Introduction of Serration on the flange face

We often hear of serration demand on flange face as a flange supplier.Today we would introduce what the serration is and serration types to you.

Flange face can be a smooth or serrated type like below picture. Which type of face to use, it depends on the type of the gasket and service of the fluid. The flange face with small grooves as you can see in the image, this machining is known as a serration. This serration is very critical to prevent the leak from the flange. Even small damage of the face can lead to a plant shutdown. So, if you are working with a flange, you have to take measures to protect the flange while handling.

Flange face

What types of serration are used on flange face?

Serration can be spiral or concentric rings as you can see in the slide. Concentric rings type finishing is used when fluid is of very low density. If you use spiral type finish with very low-density fluid, it may find a leakage path through the spiral cavity.

Serration on the flange face

Haihao Group is specialized in flanges for more than 30years.We are familiar with any demand of flanges.Don’t hesitate to contact us if you need any kinds of flanges.Email:sales@haihaogroup.com