Inspection And Maintenance Intervals; Fault Table - HEROSE T118 Notice D'utilisation

7.2.1

Inspection and maintenance intervals

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

Fault table

Fault
 Leak between bonnet
and lower part
Leak in the seating

7.4 Spare parts
Repairs to the T118 v alv e may be carried out only by HEROSE or by specialist workshops authorised by
HEROSE and monitored by the regulatory authorities, using only original spare parts.
7.5 Returns / complaints
Use the Serv ice f orm in case of returns/complaints.
Operating instructions
Recommended interv als
Interval
 During start-up
 annually
 Ev ery 2 y ears

Ev ery 5 y ears
 Ev ery 10 y ears
Cause
Bonnet loose
O-ring damaged
Foreign body between stem
and seat
Seating damaged
Stem sealing surf ace
damaged
Contact in case of service:
Herose.com › Serv ice › Product service › Complaints
E-mail: serv ice@herose.com
Fax: +49 4531 509 – 9285
herose.com
Scope
 Visual inspection
 of the v alve for damage;
 of the v alve marking for
legibility ;
 Leak-tightness
 between bonnet and lower
part;
 of the v alve seat;
 Test the opening and closing
f unctions of the valve.
 Test the opening and closing
f unctions of the valve including a
v isual inspection.
 Function and tightness test
including v isual check.
 Replacement of all sealing
elements, including a f unction
and tightness test as well as a
v isual inspection.
 Replacement of all sealing
elements, including a f unction,
leak and pressure test as well as
an inspection.
Remedial action
 Tighten bonnet
 Replace O-ring
 Remov e f oreign body / flush the
sy stem

Replace bonnet
 Replace bonnet
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