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D633K, D634K and D635K Series
1
Safety Instructions
1.1
Warnings and symbols
Refers to special orders and prohibitions to pre-
vent damage
Refers to special orders and prohibitions to pre-
vent injury or property damage
1.2
Correct application
1.2.1
The valves series D633K, D634K and D635K are electrical
equipment for hazardous areas, type of protection "de"
(d Flameproof enclosure to IEC 60079-1, e Increased safety
to IEC60079-7).
Identification D633K/D635K Series:
Approval:
Identification:
Temperature range:
alternative allowed
Identification:
Temperature range:
Identification D634K Series:
Approval:
Identification:
Temperature range:
1.2.2
The valves are proportional valves intended for directional-,
velocity-, pressure- and force control in hydraulic control
systems that operate with mineral oil based fluids. Oth-
ers on request.
Using the valves for purposes other than those mentioned
above is considered contrary to the intended use. The user
bears entirely the risk of such misuse.
Correct application involves also observing the operating
instruction and complying with the inspection and main-
tenance directives.
1.3
Organizational measures
1.3.1
We recommend to include this operating instruction into
the maintenance plan of the machine / plant.
1.3.2
In addition to the operating instruction, observe also all
other generally applicable legal and other mandatory regu-
lations relevant to accident prevention and environmental
protection. Instruct the operator accordingly.
1.3.3
All safety and danger prevention instructions of the ma-
chine/plant must meet the requirements of EN 982 and
IEC 60079-0.
1.4
Selection and qualification of personnel
Service work carried out by the user on explosion protec-
tion valves is prohibited, as intervention by third parties
renders the explosion protection permit null and void.
© 2003, 2007, 2009 Moog GmbH
BVS 07 ATEX E 006 X,
II 2G Ex de II B+H
T4
2
Ambient -20 to 60 °C
Fluid
-20 to 60 °C
II 2G Ex de II B+H
T3
2
Ambient -20 to 60 °C
Fluid
-20 to 80 °C
BVS 07 ATEX E 006 X,
II 2G Ex de II B+H
T3
2
Ambient -20 to 60 °C
Fluid
-20 to 70 °C
Operating Instructions D633K, D634K and D635K (CA49304-001; Version 6.0, 12/09)
1.5
Safety instructions for specific operational phases
1.5.1
Take the necessary precautions to ensure that the valve is
used only when in a safe and reliable state.
1.5.2
Check the valve at least once per working shift for obvious
damage and defects (i.e. leakage or damaged cables). Re-
port any changes to the responsible group / person imme-
diately. If necessary, stop the machine immediately and
secure it.
1.5.3
Before working on the valves or the machine, shut down
and switch off the machine without fail and de-energize
and depressurize the machine.
1.5.4
In the event of malfunctions, stop the machine / plant im-
mediately and secure it. Have any defects rectified imme-
diately.
1.5.5
If the machine / plant is completely shut down for mainte-
nance and repair work at the valve, it must be secured
against inadvertent start up by:
Locking the principal control elements and
0123
removing the key.
attaching a warning sign to the main switch.
1.5.6
Before removing the valve depressurize all system sections
to be opened, pressure lines and accumulators of the hy-
draulic system in accordance with the specific instructions
for the plant.
1.6
Safety instructions for the operation of hydraulic
plants
0123
1.6.1
Work on electrohydraulic equipment must be carried out
only by personnel having special knowledge and experi-
ence in electrohydraulic controls.
1.6.2
Check all lines, hoses and fittings of the plant regularly for
leaks and obvious damage. Repair damage immediately.
Splashed oil may cause injury and fire.
1.6.3
The strong magnetic fields of the permanent magnet lin-
ear force motor can have a disruptive effect on sensitive
devices, such as e.g., cardiac pacemakers. This may result
in serious personal injuries and serious damage to prop-
erty. Observe the relevant safe distances appropriate for
the device.
1.6.4
Falling objects, such as e.g., valves, tools or accessories,
may result in personal injuries and damage to property.
Wear suitable safety equipment, such as e.g., safety shoes
or helmet.
1.6.5
Valves and hydraulic lines can become very hot during op-
eration. Contact may result in burns.
Wear suitable safety equipment, such as e.g., work gloves.
1.6.6
Depending on the application, significant levels of noise
may be generated when the valves are operated.
If necessary, the manufacturer and operator of the ma-
chine must take appropriate sound insulation measures or
stipulate that suitable safety equipment, e.g., ear protec-
tion, be worn.
1.6.7
When handling oil, grease and other chemical substances,
observe safety regulations valid for each product and wear
suitable safety equipment, such as e.g., work gloves.
1.6.8
The connectors, mating connectors and connection cables
may be used exclusively for the connection of the valve.
Misuse, such as e.g., use as tread or transport fixture, can
cause damage and thus may result in personal injuries as
well as further damage to property.
3
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