Schemata, Tables, Diagrams

Principle of Schemata

As supplier of complete systems, we as SCHAAF regard ourselves obliged to be our customers’ consultant in all aspects of bolt tensioning. Therefore, we produce various schemata, tables, diagrams and calculations on your request. These could be, for example:

Tables for the sequence of tightening bolts in several steps
Thread calculations -> tolerance considerations
Flank clearance calculations
Pressure-Force-Diagrams
Flow charts
Customized documents

If you have any questions in this respect, do not hesitate to contact us.

Example

Example of a sequencing table for tightening a flange joint with 24 bolts in 3 steps Bolt Tensioner SSV M36, SCHAAF drawing no. A2834 Operating sequence:

a) number the bolts consecutively b) tighten the bolts in three steps following the table c) do a final check patrol

Bolt No.	Pressure 1. passage	done	Pressure 2. passage	done	Pressure 3. passage	done	Check patrol
1,13	800		1100		1569
7,19	800		1100		1569
4,16	800		1100		1569
10,22	800		1100		1569
2,14	800		1100		1569
8,20	800		1100		1569
11,23	800		1100		1569
5,17	800		1100		1569
12,24	800		1100		1569
3,15	800		1100		1569
6,18	800		1100		1569
9,21	800		1100		1569

Schemata, Tables, Diagrams

Principle of Schemata

Example

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