Performance / Output Data - SIKA Aliva 257 Top User Manual

1 Introduction
1.4

Performance / Output data

Details on the correct and efficient use of your machine are contained in the
«Technical Data» chapter of the appropriate operating instructions.
There you can find the following diagrams, from which you can read-off or calculate
the amounts to be conveyed, the conveying distance, air consumption, etc. You will
also find a machine-specific example calculation of the air volume there.
1.4.1
We provide an example calculation here to show you how to calculate the air
requirements.
3
Task 4 m
50/70 mm.
Basics • Clean hose lines, curve radii min. 50 x NW.
• Moisture of dry mixture: max. 4%.
• Height above sea level 400 m.
Calculation
• Theoretical compressed air
• Empty air resistance
• Required pressure of supply air
The intake air pressure must be at least 1 bar higher than the pressure of the
supply air.
Dry-spraying hose ø50
Reference values for air consumption and pump pressure
4.2
1
Conveying dist.
Air consumption
8
Example calculation
/h dry mixture is to be conveyed 120 m; the selected hose diameter is
consumption
6
5
4
3
2
1
0
20 40 60
7,2
spare parts and accessories, thin stream
Approx. 9.8 m
(rounded off, because pneumatic supplies
can not be calculated with 100%
accuracy)
approx. 1 bar
approx. 4.2 bar
3
6m /h
80 100 120 140 160
8,7 9,8 10,5
9.8 10

3 3
/min 10 m /min
3
3
5m /h
4m /h
3
3m /h
3
2m /h
Empty air
180 200 220 240
[m]
11,3 12 [m3/min.]