Inspection And Maintenance Intervals; Fault Table; Spare Parts - HEROSE 7111 Notice D'utilisation

7.2.1

Inspection and maintenance intervals

Description
Inspection
Functional testing
External inspection 
Internal inspection
Hy draulic testing
7.3

Fault table

Fault
Leak at the stem

 Leaking lateral
connections
 Body leaking
 Div erter plug v alve
cannot be switched
ov er
7.4

Spare parts

We require the f ollowing details f or your spare part orders:
 Article no. of the spare part package,
 desired deliv ery quantity,
 dispatch and deliv ery address,
 desired method of dispatch.
Operating instructions
Recommended interv als
Interval Scope
 During start-up



 Annually

Ev ery 2 y ears

 Ev ery 5 y ears

 Ev ery 10 y ears

Cause
Gland nut loose
Gland packing def ective
Fit on the stem damaged
Inadequate seals
Blind plug / bolted-on saf ety
v alv es loose
Lateral connections cracked
Discontinuity/gas cavity open
Gland nut ov ertightened
Thread seized
Lev er lock not remov ed
herose.com
Visual inspection
 of the div erter plug v alve for damage:
 of the v alving marking for legibility;
Leak-tightness
 at the gland packing;
 of the v alve seat;
 at the connections;
 at the plug screw;
Test of the opening and closing f unctions of the
div erter plug v alve.
Test the opening and closing f unctions of the
div erter plug v alve including a v isual inspection.
Check of f unction and leak-tightness including visual
check.
Replacement of all sealing elements, including a
f unction and leak test as well as a v isual inspection.
Replacement of all sealing elements, including a
f unction and leak test as well as an inspection.
Remedial action
 Retighten the gland nut
 Replace the div erter plug v alve
 Replace the div erter plug v alve
 Seal with suitable sealants
 Tighten to the specif ied torques

Replace the div erter plug v alve
 Replace the div erter plug v alve
 Loosen the gland nut
Tightness must still be ensured
 Replace the div erter plug v alve

Remov e lev er lock
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