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Idiomas disponibles
Idiomas disponibles
7.4
Fault table
Fault
Leak at the stem
Leak between bonnet
and body
Leak in the seating
Body leaking
Valve does not open /
close
7.5
Spare parts
We require the following details for your spare part orders:
article no. of the spare part package,
desired delivery quantity,
dispatch and delivery address,
desired method of dispatch.
7.6
Returns / complaints
Use the Service form in case of returns/complaints.
Operating instructions
Cause
Gland nut loose
Packing gland defective
Fit on the stem damaged
Bonnet loose
Seal damaged
Foreign body between cone
and seating
Seating damaged
Cone seal damaged
Discontinuity/gas cavity open
Gland nut overtightened
Thread seized
Actuator not working
Contact in case of service:
Herose.com › Service › Product service › Complaints
E-mail: service@herose.com
Fax: +49 4531 509 – 9285
herose.com
Remedy
Retighten the gland nut
Replace the packing gland
Replace the stem
Tighten the bolts to the specified
torque
Replace seal
Remove foreign body / flush the
system
Replace the body
Replace the cone
Replace the body
Loosen the gland nut
Tightness must still be ensured
Replace bonnet
Check supply of energy to the
actuator
Check limit switches
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