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Operation Manual
2. Safety Instructions
Please read the operation manual before instal-
lation, startup, service, repair or stocking! Paying
no attention may result in damaging the valve or
incorporated system parts.
Symbols
This manual uses symbols which have to be fol-
lowed accordingly:
Instructions with regard to the warranty
Instructions with regard to possible dam-
aging of the valve or linked system com-
ponents
Helpful additional instructions
Marking, Name Plates
Instructions applied on the valve, i.e. wiring dia-
grams and name plates, must be observed and
maintained legibly.
Work at the Valve
Workings in the area of installation, commissioning,
maintenance and repair of the valve may only be
allowed by qualified personnel. This means persons
which have, because of education, experience and
instruction, sufficient knowledge on relevant direc-
tives and approved technical rules.
3. Important Details
Intended Usage
This operation manual is valid for proportional direc-
tional control valves DFplus pilot operated series.
Any different or beyond it usage is deemed to be
as not intended. The manufacturer is not liable for
warranty claims resulting from this.
D_1FE 5715-688 UK CM 18.01.2019
Pilot Operated Proportional DC Valve
Series D*1FE
Common Instructions
We reserve the right for technical modifications of
the described product. Illustrations and drawings
within this manual are simplified representations.
Due to further development, improvement and
modification of the product the illustrations might
not match precisely with the described valve. The
technical specifications and dimensions are not
binding. No claim may resulting out of it. Copyrights
are reserved.
Liability
The manufacturer does not assume liability for
damage due to the following failures:
• incorrect mounting / installation
• improper handling
• lack of maintenance
• operation outside the specifications
Do not disassemble the valve! In case of
suspicion for a defect please contact Parker.
Storage
In case of temporary storage the valve must be
protected against contamination, atmospheric ex-
posure and mechanical damages. Each valve has
been factory tested with hydraulic oil, resulting in
protection of the core parts against corrosion. Yet
this protection is only ensured under the following
conditions:
Outdoor storage or within sea and tropical
climate will lead to corrosion and might dis-
able the valve!
Storage
Storage requirements
period
constant humidity < 60 % as well
12 months
as constant temperature < 25 °C
varying humidity as well as
6 months
varying temperature < 35 °C
7
Parker Hannifin Corporation
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