It is necessary to purchase metal wound gaskets suitable for the current working conditions according to the conditions of the working conditions and the flange sealing surface type. When purchasing, try to use the products of the production enterprise with sound and effective operation of the q ...

So firstly we need to know what is hot galvanizing?Hot-dip galvanizing is an effective way of metal corrosion protection,which is mainly used in metal structures and facilities of various industries.It is to immerse the steel parts after rust removal into the molten zinc solution melting at abou ...

In the connection of pipeline flange, leakage and crack will occur after a long time without maintenance or under the influence of stress, which will directly affect the use of the flange. Therefore, when discovering the leakage of the flange, it is necessary to timely deal with it and make up t ...

How much do you know about flange types and sealing surfaces?Make a list today so you can understand more clearly. Flanges Standard Sealing surface Class grade PN，MPa Common valve supporting flange Type Code form Code Plate flange PL HG20593、 JB/T81-94、 GB/T9119-2000 Raised face RF 0.2 ...

The flange gasket used in general petrochemical equipment and sealed pipeline is usually made of asbestos (serpentine asbestos) and rubber. Its sealing texture has good oil resistance, heat resistance, corrosion resistance and tensile strength, so it is widely used in various industries to make ...

There are three types of spectacle flange:spacer,spade(paddle flange),spectacle blind flange.A spectacle blind flange is a combination of a spade and a spacer. The connection of spectacle blind plate is applicable to the connection of pipe fittings with diameter of φ 50-315mm. Its performance fe ...

Swivel flange is also called swivel ring flange.Which is consist of a forged outer ring flange,a heavy forged welding hub and a retainer ring.the hub can be rotated when the flange is installed.The outer ring flange is held in position by a retainer ring and can freely rotates around the inner w ...

We may be asked this question more than once: Can RTJ Flange be matched with RF flange? To fully answer this question,we should understand the structure of the RTJ and RF.(Types of flange sealing surface-FF,RF,RTG,TG) The Raised Face is a common type,easily to identify and it’s referred to RF be ...

The material of marine flange is stainless steel. Stainless steel is a kind of material with good corrosion resistance. This material can make the structural parts keep the integrity of design permanently. So now many building materials are made of stainless steel. Stainless steel flange is wide ...

The reasonable choice of forging materials is directly related to the quality of heat treatment. If the selected materials fail to reach the predetermined performance indexes through heat treatment, it is necessary to re-select the materials. The following questions should be paid attention to w ...

Flange plate has certain technical requirements and parameters in the production and use, according to certain ways and methods of production and processing: 1.The butt weld of the ring shall be subjected to post-welding heat treatment and be subject to 100% X-ray or ultrasonic inspection, and t ...

The flat welded flange is the most common used flange,it is a type of flange that is joined to a vessel or pipe by a fillet weld.There are the advantages and disadvantages of flat welded flanges: Advantages of flat welding flange: In order to press the sealing surface of the flat welding flange ...