Socket Weld Flange RF

There are three connection method that socket weld, butt weld and threaded. All of them have a wide range of applications. Socket Weld Flange RF is commonly used in Pipes with pressure less than or equal to 10.0 mpa and nominal diameter no more than 40 mm.

We always describe Socket Weld Raised Face Flange as SWRF Flange, it is more simple and easy. SW is the flange type and RF is the sealing type. They are the most important part of flange. And also the pressure rating.

What is RF Flange

RF (Raised Face) is the Flange Sealing Type. Because gasket surface are raised about the bolting circle face, named it as raised face. socket weld flange with Raised Face concentrates more pressure on a smaller gasket so the joint can bear more pressure. It is a most common sealing type, and often used in combination with SW.

ANSI B16.5 Flange Pressure

American standard flange usually used in the condition of pressure grade is PN2 PN5 and sometimes is PN10. And ANSI B16.5 is one of the American standard we often use in flange.

The pressure grade of ANSI B16.5 can be class 150,300,600,900,1500 and 2500, the pressure grade determines the height of the RF. The standard height is 1/16″ for socket weld flanges under 400#. Otherwise, the standard socket weld flange raised face height is 1/4″.

Forged Flange Manufacturer & Stockist

ZIZI Engineering company provides Socket Weld Flange Raised Face in all material grades, specifications and sizes in strict accordance with ANIS B16.5.

We have professional technicians and efficient production line, can fulfill your requests about Socket Weld Flange RF, and provides your goods in time. Customers around the world buy our products which have CCC product certification.