Quick test for the discharge valve:
• Lower the inlet pressure
– if the discharge valve opens (it drops), the function
is o.k.
5.1.3 Testing outlet check valve
Take note of the instructions of the test control unit
TKA295
1.
Procedure according to instruction of the test control
unit TKA295
5.2 Maintenance
Do not use any cleansers that contain solvents and/or
alcohol for cleaning the plastic parts, because this can
cause damage to the plastic components - water
damage could result.
Detergents must not be allowed to enter the
environment or the sewerage system!
5.2.1 Discharge valve
1.
Close shut-off valve on inlet
2.
Close shut off valve on outlet
3.
Release pressure using the three ball valves
4.
Unscrew pressure control line
5.
Open screws on the lid
6.
Remove cover
7.
Push clamp together and remove
8.
Remove discharge valve upwards
• Clean or replace as required
9.
Grease O-rings for drinking water installation well with
admissible greasing agent, replace damaged O-rings
10.
Reassemble in reverse order
11.
Test function (see 5.1 Inspection)
5.2.2 Check valve
1.
Close shut-off valve on inlet
2.
Close shut-off valve on outlet
3.
Release pressure using the three ball valves
4.
Open screws on the lid
5.
Remove cover
6.
Push clamp together and remove
7.
Twist securing ring out of the receiving slot
MU1H-1242GE23 R0320
GB
CAUTION!
Risk of injury - Check valves are under spring
tension!
8.
Pull out the check valve
• disassemble the outlet check valve first, and the
inlet check valve
• Clean or replace as required
• Leaking check valves must be replaced.
• If the edge seals are worn, you can switch the
cases of the two check valves with each other (see
5.2.3 Conversion check valves)
9.
Reassemble in reverse order
• Grease the O-ring on the check valve with
greasing agent admissible for drinking water
• Do not damage 'O' ring during assembly
10.
Test function (see 5.1 Inspection)
5.2.3 Conversion check valves
CAUTION!
Risk of injury - Check valves are under spring
tension!
1.
Disassemble both check valves by loosening the
hexagon bolt
2.
Assemble the housing of the inlet check valve with the
components of the outlet backflow preventer
3.
Assemble the housing of the outlet check valve with
the components of the inlet check valve
6
Disposal
Observe the local requirements regarding correct waste
recycling/disposal!
5