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ASTM A105N Carbon Steel Threaded Flange ASME B16.5

Description of THD flange,what about its specification and advantages.

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What is a Threaded flange?

Threaded pipe flanges are the special type of flanges which can be attached to the pipe without welding. Threaded flanges are threaded in the bore which matches an external thread on the pipe. Threaded pipe flanges is just like to slip-on pipe flanges that are used with pipes that have external threads.

Specification of a THD Flange

Size Range 1/2″-24″/DN15-DN60
Pressure Rating Class150/300/600/900/1500/2500lb
America Standard ASME B 16.5/ASME B 16.47 SERIES a/b
Carbon Steel ASTM A150/A150N
Low Tem Carbon Steel ASTM A350 LF2/LF3
Pipeline Steel ASTM A694  F42/46/56/60/65
Alloy Steel ASTM A182 F11/F12/F5/F9/F91/F92
Stinless Steel ASTM A182 F304/304L/304H,316,316L,310S,317,347,904L

Advantages of THD 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.
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.
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.


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