Threaded Flange

  • Type: Thread Flange
  • Material: Carbon steel: A105, SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
  • Standard: ANSI, JIS, DIN, BS4504, SABS1123, EN1092-1, UNI, AS2129, GOST-12820
  • Size: 1/2-78 inch (DN15-DN2000)


Description

THREADED FLANGE

Threaded Flanges (Screwed flanges) are similar to slip-on flanges in outline, but the bore is threaded, thus enabling assembly without welding. This obviously limits its application to relatively low pressure piping systems. Threaded Flanges may be welded around the joint after assembly, but this is not considered a satisfactory method of increasing the flanges’ pressure applications. Threaded flange use in low pressure condition generally.

DESCRIPTION OF THREADED FLANGE

  • Type: Threaded Forged / Cast Flange
  • Material: Carbon steel: A105, SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8, Stainless Steel: F304 F304L F316 F316L 316Ti, Copper etc.
  • Standard: ANSI, JIS, DIN, BS4504, SABS1123, EN1092-1, UNI, AS2129, GOST-12820
  • Size: 1/2-78 inch (DN15-DN2000)
  • Pressure: ANSI class 150, 300, 600, 1500, 2500, DIN PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160
  • Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case
  • Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.
  • E-catalogue: Available , please visit catalogue of flange
  • Usage: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.Available ASTM standard:

Available ASTM standard:

ASTM / ASME SB 564 / 160 / 472.
ASTM / ASME SB 61 / 62 / 151 / 152
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
ASTM SA 240, ASTM A182
ASTM SA 182 F1/F5/F9/F11/F22/F91
ASTM A 105 Gr. F42/46/52/56/60/65/70
ASTM A350 LF2/A350 LF3

Dimensional Tolerances of Threaded Flanges ASME B16.5

Outside Diameter
≤ 24 = 1.6 mm | > 24 = ± 3.2 mm
Inside Diameter
Within Limits on Boring Gauge
Diameter of Contact Face
1.6 mm Raised Face = ± 0.8 mm
6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm
Drilling
Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm
Eccentricity of Bolt Circle with Respect to Facing
≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Outside Diameter of Hub
≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore
Same as forInside Diameter
Thickness
≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0
Length thru Hub
≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm