12
Operating instruction bladder accumulator BLAK - English
6
Maintenance
6.1
General maintenance notes
The pressure equipment will be largely maintenance-free after filling.
To ensure perfect operation and long life of the pressure equipment, carry out the following services to
the schedule specified by the operator.
Weekly checks of the pre-inflation pressure (P
0
) in the first month of operation is recommended,
monthly checks will suffice thereafter. The checking intervals should ultimately be guided by the
pressure drop actually found after certain intervals.
The following monthly checks are furthermore recommended initially: The intervals may then be
adjusted, depending on experience gained:
•
Check the accumulator anchoring.
•
Check the connections for the lines.
•
Inspect and assess the condition of the instrumentation, safety systems and seals.
•
Use foaming agents to check all screwed connections, shut-off valves, connections and joints for
gas leakages.
•
Check the N2 pre-inflation pressure (P
0
).
•
Regularly check the internal coating for wear when using abrasive or corroding fluids.
6.2
Initial operating, repeated inspection and periods of repeated inspection
Initial operating
In Germany, the pressure equipment is subject to the Operational Safety Ordinance. §15 will apply to
commissioning.
Repeated inspection
§16 of the Occupational Safety Ordinance sets the schedule for routine testing (pay attention to the
according national directives of the set-up country, see Chapter 3.5).
Roth Hydraulics GmbH recommends the following periods:
•
External tests every 2 years
•
Internal tests every 5 years
•
Pressure tests depending on the number of load cycles, but after 10 years at least.
The customer must agree on the intervals of repeated inspection with the local authorities.
Initiation and execution
The operator must be responsible for compliance with and execution of period of repeated inspection
(see Operational Safety Ordinance, Section 3).
.
