HEROSE 01322 Instrucciones De Servicio página 29

Operating instructions
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 valve are given
in the table below and are based on the national standards of the country of manufacture.
Inspection and maintenance intervals
Description
Inspection
Functional testing
External inspection
Internal inspection
Strength test
Recommended intervals
Interval
During start-up
Inspection and maintenance in ac-
cordance with the respective legal
regulations.
In Germany, for example,
according to the Operational Safety
Ordinance
Inspection and maintenance in ac-
cordance with the respective legal
regulations.
In Germany, for example,
according to the Operational Safety
Ordinance
Every 5 years or ≥ 500 loading cycles
Every 10 years
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Scope
 Visual inspection
 of the valve for damage;
 of the marking for legibility;
 Installation position;
 Leak-tightness
 at the packing gland;
 between bonnet and body;
 of the valve seat;
 Test the opening and closing func-
tions of the valve.
 Test the opening and closing
functions of the valve including
a visual inspection.
 Function and tightness test
including visual inspection.
 Replacement of all sealing ele-
ments, including a function and
tightness test as well as a visual
inspection.
 Replacement of all sealing ele-
ments, including a function, leak
and pressure test as well as an
inspection.
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