Marking onflange (Flange Marking) is information that is hammered or pumped onto the flange. to specify the important specifications of the product Helping users, engineers and purchasing departments Flanges can be checked and selected according to the standards of the pipe system.
In the industry, reading Marking correctly reduces the risk of using the wrong flange. reduce work problems and increase the security of the overall system
Common information in Marking Flange
1. Material grade
It is used to identify metal types and the mechanical properties of the flange, such as
– SS400 – Carbon Structural Steel
– A105 – Carbon Steel for pressure applications
– SS304 / SS316L – Stainless Steel for applications that require corrosion resistance.
2. Pressure rating
Tells the ability to receive the pressure of the flange, for example.
– 5K/10K/20K (JIS standard)
– 150/300 or 150p/300p (ANSI Class)
– PN10 / PN16 (DIN/EN)
3. Flange size
Specify the size used to connect to the pipes, for example:
– 6” (inch)
– DN150 (mm)
The size must be consistent with the pipes, valves and other equipment in the system.
4. Flange Standard
Define the format, dimensions, and punch holes of the flange, such as
– ANSI B16.5
– JIS
– DIN
In some cases, marking may be abbreviated to 10K or 150 based on the already used standards.
5. Name or manufacturer symbol
Used to specify the source of the product. improves credibility and convenient to check back in the project
6. Heat Number / Lot Number
is a production control number Used for quality inspection (QC)
Why is it important to read marking flanges?
- Reduce the error in choosing a flange.
- increase the safety of the pipe system
- Makes it easy to buy and inspect the job.
- It is important information in the examination of technical documents.
S.K. Fitting Valve Company There is a service to do marking at the flange. to meet the needs of customers
