Alfa Laval FrontLine WideGap 100, Инструкция по эксплуатации, Страница: 26 / 30

Maintenance
Step 6
Press the plate pack together. Position the four tightening bolts
according to the figure.
Tighten the four bolts (1), (2), (3), (4) until the plate pack
measure
A is 1.10 making sure the frame plate and pressure
plate are parallel when closing.
A
A
3
1
2
4
Step 7
Tighten the four bolts (1), (2), (3), (4) evenly until dimension A
has been reached.
When a pneumatic tightening device is used, see table below for
maximum torque. Measure dimension
A during tightening.
Bolt with bearing box Bolt with washer Bolt size
Nm kpm Nm kpm
M30 900 90
M39 1300 130 2000 200
M48 2100 210 3300 330
For manual tightening, the tightening torque has to be estimated.
If dimension
A cannot be reached:
• Check the number of plates and the dimension A .
• Check that all the nuts and bearing boxes are running freely.
If not, clean and lubricate, or replace.
A
A
3
1
6
5
2
4
Step 8
Mount the remaining locking bolts and check measurement A
on both sides, top and bottom.
Step 9
Mount protection sheets (if provided).
Step 10
Connect pipes.
Step 11
If the heat exchanger does not seal when measurement A has
been reached, it can be tightened further to
A minus 1.0%.
Document ID Language Edition
26 Instruction Manual - Plate Heat Exchangers 3490017599 EN 2016-06