Blog

Basically Forging is the process of forming and shaping Metal using a Hammering, Pressing or Rolling method. There are four main types of processes used to produce Forgings. These are Seamless Rolled Ring, Open Die, Closed Die and Cold Pressed. The Flange Industry uses two Types. The Seamless Rolled Ring and Closed Die processes. All

What are Lap Joint Flanges?

Type A Stub Ends are standard length and Type B Stub Ends are longer in Length for the Higher Pressure Flanges with Longer overall length. A Stub end Flange or more commonly called Lap Joint Flanges are used with Stub Ends. A Stub End adapter slides thru the Flange and is welded to the pipe.

What is a Skirt Flange?

Skirt Flanges are just one of the Custom Engineered Pipe Flanges we produce here at Coastal Flange. A Skirt Flange is a Pipe Flange with a short piece of Pipe welded to it for use with cement lined pipe. The Skirt Flange is lined with a Cement-Mortar mix and is applied according to AWWA C

The Stud Bolt is made up of three parts, a fully threaded rod and two Heavy Hexagonal Steel Nuts. The Stud is covered by ASME B1.1 and the Nuts are covered by ASME B18.2.2. The ASME B16.5 and B16.47 Specifications determines the quantity and size of the Studs and Nuts for Pipe Flanges. The Stud

In Piping Systems a Flange Gasket is placed between two connecting Flanges to create a leak proof seal. The three primary types of Flange Gaskets are Non-metallic, Semi metallic and Metal Gaskets. The Non-metallic Flange Gaskets are used in low pressure, low temperature and noncritical service applications. These are supplied as a Ring Gasket for

What is an Orifice Flange?

The Orifice Flange is used to measure the flow of product through the piping system. When the Orifice Plate is installed there is a restriction of flow creating a differential pressure and this is used to measure the flow rate of liquids, steam or gases. The Orifice Plate is a thin plate with a center

What is a RTJ Flange?

The Ring Type Joint or RTJ refers to the type of Gasket required for the Flange. The Ring Type Joint was designed for the Petroleum and Petrochemical industries where higher pressures and temperatures are present. The sealing surface is a high tolerance groove cut into the face of the Flange with a maximum of a

The Five basic Finishes for ASME B16.5 and ASME B16.47 Flanges are the Stock Finish, Spiral Serrated Finish, Concentric Serrated Finish, Smooth Finish and Cold Water Finish. The Stock Flange Finish is a continuous groove produced by using a 1/16” radius round nosed tool with a feed of 1/32” per revolution. This is the Standard

A Long Weld Neck Flange is an integral self-reinforcing Flange connection primarily for ASME Pressure Vessel applications. The Long Weld Neck Flange was designed to be used in place of a Weld Neck Flange and piece of pipe for a bolt up connection to the vessel. This design reduced the stress on the neck and

The following are the 6 types of Flanges most used in process piping systems. The Weld neck Flange is the most often used and is easy to recognize by the tapered hub where the pipe welds to the Flange. The Weld neck Flange is supplied with a bore that matches the pipe so there will

^