Threaded Flanges, TH Flanges, Pipe flanges

Threaded (Screwed) flange is similar to the Slip-On flange, but the bore is threaded. Its chief merit is that it can be assembled withour welding, explaining its use in low pressure services at ordinary atmospheric temperatures, and in highly explosive areas where welding create a hazard.

Standards, Dimensions & Weight

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 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.

Size: 1/2" to 60", DN 12mm to DN 1500mm 

Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250

Facing: RF / RTJ

Cabon steel: A105, A350 LF2

Stainless steel: A182 F304/F304L/F316/F316L/F321

Alloy steel: F11, F12

Type: Welding-neck flange, slip on flange, screwed flange, blind flange, lap joint flange, socket-welding flange

Packing: plywood case and plywood pallet