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Figure 8: Overpressure protection
1
Hex nut
2
Set screw with bolt
3
Pressure spring
4
Head screws .27
5
Top part .27
6
Washer
7
Support
8
Sliding disk
9
Diaphragm .27
18
6 Overpressure protection .27
Overpressure protection is provided as standard on this HazLoc
model.
6.1 Dismantling and cleaning
To prepare for dismantling, refer to Section 5.2.
Tools
Qty
Tools
1
Allen key size 4mm
1
Torx screwdriver T10
Table 2
1. Unscrew the set screw (2) completely and remove it to relieve
the pressure spring (3).
Note: Do not adjust the hex nut (1), as this defines the pres-
sure and position for installation.
2. Undo the four head screws (4) and remove the top part (5).
3. Remove the pressure spring (3), washer (6), support (7),
sliding disk (8), and diaphragm (9).
It is recommended that you replace the diaphragm (9).
Cleaning the overpressure protection
4. Clean and dry the parts with a cloth. Do not use solvents for
cleaning, as they can harm plastic parts.
5. If compressed air is available, blow out the components.
6.2 Assembling
1. Insert the diaphragm (9) in the connecting plate.
2. Place the parts on the diaphragm (9) in the following order.
Sliding disk (8), support (7), and washer (6).
3. Place the top part (5) on the connecting plate.
4. Tighten the four head screws (4) in a diagonal sequence to 0.7
Nm.
5. Insert the pressure spring (3) and turn the set screw (2) to its
original position. Secure with the hex nut (1).
The pressure setting on the overpressure relief valve must be
checked.
Installation Instructions UFK 1.1100 Ex
NOTICE
KNF Flodos UFK1.1100Ex O&M-Rev2
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