Translation of the original instructions
1
About this document
This document describes the use of the above-mentioned product. Certain
aspects of use in connection with a hydraulic unit or handwheel control are
described in other documents and must be observed.
1.1
Further applicable documents
User documentation
Name, type
Table of contents
Operating instructions for DFPD-HD-...-HW
Design, commissioning and operation of the
hydraulic unit
Operating instructions for DFPD-HD-...-MW
Design, commissioning and operation of the
handwheel control
Tab. 1
All available documents for the product
è
www.festo.com/pk.
2
Safety
2.1
General safety instructions
–
Only use the product in original status without unauthorised modifications.
–
Only use the product if it is in perfect technical condition.
–
Observe the specifications on the product labelling.
–
Observe labelling on the product.
–
Prior to mounting, installation and maintenance work: Switch off compressed
air supply and secure it from being switched back on.
–
Exhaust drive prior to assembly, installation and dismounting.
2.1.1
Operating medium
–
Only use compressed air in accordance with the specifications
è
–
Use only unlubricated compressed air under normal conditions. Once the
product has been used with lubricated compressed air, it must continue to be
operated with lubricated compressed air only.
2.1.2
Return to Festo
Hazardous substances can endanger the health and safety of personnel and
cause damage to the environment. To prevent hazards, the product should only
be returned upon explicit request by Festo.
–
Consult your regional Festo contact.
–
Complete the declaration of contamination and attach it to the outside of the
packaging.
–
Comply with all legal requirements for the handling of hazardous substances
and the transport of dangerous goods.
2.2
Intended use
The semi-rotary drive DFPD-HR is intended to actuate process valves, such as ball
valves and butterfly valves, with a rotation angle from 0° (valve closed) to 90°.
The semi-rotary drive is suitable for control of media-flow process valves in fluid
engineering systems.
NOTICE!
The operating torque of the drive must not be greater than the maximum permiss-
ible torque listed in ISO 5211 in relation to the size of the mounting flange and of
the coupling.
2.3
Training of skilled personnel
Installation, commissioning, maintenance and disassembly should only be con-
ducted by qualified personnel.
3
Further information
–
Accessories
è
www.festo.com/catalogue.
–
Documents and literature
è
4
Service
Contact your regional Festo contact person if you have technical questions
è
5
Product overview
5.1
Design
The product labelling is located on the gear unit.
1 8 mounting threads according to
ISO 5211
2 Keyway
3 Pneumatic cylinder
4 4 mounting threads – e.g. for
sensor box
5 Transmission shaft (internal) –
delivery "Valve open"
6 Adjustable stop for end position
adjustment
7 Transport lug
8 Gear unit
9 Mechanical position indication
10 Air connection (4)
11 Air connection (2)
Fig. 1
5.2
Function
Fig. 2
The DFPD-HD-...-RD is a double-acting semi-rotary drive. The piston is moved by
pressurizing and exhausting the pneumatic cylinder.
The linear motion of the piston is transformed using a Scotch yoke system into a
swivel motion of the transmission shaft. The connected process valve records the
reaction torque of the semi-rotary drive.
Fig. 3
6
Transport and storage
WARNING!
Danger of crushing.
Body parts can be crushed if the product falls.
•
Use appropriate load handling equipment.
•
Lift the semi-rotary drive using the transport lugs.
•
Before transporting: detach the semi-rotary drive from the process valve.
NOTICE!
For variants with a hydraulic unit (DFPD-HD-...-HW): environmental damage due to
escaping oil.
•
Store the product horizontally and avoid inclines.
8087991
Semi-rotary drive
DFPD-HD-...-RD
8087991
2018-03a
[8087993]
Instructions | Operating
Festo AG & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
