ANSI B16.5 Threaded Flange

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ANSI B16.5 Threaded Flange，NPT Thread Flange,

Threaded flanges are widely demanded as pipe flanges i.e called as threaded pipe flanges used in different industrial applications.
Threaed flange

Threaded Flanges are also known as screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe.

This type of joint connection is Speedy and simple but not suitable for high presser and temperature applications. Threaded Flanges are mostly used in utility services such as air and water.

Threaded (Screwed) flange is similar to theSlip-On flange, but the bore is threaded. Its chief merit is that it can be assembled without welding, explaining its use in low pressure services at ordinary atmospheric temperatures, and in highly explosive areas.
Standards, Dimensions & Weight

Threaded Flanges can be used in very high pressure services and their major advantage is that they can be assembled without welding.

  • ASME/ANSI B16.5 Class 150 TH
  • ASME/ANSI B16.5 Class 300 TH
  • ASME/ANSI B16.5 Class 600 TH
  • ASME/ANSI B16.5 Class 900 TH
  • DIN 2565 PN6
  • DIN 2566 PN10
Uses of threaded flanges :

Threaded flanges are threaded in the bore which match an external thread on the pipe. Threaded flanges are used with pipes that have external threads. The benefit of these flanges is that it can be attached without welding.

  • Threaded flanges can be fitted to pipes of various sizes without welding and this is one chief benefit for which these flanges are highly demanded.
  • They can be used in extremely high pressure applications, particularly at or near atmospheric temperature, where the necessary post weld heat treatment is not possible.
  • They are ideal for small diameter piping applications.
  • They are economical and time saving devices.
  • These threaded flanges are normally designed for non-cyclic applications.
  • The flanges are suitable to be used in applications where welding is hazardous.
  • They can be used in highly explosive areas.
Details of Threaded flange

They are the special type of pipe flanges which can be attached to the pipe without welding.

Details of Threaded flange
1. Threaded flange 2. Thread 3. Pipe or Fitting

Threaded flanges are often used for small diameter, high pressure requirements. thread flanges with a hub have published specifications that range from 1/2″ thru 24″. 
Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ

Material:

Cabon steel: A105, A350 LF2
Stainless steel: A182 F304/F304L/F316/F316L/F321
Alloy steel: F11, F12

Type:
Threaded Flanges, TH Flanges, Plain threaded flanges, Female threaded flanges, Male threaded flanges

C&N is a  professional manufacturer of steel forged flange in China,

Our Flange production scope:

slip on flange,Plate flange, Weld Neck Flange Threaded Flange Blind Flange,

Class
150#, 300#, 600#, 900#, 1500#, 2500#

Standard ANSI
ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48

 

Description of Threaded Flange

  • Type: Threaded Flanges
  • 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
  • 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
ASME B16.5 Flange dimension tolerance:
OUTSIDE DIAMETER

≤ 24 = 1.6 mm
> 24 = ± 3.2 mm

 INSIDE DIAMETER

≤ 10 = ± 0.8 mm
≥ 12 = + 1.6 mm / – 0 mm
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.
DIAMETER OF COUNTERBORE

Same as for Inside Diameter

 OUTSIDE DIAMETER OF HUB

≤ 12 = + 2.4 mm / – 1.6 mm
≥ 14 = ± 3.2 mm
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
Categories: Threaded Flanges