How to measure threaded flange?
Take the measurements of the following:

• O: Flange Diameter
• Q: Flange Thickness
• X: Hub Diameter at Base
• RF: Raised Face Diameter
• BC: Diameter of bolt circle
• L: Length through hub
• T: Thread Length

Key Features of Threaded Flanges:

• No welding is required.
• Good for small pipe sizes.
• Should be avoided for larger loads, especially when subjected to higher torque.

Uses of Threaded Flanges:

• 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.

Product Range
Size : 1/8″ NB TO 48″NB.
Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 # 

Stainless Steel : ASTM A 182, A 240
Grade : F 304, 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