Festo DFPK-46-17-T32-V4 Manual

Festo Ikke kategoriseret DFPK-46-17-T32-V4

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Side 1/4
Translation of the original instructions
© 2021 all rights reserved to Festo SE & Co. KG
1 Applicable documents
NOTICE!
Technical data for the product can have different values in other documents. For
operation in an explosive atmosphere, the technical data in this document always
have priority.
All available documents for the product www.festo.com/sp.è
Identification mark
II 2G Ex h IIC T6…T4 Gb
II 2D Ex h IIIC T80°C…T120°C Db
0°C T£
a
+60°C £
Tab. 1
2 Safety
2.1 General safety instructions
The device can be used under the stated operating conditions in zones 1 and
2, explosive gas atmospheres, and in zones 21 and 22, explosive dust atmo
spheres.
Use the device in its original status without any unauthorised modifications.
All work must be carried out outside of potentially explosive areas.
Extraction of the operating medium outside the potentially explosive area.
Use approved accessories.
Only use media in accordance with the specifications. 9 Technical data.è
Media
When using saturated steam: take vapour pressure into account when
designing the valve
Drive
Do not open the drive (pressure in the drive or spring under tension).
Avoid mechanical stresses on the valve. Do not use the drive as a lever.
2.2 Intended use
The piston drive DFPK is intended for use with an angle seat valve VZXA... or a
cover kit VAVCF12SCC....
2.3 Training of qualified personnel
Work on the product should only be conducted by qualified personnel. The quali
fied personnel must be familiar with installation of process automation systems.
3 Further information
Accessories www.festo.com/catalogue.è
Spare parts www.festo.com/spareparts.è
4 Service
Contact your regional Festo contact person if you have technical questions
èwww.festo.com.
5 Product overview
5.1 Configuration
5.1.1 Product design
1
Position indicator
2
Pneumatic connection (2)
3
Drive/angle seat valve or cover kit
interface
4
Drive housing
5
Pneumatic connection (4)
Fig. 1 Product design
Position indicator
The pneumatic position indication shows the position of the actuator stem.
Indicator cylinder above Indicator cylinder below
Actuator stem retracted, valve opened Actuator stem extended, valve closed
Tab. 2 Position indicator
5.2 Function
The piston drive DFPK is a pneumatic drive actuated by compressed gas. The
DFPK can be used for the following applications:
valve drive in combination with angle seat valve VZXA...
valve block solution in combination with cover kit VAVCF12SCC...
The piston drive can be supplied as a doubleacting or singleacting drive. Single
acting drives have a spring system for opening and closing the connected valve in
case of pressure drop or pressure loss.
Control valves are required for switching the piston drive.
Flow over valve seat
Only suitable for gaseous media, because use of incompressible media
causes pressure surges in the piping.
Control function
Single-acting Double-acting
Closed by spring force or by
reduced spring force (normally
closed  NC)
Opened by spring force (nor
mally open NO)
Opening and closing by two
way pressurising with operating
medium (compressed air)
Tab. 3 Control function
8143604
DFPK
Piston drive
8143604
202009a
[8143606]
Operating instructions
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 3470
www.festo.com


Produkt Specifikationer

Mærke: Festo
Kategori: Ikke kategoriseret
Model: DFPK-46-17-T32-V4

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