Safety relief valves
33501, 33502, 33503, 33521, 33601, 33602, 33603, 33621
Maintenance
BA(k)_033501.06
24 / 30 Albert Handtmann Armaturenfabrik GmbH & Co. KG 2023-07-27
10 Maintenance
10.1 Maintenance
Note
Inspection and maintenance work must be carried out by properly trained personnel
only.
Use only original spare parts and original accessories to yield full functionality of the
system/component. Damage resulting from the use of non-original parts and non-
original accessories will void any warranty or liability on the part of Albert Handtmann
Armaturenfabrik GmbH & Co. KG.
Warning – general danger!
Pressurised liquid, steam or gas constitutes a danger at connection points.
– Check the current system status (pressure, temperature, medium).
– All maintenance work must always be performed while depressurised and
cleaned.
Caution – functional impairment or material damage!
Jamming will impair the switching process of the valve.
– Safety relief valves must be lifted manually or pneumatically at periodical
intervals.
– The pressure springs are designed for load changes > 1 month.
Based on experience this corresponds to an operating time of 10-15 years.
The condition of the pressure springs should be checked in this time.
– A function check must be performed.
10.2 Inspection and Maintenance Intervals
Caution – functional impairment or material damage!
If the valve is not checked or maintained at regular intervals, this can lead to
malfunction or major functional disruption.
– Visual inspections must be carried out on an ongoing basis every 1-2 weeks.
>> Check electrical power supply and pneumatic supply
>> Check for leakage, check valve functions.
– To ensure that the safety relief valve is ready for operation and functionally
reliable, it should be checked every six months as part of the general internal
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