HEROSE 0681 Serie Instrucciones De Servicio página 27

7 Maintenance and service
7.1 Safety during cleaning
Take note of the specifications in the safety data sheet, the general occupational health and

safety rules and the HEROSE information sheet "Use with oxygen" if degreasers are used for
process-related reasons for the cleaning of bearing parts, unions and other precision parts.
7.2 Maintenance
The maintenance and inspection intervals must be defined by the operating company according to the
operating conditions and the national regulations.
The manufacturer's general recommendations for the maintenance and inspection of the safety valves are
given in the table below and are based on the national standards of the country of manufacture.
Inspection and maintenance intervals
Inspection
Inspection

Functional testing

External inspection

Internal inspection

Strength test

Operating instructions
Recommended intervals
Interval
During start-up
Annually
Every 2 years
Every 5 years or ≥ 500
loading cycles
Every 10 years
herose.com
Scope
Visual inspection

of the valve for damage;

of the valving marking for legibility;

for absence of damage to the

sealing
Leak-tightness

Union of the valve seat;

If existent, actuation of the lifting

device.
If present, test of lifting device including

visual inspection.
Function and tightness test including

visual inspection.
Replacement of all sealing elements by

the manufacturer including functional,
tightness test and visual inspection.
Replacement of all sealing elements by

the manufacturer including functional,
leak-tightness, pressure test and
inspection.
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