69
Corrections
1.1 If circulation is not free, remove the
block.
1.2 Replace the faulty valve.
2.1 Replace relief valve and check the water
quality.
2.2 Replace relief valve
3.1 Replace relief valve
4.1 Replace relief valve
5.1 Replace relief valve and check the awter
quality.
6.1 Replace pin and sleeve.
7.1 Tighten or replace rubber legs.
Possible cause check-up and tests
1.1 Check the path of safety valve ensuring
circulation is free.
1.2 Safety relief valve is faulty
2.1 Safety relief valve is clogged.
2.2 Safety relief valve is faulty.
3.1 Safety relief valve is faulty.
4.1 Safety relief valve is faulty.
5.1 Safety relief valve is faulty.
6.1 Wear of components.
7.1 Pump’s rubber legs are loos or damaged.
11.4 Mechanical malfunction
Symptom
1. The safety valve does not
release pressure when
blow-off test is performed.
2. Safety relief valve opens at
pressure lower than
specified.
3. Safety relief valve opens at
pressure higher (more than
10%) than specified.
4. Safety relief valve does not
close in time (2-3
seconds).
5. Safety relief valve leaks
constantly.
6. Locking pin is loose in the
bronze sleeve.
7. Vibration during operation
of pump.
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