6
4.6.
Safety lnstructions for Maintenance, Inspection and Installation work
4.6.1.
General
On an actuated valve the operating instructions of the valve must be strictly followed as well as those of the operating instructions of the actuators,
the limit switch or automation boxes.
The user is responsible for ensuring that all maintenance, inspection and installation work is carried out by authorized, adequately qualified staff who
are thoroughly familiar with thisinstruction manual.
Any work on a valve may only be performed when the valve is un-pressurized and has cooled down to 60
°
C or has warmed up to 0
°
C .
Any work on actuated valves may only be done after that the actuator has been disconnected from its energy supply.
The procedure described in the operating instructions to shut down the actuator must be observed.Valves in contact with hazardous media must be
decontaminated. Immediately following completion of the work, all safety relevant and protective devices must be reinstalled and/or re-enabled.
Prior to recommissioning, refer to the points listed in section 8 Commissioning.
4.6.2.
End of line installation
Use as end of line and downstream dismantling at ambient temperature of standard range:
Valves Type 1 (annular shape): use as end of line and downstream dismantling are not authorized.
Valves Type 4 (lug) and Type 7 (flanged): use as end of line and downstream dismantling are authorized, but for DANAÏS 150, subject to cares
explained in section 7.1.
Gaz or liquids *
Liquids
Valves
Hazardous
(Group 1)
Non hazardous
(Group 2)
Hazardous
(Group 1)
Non hazardous
(Group 2)
class 150 **
All sizes:
not authorized
All sizes:
PS = 15 bar max.
All sizes:
PS = 15 bar max.
All sizes:
PS = 15 bar max.
DANAÏS MT II
PN 25
All sizes:
not authorized
All sizes:
PS = 19 bar max.
All sizes:
PS = 19 bar max.
All sizes:
PS = 19 bar max.
class 300
All sizes:
not authorized
All sizes:
PS = 38 bar max.
All sizes:
PS = 38 bar max.
All sizes :
PS = 38 bar max.
DANAÏS 150
class 150 **
All sizes:
All sizes:
All sizes:
All sizes:
DANAÏS 150
PN 25 **
All sizes:
not authorized
All sizes:
PS = 15 bar max.
All sizes:
PS = 15 bar max.
All sizes:
PS = 15 bar max.
DANAÏS TBT II
flanged
class 150 **
All sizes:
not authorized
All sizes:
PS = 15 bar max.
All sizes:
PS = 15 bar max.
All sizes:
PS = 15 bar max.
DANAÏS TBT II
buttweld
class 150 **
All sizes:
not authorized
non applicable
non applicable
All sizes:
PS = 10 bar max.
PS: Differential pressure
* Liquids whose vapour pressure at the maximum allowable temperature is greater than 0.5 bar above normal atmospheric pressure
(1013mbar)
** When shaft material is 316L,
PS is reduced to 10 bar max.
NB: A valve fitted at the end of a pipe with a blind flange downstream is not to be considered as an end of pipe service.
4.7. Unauthorized Modification and Manufacturing of Spare Parts
The equipment shall not be altered or modified in any way prior to consultation with the manufacturer. Genuine spare parts and accessories
authorized by the manufacturer will ensure operational safety. The manufacturer cannot be held responsible for damage resulting from the use
of non-genuine parts or accessories.
4.8. Inadmissible Modes of Operation
Operational safety and reliability of the valve supplied is only warranted for its designated use as defined in section 3 ”General”
of the operating instructions.The limits stated in the technical documentation must not be exceeded under any circumstances.
5.
Transport and Interim Storage
5.1. Transport
The valves in the as-supplied condition are ready for operation.
ATTENTION For transport and storage, the valves must always be maintained in the semi--closed position and be packed in cardboard,
crate or case with suitable protection (dessicant, thermowelded barrier).
ATTENTION To prevent damage, do not hang the valve by its handle or actuator.After delivery or prior to installation, the valve should be
checked for damage during transit.
5.2. Interim Storage
The valves must be stored in such a way that correct operation is assured even after prolonged storage.
This comprises: -- Storing at 5
°
from the closed position
-- Suitable measures against contamination, frost and corrosion (e.g. by using thermowelded plastic bags with
dessicant, protection caps and plugs onto threaded holes).
