Maintenance And Service; Fault Table - HEROSE 08411 Instrucciones De Servicio

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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

Cleaning

Maintenance

External inspection

Internal inspection

Strength test

7.3

Fault table

Fault
Low flow rate

Leak between cover

and body
Body leaking

Operating instructions
Recommended intervals
Interval
During start-up
According to level of soiling
Annually
Every 2 years
Every 5 years or ≥ 500 loading
cycles
Every 10 years
Cause
Strainer dirty
Blockage in the pipework
system
Cover loose
Seal damaged
Discontinuity/gas cavity open
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Scope
Visual inspection

of the valve for damage;

of the valving marking for

legibility;
Installation position;

Leak-tightness

Between cover and body.

Cleaning of filter element and

cover
Cleaning of all individual parts

including visual inspection.
Maintenance and tightness test;

Replacement of all sealing and

filter elements, including
maintenance and tightness test.
Replacement of all sealing and

filter elements, including cleaning
of all individual parts, leak and
pressure test, and inspection.
Remedy
Clean / replace screen

Check pipework system

Retighten bolts

Replace seal

Replace the body

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