How to use the Bolting Calculator

1. In the left menu, click on the Bolting Calculator button.

This will load the Torque Calculator Module.

2. Once the module loads, please choose the type of connection. Currently, the Bolting Calculator supports Flanges and Hub and Clamps.

3. Choose a Torque Calculation Method. The ASME PCC-1 Long Form Equation is the equation used in Appendix K. 

The ASME PCC-1 Short Form Equation uses the Nut Factor (K).

4. Enter your connection details.

Required fields are denoted with a *. Most of the fields are required. 

If you leave your mouse over one of the labels, it will show a helpful tooltip.

Different fields may appear and be required depending on the Flange Standard selected.  

• Nominal Pressure: The range for the pressure starts at 150# and goes up to 2500#. Depending on other selections, some of these values will be filtered out.
• Nominal Size: The size can range from half inch all the way up to 24 inches.
• Flange Material: You have 2 options for now, other options will be added as the system matures.
• Bolt Material: There are 20 values to pick from, if you do not see the option you are looking for, please reach out to support@flexitallic.com
• Lubricant: There are 40+ values to pick from that also include the Coefficient of friction, if you do not see the option you are looking for, please reach out to support@flexitallic.com
• Media is a type forward search, meaning as you type the characters of the Media you are looking for the list will begin to filter on items that contain those characters. For example if you begin typing Wa the list will filter to Water and Sea Water. You then pick the media from the shortened list.
• Insulated Connection: If the connection is insulated or not will affect the torque values.

 5. Please enter the fastener details.

If you set the temperature outside the Bolt Material range, the system will stop you from proceeding. You may see images like the below. 

The temperature range is between -30 and whatever the Tmax value is for Bolt Material, therefore it will vary depending on the values you provide.

6. Enter the Operating Conditions.

7. Enter the Gasket Details.

• Gasket Type: The gasket type will filter based on the thickness of the gasket you select. For some types of Gaskets the Gasket Thickness will not be shown.
• Gasket Thickness: There are 2 options for gasket thickness: 1.5mm and 3mm.

8. Press Calculate 

If the combination of values does not calculate a torque value, the system will indicate it by displaying a warning. This is an unsupported configuration. 

If your calculation is successful, then the orque Recommendation and Calculation Data sections will be populated with values.