Types of Screwed Flanges

There are various types of threaded flanges are as follows:

1. Plain Threaded Flanges

2. Female Threaded Flanges

3. Male Threaded Flanges

Standards, Dimensions & Weight

Threaded flanges can be used in high pressure environments and their main advantage is that they can be assembled without welding.
ASME/ANSI B16.5 Class 150 TH/ Class 300 /Class 600 /Class 900
DIN 2565 PN6 / PN10

Advantages of threaded flanges :

Threaded flanges are threaded in holes that match the external thread of the pipe. Threaded flanges are used with pipes with external threads. These flanges have the advantage of joining without welding.

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″. 
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

Material:

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

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Threaded flange is a flange that connects threads to pipes. When it is designed, it can be treated by a loose flange. The advantage is that there is no need for welding, and the additional torque on the cylinder or pipe when the flange is deformed is very small. The disadvantage is that the thickness of the flange is large and the cost is high. It is suitable for the connection of high pressure pipe.
The threaded flange is made from the inner hole of the flange into pipe thread and connected with the pipe with thread, which is a non welded flange. Compared with the flat welding flange or butt welding flange, the threaded flange has the characteristics of convenient installation and maintenance, and can be used on some pipelines which are not allowed to be welded on the spot. Alloy steel flanges are of sufficient strength, but they are not easy to weld or have poor weldability. Threaded flanges can also be selected. However, if the temperature changes rapidly or the temperature is higher than 260 C below -45 C, it is recommended not to use threaded flange to avoid leakage.

Using of threaded flange
Threaded flanges area unit wide demanded as pipe flanges .known as as rib pipe flanges employed in completely different industrial applications.
Threaded Flanges also are referred to as screwed projection, and it’s having a thread within the projection bore which inserts on the pipe with matching male thread on the pipe. this sort of joint affiliation is Speedy and easy however not appropriate for top presser and temperature applications. threaded Flanges area unit largely employed in utility services reminiscent of air and water.

Threaded (Screwed) projection is comparable to the Slip On flange, however the bore is rib. Its chief benefit is that it are often assembled withour fastening, explaining its use in low services at standard part temperatures, and in extremely explosive areas wherever fastening produce a hazard.
They are the special form of pipe flanges which might be connected to the pipe while not fastening.

Types of Screwed Flanges
The various types of threaded flanges are as follows:
1. Plain Threaded Flanges
2. Female Threaded Flanges
3. Male Threaded Flanges
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/ Class 300 /Class 600 /Class 900
DIN 2565 PN6 / PN10

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