How i determine number of bolts on flange

  • Thread starter sanjay pradhan
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For example, the flange thickness, number of bolt holes, and the material of the flange. Once you have this information, you can then use a flange bolt chart to determine the number of bolts needed.In summary, to determine the number of bolts needed for a flange, you will need to consider the pressure rating, flange diameter, and other specifications such as flange thickness and bolt size. You can either refer to a flange rating chart or a flange bolt chart to determine the appropriate number of bolts.
  • #1
sanjay pradhan
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how i determine number of bolts on flange
 
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  • #2
You will have to tell us much more before we will be able to give you a helpful answer. Are you building something and you want help deciding how to design a particular flange? Are you asking what resources are used by engineers to design such things? Or are you asking what theory and experiment lies behind these resources?
 
  • #3
Look at your local codes for flanges at the pressure and size that you are operating at. Alternatively go on a flange manufacturers website they'll give you details.
 
  • #4
flange dia-335mm
pcd- 290 mm
bolt size - M12
Is it ok?
If yes then provide proper calculation with formulas
 
  • #5
Depending on your application, it might be easier to determine what pressure rating you need and along with your flange diameter 335 mm which is around 13 inches, look for a a flange rating chart. This will tell you the size of bolts and number of bolts for that flange of that particular rating.

Otherwise, you will need a bit more information for your flange.
 

1. How do I determine the size of bolts needed for a flange?

The size of bolts needed for a flange is determined by the size and type of the flange, as well as the pressure and temperature of the system. It is important to consult industry standards and codes for specific guidelines on bolt size selection.

2. What is the recommended bolt pattern for a flange?

The recommended bolt pattern for a flange is typically determined by the size and pressure rating of the flange. It is important to follow industry standards and codes for proper bolt pattern selection and to ensure the flange is securely fastened.

3. How do I calculate the number of bolts needed for a flange?

The number of bolts needed for a flange is typically determined by the size and pressure rating of the flange, as well as the bolt size and recommended bolt pattern. It is important to follow industry standards and codes for proper bolt calculation to ensure the flange is securely fastened.

4. Can I use any type of bolt for a flange?

No, it is important to use bolts specifically designed for flange connections. These bolts are typically made of materials that can withstand high pressure and temperature, and have specific dimensions and thread types to ensure a secure connection.

5. How often do I need to replace the bolts on a flange?

The frequency of bolt replacement on a flange depends on a variety of factors such as the environment, pressure and temperature of the system, and the type of bolts being used. It is important to regularly inspect the bolts and follow industry standards and codes for recommended replacement intervals.

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