How can flanges be classified based on Pressure- temperature ratings?

How can flanges be classified based on Pressure- temperature ratings? Answer: Flanges are classified based on pressure temperature ratings as: – A. 150# B. 300# C. 400# D. 600# E. 900# F. 1500# G. 2500# Pressure temperature rating carts in the standard ASME16.5 specify the non-shock working gauge pressure to which the flange can be […]

 
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What is a Reducing Flange

A reducing flange consists of a flange with one specified diameter having a bore of a different and smaller, diameter. Except for the bore and hub dimensions, the flange will have dimensions of the larger pipe size. Reducing flange is designed for when there is a change in the pipe size. The predominate flange (dimensions) […]

 
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What is a Spectacle Blind Flange

A Spectacle Flange (also called a Spectacle Blind Flange) is+ a pressure-retaining plate with one solid end and one open end connected with a web or tie bar. Specifications: Size: 1/2” to 60”, DN 12mm to DN 1500mmPressure class: Class 150 to Class 2,500, PN 2.5 to PN 250Facing: RF / RTJ A spectacle flange […]

 
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What is a Flange Bolt

A flange bolt differs from the common bolt in that it has a wider surface area under the head to provide for an even distribution of clamping pressure. This wider surface acts like a washer, eliminating the need to combine one with this kind of bolt. Flange bolts are available in numerous sizes, strengths, and configurations. Like […]

 
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What is a Studding Outlet Flange

Studding Outlet Flange is a standard plate flange with a raised face and blind, drilled and tapped holes. Dimensions Studding Outlet Flanges, ANSI CLASS 150, ASME B16.5, 1/16″ RAISED FACE (IN) DATASHEET Dimensions to ASME B16.5 – Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard Pipe Size (NPS) Outside Diameter of […]

 
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What is a Long Weld Neck Flange

Long Neck Welding (abbreviated LWN) flanges are similar to a standard Welding Neck flange, but the “Neck” is considerably longer. This type is often used as a nozzle for a barrel or column. In addition, there are the type LWN Heavy Barrel (HB) and the Equal LWN Barrel (E); they have a different shape and […]

 
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What is a Screwed Flange

Screwed Flange is rather simple flange with internal screwed/threaded bore for connecting with external screwed pipes.  All other properties similar to standard pipeline flanges. Why Screwed Flanges? Screwed Flanges has internal screwed or threaded boring for connecting with screwed pipelines. Screwed Flanges can be used where there is frequent mounting & dismounting of joint. Usually […]

 
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What is a Ring Type Joint Flange

A Ring Type Joint Flange is termed for pipelines flange with Ring Type Joint Facing. Any Standard & Non Standard Flanges can be machined for Ring Type Joint Facing. A Ring Type Joint is basically a Flange Joint connection or more commonly known as a flange facing. Ring Type Joint Mechanism Any two flanges are […]

 
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What is a Orifice Flange

Orifice Flange is a like any other flange with an introduction of a screwed opening over the thickness of the flange termed as orifice for connecting a flow meter measuring the differential flow rate over the two mated flange. Why Orifice Flange? Orifice flange is useful for introducing the orifice for measuring flow meter over […]

 
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