How many flange types are there?

Pipe flanges can be divided into eight types based on design. These types are blind, lap joint, orifice, reducing, slip-on, socket-weld, threaded, and weld neck.

What are the two main types of flanges?

Different Types of Flanges and Their Uses
  • Weld Neck Flanges. …
  • Slip-on Flanges. …
  • Threaded Flanges. …
  • Blind Flanges. …
  • Socket Weld Flanges. …
  • Orifice Flanges.

What is flange and types of flanges?

A pipe flange connects piping and components in a piping system by use of bolted connections and gaskets. Most commonly used flanges are weld neck flange, slip on flange, blind flange, socket weld flange, threaded flange and lap joint flange (RTJ Flange).

How many types of flanges in piping?

5 are.. Welding Neck, Slip On, Socket Weld, Lap Joint, Threaded and Blind flange. Below you will find a short description and definition of each type, completed with an detailed image. All types except the Lap Joint flange are provided with a raised flange face.

Why are flanges used?

Flanges are used to connect pipes with each other, to valves, to fittings, and to specialty items such as strainers and pressure vessels. A cover plate can be connected to create a “blind flange”. Flanges are joined by bolting, and sealing is often completed with the use of gaskets or other methods.

What is flange standard?

A flange standard lays down the dimensions, surface finish, facing type, marking, material and technical specifications for flanges. National flange standards in Europe have largely been superseded by the European EN 1092 series.

What is RF in flange?

The raised face (RF) is the most common type of flange facing used. It is called a raised face flange because it has a raised surface above the bolting circle where the gasket is placed. These flanges are widely used in oil and gas pipelines. They are appropriate for both high and low temperatures and pressures.

How do you identify a flange?

You need to find the outer diameter, the inner diameter, the number of bolt holes, bolt hole diameter, and the bolt circle diameter. Bolt circle diameter (B.C.) is one of the most important measurements to make when identifying a flange.

How are flanges specified?

A flange is specified by identifying the following information: Type and Facing (For Example, WN/RTJ, SO/RF, Lap Joint/RF). This is a very short identifier that describes the design of the flange and the type of flange facing. Nominal Pipe Size.

What is the difference between RF and RTJ flange?

RTJ flanges have grooves in their sealing faces, while RF flanges do not. If you want to make a connection between the two flanges, you can only apply a flat gasket. This flat gasket wil be make full contact with de sealing surface of the RF flange, but not with the sealing surface of the RTJ flange.

What are flanges in the human body?

a projecting flat rim used for strengthening or attachment. Also Read. Cochlear implants. Cochlear implants are devices inserted under the skull that directly translate sound into electrical impulses in the auditory nerves, and can help people hear when conventional hearing aids are no help.

How many types of elbow are there?

Common Elbow Types

There are three main types of elbow: long radius elbows, short radius elbows, and impact/vortex elbows.

Which type of flange is used in high pressure services?

Ring Joint Face (RTJ): Used in high-pressure and high-temperature processes, this face type features a groove in which a metal gasket sits to maintain the seal. Tongue and Groove (T&G): These flanges feature matching grooves and raised sections.

Why is it called a flange?

From dialectal English flange (“to project”), flanch (“a projection”), from Old French flanche (“flank, side”). See flank. As a term for a group of baboons, it was popularized in the comedy TV series Not the Nine O’Clock News.

What is the first phalange?

The proximal phalanx of the fingers is the proximal, or first bone, in the fingers when counting from the hand to the tip of the finger. There are three phalanges in each finger. The proximal phalanx is the largest of the three bones in each finger; it has joints with the metacarpal and with the middle phalanx.

Is flange a fitting?

One of the most common types of pipe fitting is the flange. Flange pipe fittings are reliable and cost-effective mechanical connectors used in high-pressure piping applications.

What is flange size?

The average flange is between 24 and 27 millimeters (mm)—which corresponds to the size of your nipple—but not everyone who breastfeeds will fit these sizes. You can get smaller or larger flanges depending on the material: plastic flanges range from 21 mm to 36 mm and there is a 40 mm glass flange available.

What flange means?

Definition of flange

(Entry 1 of 2) 1 : a rib or rim for strength, for guiding, or for attachment to another object a flange on a pipe a flange on a wheel. 2 : a projecting edge of cloth used for decoration on clothing a jacket with flange shoulders. flange.