Pilot Operated Prop. DC Valve with VCD
®
Series D*1FP/FE Explosion Proof
Operation Manual
13
Parker Hannifin Corporation
MSG11-5715-718 D_1FP IECEX UK.indd 19.12.19
parts.
Pressure fluids
The following rules applies for the operation with
various pressure uids:
This information serves for orientation and
does not substitute user tests among the
particular operating conditions. Particularly
no liabiliy for media compatibility may be
derived out of it.
Mineral oil: usable without restriction.
HFC: choose the right seal option.
For operation with the following pressure uids
please consult Parker:
For detailed information concerning pressure
uids note VDMA-document 24317 as well
as DIN 51524 & 51502.
Special gaskets may be available depending on
the utilized uid.
In case of insecurity please consult Parker.
The pressure uid must have an ignition tempera-
ture of at least 50 K above the maximum surface
temperature of the valve (see ISO 80079-37 and
ISO/IEC 80079-20-1).
Electrical interfacing
Supply voltage
The supply voltage for the valve has to cover the
range of 22...30 V. Valve is de-energized below
19 V. The residual ripple may not exceed 5 % eff.
The applied power supply (not included in
the delivery) must comply to the relevant
regulations (DIN EN 61558) and must carry
a CE-mark. The operating voltage for the
valve must be free of inductive surges. Do
not exceed the max. value of 30 V! Higher
voltage can lead to failure of the valve.
Make sure that the power supply runs outside
the Ex area or inside an electrical cabinet
certied for use in the Ex zone.
The increased inrush current of the valve
should be considered when selecting the
power supply.
A stabilized power supply with overcurrent
limiting feature should not be used. Due to
the inrush current of the valve the current limit
circuit may respond prematurely and create
problems during energizing of the supply
voltage.
The operation of the valve is blocked if the
supply voltage polarity is interchanged.
Each valve requires a separate pre-fuse of 4
Amp semi time-lag. Failure to observe this
instruction may create irreparable damage
of valve respectively incorporated system
HFA oil-in-water emulsion
HFB water-in-oil emulsion
HFD unhydrous uids (Phosphor-Ester)
Electrical connection
The valve is connected electrically by the corre-
sponding supply cable using the intended cable
gland.
Earth connection
Connection of the valve to the equipotential
bonding system via the PE terminal connec-
tion.
The lengths of the ameproof joints are in
parts longer and the gaps of the ameproof
joints are in parts smaller than the values of
table 2 and 3 of IEC 60079-1:2014.
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