45 Alloy Steel - ASTM A-182 F5, F9, F11, F12, F21, F22.
Description:- Slipon Flanges Range: - 15 NB TO 1500NB (1/2 to 60") ANSI B 16.5 (150#, 300#, 400#, 600#, 900#, 1500# & 2500#) Material: Stainless Steel - ASTM A-182 (304, 304L, 316, 316L Carbon Steel - ASTM A-105, A-350 LF2, IS 2062, AS 516 Gr. 70, C45 Alloy Steel - ASTM A-182 F5, F9, F11, F12, F21, F22.
Description:- Blind Flanges Range: - 15 NB TO 1500NB (1/2 to 60") ANSI B 16.5 (150#, 300#, 400#, 600#, 900#, 1500# & 2500#) Material: Stainless Steel - ASTM A-182 (304, 304L, 316, 316L) Carbon Steel - ASTM A-105, A-350 LF2, IS 2062, AS 516 Gr. 70, C45 Alloy Steel - ASTM A-182 F5, F9, F11, F12, F21, F22.
Description:- Screwed or Threaded Flanges Range: - 15 NB TO 1500NB (1/2 to 60") ANSI B 16.5 (150#, 300#, 400#, 600#, 900#, 1500# & 2500#) Material: Stainless Steel - ASTM A-182 (304, 304L, 316, 316L Carbon Steel - ASTM A-105, A-350 LF2, IS 2062, AS 516 Gr. 70, C45 Alloy Steel - ASTM A-182 F5, F9, F11, F12, F21, F22.
Collar Flanges
Lap Joint Flange
Reducer Flange
Tongue Flange
Groove Flange
Long Weld Neck Flange
Flanges
Flanges
Flanges
Flanges
A pipe flange connects piping and components in a piping system by use of bolted connections and gaskets. Most commonly used flanges are weld neck flange, slip on flange, blind flange, socket weld flange, threaded flange and lap joint flange (RTJ Flange). This type of connection in a pipe flange allows for ease of disassembly and separation for repair and regular maintenance. Most common specification for carbon steel and stainless steel flange is ANSI B16.5 / ASME B16.5.
A slip-on flange is connected to the pipe or the fittings by two fillet welds, one executed inside and one outside the cavity of the flange. The bore size of a slip-on flange is larger than the outside diameter of the connecting pipe, as the pipe has to slide inside the flange to be connected by the execution of a fillet weld. Slip-on flanges are also defined Hubbed Flanges and they are easy to recognize due to their slim and compact shape.
A welding neck flange (WN) features a long tapered hub that can be welded with a pipe. This flange type is used, normally, in high-pressure and high/low temperatures applications that require an unrestricted flow of the fluid conveyed by the piping system (the bore of the flange matches with the bore of the pipe). The absence of pressure drops prevents negative effects as turbulence and erosion/corrosion of the metals in the proximity of the flanged joints. The tapered hub allows a smooth distribution of the mechanical stress between the pipe and the weld neck flange and facilitates the execution of radiographic inspections to detect possible leakages and welding defects. The dimension of the flange (NPS and the pipe schedule) shall match the dimension of the connecting pipe.
