Festo VZQA-C-M22C-15-TT-V2V4S1 Manual

Festo Ikke kategoriseret VZQA-C-M22C-15-TT-V2V4S1

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Side 1/3
Translation of the original instructions
© 2020 all rights reserved to Festo SE & Co. KG
1 About this document
This document describes the use of the above-mentioned product.
1.1 Applicable Documents
All available documents for the product www.festo.com/sp.è
2 Safety
2.1 General safety instructions
– Only use the product if it is in perfect technical condition.
– Comply with all applicable national and international instructions.
– Take into consideration the ambient conditions at the location of use.
– Observe the specifications on the product labelling.
Media
– Use only media in accordance with the specifications 13 Technical data.è
– Use only media to which the materials used for the seal cartridge and cover
are resistant. For evaluation of the media resistance www.festo.com.è
– Use only media that will not cause dangerous reactions if mixed.
– Due to its design, the valve is not generally suitable for solids (granulates).
Before using solids, the customer should determine that they are suitable.
Piping
Depending on the medium and the operating conditions, pressure peaks that
exceed the permissible pressure range may develop in the system.
The valve may open accidentally, and leakage of medium may occur.
– If necessary, include a pressure-relief valve in the media line to comply with
the limit values.
The separation between the media spaces is no longer guaranteed if wear causes
the seal cartridge (tubing) to leak.
– Flow medium may exit at the exhaust port. Prevent possible hazards to per-
sons or material damage with suitable design measures.
– With ducted exhaust air, the flow medium can exit away from the valve. Pre-
vent possible hazards to persons or material damage with suitable design
measures.
If the seal cartridge (shut-off element) leaks, the exhaust port is plugged, or the
ducted exhaust air is plugged, or there is exhaust air in an equalising volume, the
flow medium may enter the operating medium.
– Use an appropriate check valve to protect the pilot circuit against ingress of
the flow medium.
– Check exhaust regularly.
Very high temperatures may damage the seal cartridge.
– Do not weld piping in close proximity to the valve.
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
Valves in the series VZQA-C-M22C-... are used to control gaseous, liquid and
paste-like media with low to medium switching frequency.
2.3 Training of skilled personnel
Installation, commissioning, maintenance and disassembly should only be con-
ducted by qualified personnel.
3 Service
Contact your regional Festo contact person if you have technical questions
èwww.festo.com.
4 Product overview
4.1 Configuration
4.1.1 Product design
1
Housing cover
2
Housing
3
Threaded connection or clamp fer-
rule for connecting media-carrying
piping
4
Plug screw on exhaust port
5
Operating medium port
Fig. 1 Product design
Inside the valve are compression springs, pistons and a return piece as well as a
replaceable seal cartridge with stamps and a tubular shut-off element.
4.1.2 Product variants and type code
Characteristic Value Description
Type VZQA Pinch valve, pneumatically actuated
Product version C Easy-to-clean design (Clean design)
Valve function M22C 2/2-way valves, normally closed (normally closed)
Nominal diameter DN 6, 15 6mm, 15mm
Fitting connection 1 G, T, S1, S5 G female thread, NPT female thread, clamp ferrule
Fitting connection 2 G, T, S1, S5 G female thread, NPT female thread, clamp ferrule
Housing material V2, AL Stainless steel, aluminium
Housing cover material V4, AL Stainless steel, aluminium
I EPDMShut-off element material
S1 Silicone
2 0…0.2MPa
4 0…0.4MPa
Pressure range of media
6 0…0.6MPa
I End positionType of sensing
– No sensing
Tab. 1 Description of key features
4.2 Function
The pinch valve is a pneumatically actuated 2/2-way valve. The valve is closed by
spring force in the normal position (normally closed – NC).
Fig. 2 Switching symbol
If the valve is under operating pressure, the pressure moves the piston and the
return piece against the spring force. The stamps are released from load and can
now be freely moved outward. They are shifted outward by the elasticity of the
shut-off element supported by the pressure of the medium. The flow medium can
flow through the valve. After the operating pressure is removed, the spring moves
the return piece against the stamps and returns them to the initial position. The
valve closes.
8138867
VZQA-C-M22C-...
Pinch valve
8138867
2020-07e
[8138869]
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: VZQA-C-M22C-15-TT-V2V4S1

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