What types of stainless steel flanges are there?

　　Stainless steel flanges are available to meet a variety of standards including DIN or metric and ANSI grade ratings. Within these standards you will find the most common flange types, and they can be custom machined to tailor the flange to your individual needs and intended application.

　　Common stainless steel flange types include:Threaded flange,Blind Flanges,Slip on flanges,Weld neck flange

　　Blind Flanges

　　The ANSI B16.5 RF Class 150 Forged Stainless Steel Blind Flange is a blank disc with bolt hole. These types of flanges are used with another type of flange to isolate the piping system or to terminate the piping as an end. Blind flanges are also used as a manhole cover in the vessel.

　　Threaded flange

　　Threaded Flanges are also known as screwed flange, and it is having a thread inside the flange bore which fits on the pipe with matching male thread on the pipe. This type of joint connection is Speedy and simple but not suitable for high presser and temperature applications. Threaded Flanges are mostly used in utility services such as air and water.

　　Slip on flanges

　　Slip-On flange has a hole with matching outside diameter of pipe from which pipe can pass. The flange is placed on pipe and fillet welded from both inside and outside. Slip-On Flange is suitable for low pressure and temperature application. This type of flange is available in large size also to connect big bore piping with storage tank nozzles. Normally, these flanges are of forged construction and are provided with the hub. Sometimes, these flanges are fabricated from plates and are not provided with the hub.

　　Weld neck flange

　　Weld neck flange are most widely used flanged in process piping. It gives the highest level of joint integrity due to Butt-welded with a pipe. These types of flanges are used in high pressure and temperature application. Weld neck flanges are Bulky & costly with respect to other types of flange.