Clayton Steam Generator model EO-100-1
PAGE 69 / 70
Instruction Manual, doc.nr.: MAN18206 Rev A PSC
11.4.5
INCORRECT OR UNEXPECTED USE.
When due to any external or internal process condition the safe operation of the pressure equipment is
endangered, suitable measures will be taken and the equipment may need to be put out of operation.
When in such cases the maximum allowable pressure is exceeded by more than 10 % or the maximum
allowable temperature has been exceeded considerably, the equipment and its control and safety devices
shall be subjected to a special examination before any further operation.
11.5
SUPERVISION AND MAINTENANCE.
11.5.1
GENERAL INSTRUCTIONS.
All local national stipulations regarding supervision and periodic inspection and testing shall be observed.
11.5.2
CLOSING AND OPENING THE PRESSURE EQUIPMENT.
All openings shall be suitably closed. Threads and flange faces shall be clean and free of defects.
Only new and suitable gaskets may be used and the appropriate bolting shall be diametrically and gradually
tightened with a calibrated torque wrench.
11.6
SUPERVISION AND INSPECTION.
11.6.1
INSPECTION BY AUTHORISED OWNER-USERS.
When allowed by local national Regulations, inspections can be done by specialized companies or by the
supplier of the equipment.
The Owner-User inspector shall not perform inspections on equipment for which he has operation or
maintenance responsibilities.
11.6.2
IN SERVICE INSPECTION PROGRAM.
The Owner-User Quality Control System shall include provisions to ensure that inspections are carried out in
accordance with written procedures. These procedures must delineate all sources and references of pertinent
information to be furnished by the Inspector.
These procedures shall highlight the degree of inspection required for the types of vessels involved.
As a minimum these procedures shall include provisions for reporting the following:
•
Internal or external inspection.
•
Location and thickness of sample areas.
•
Location and extent of corrosion, bulging, blistering or cracks in shells, heads, welding seams, and/or
weld heat affected zones.
•
Type and extent of non-destructive examination employed.
•
Setting and condition of safety valve or safety relief valve.
11.6.3
PERIODIC INSPECTION OF THE PRESSURE EQUIPMENT.
The type and frequency of periodic inspection is prescribed by local national Regulations.
11.7
MAINTENANCE.
11.7.1
MAINTENANCE
DANGER !
Dismantling or working on any component of a system under pressure can cause serious injury.
Before opening or dismantling any part of the pressure equipment, disconnect electric power and
lock out at main panel, then completely vent internal pressure to atmosphere and drain where
needed
(e.g. where there are no block valves installed or allowed).
Check surface temperatures
