Festo VZXF Series Instructions & Operating

VZXF-L-M22C-M
Angle seat valve
Instructions | Operating
8092242
2018-06b
[8092244]
Translation of the original instructions
1 About this document
This document describes the use of the above-mentioned product.
1.1 Further applicable documents
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 labelling on the product.
– Use the valve only in the flow direction indicated.
– Take into consideration the ambient conditions at the location of use.
Media
– Only use media in accordance with the specifications è 14 Technical data.
– Do not operate the product with chemically unstable gases, abrasive mediaor
solid materials.
– If water is used: up to approx. 1000 ppm of chloride content is permitted.
Avoid tensile stresses.
– If aggressive media are used: limit temperature of medium to 65 °C.
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 VZXF angle seat valve is intended to control gaseous or liquid media in rigid
piping systems.
– To control liquid media, use only the product variant VZXF-L-M22C-M-B-...
(closing against the direction of medium flow).
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 è www.festo.com/catalogue.
– Spare parts è www.festo.com/spareparts.
4 Service
Contact your regional Festo contact person if you have technical questions
è www.festo.com.
5
5.1
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
+49 711 347-0
www.festo.com
8092242
1 Position indicator
2 Actuator
3 Pipe connection with female
thread; feed or forwarding (corres-
ponding to flow direction)
Fig. 1 Product design
5.2
The following section explains selected product characteristics that are necessary
to understand the instruction manual. Description of the complete type code
è www.festo.com/catalogue.
Characteristic
Type
Valve type
Valve function
Reset method
Flow direction
Cable connection
Nominal width
Temperature range of
medium
Housing material
Actuator housing material
Stem seal material
Actuator size
Medium pressure
PWIS content
Tab. 1 Description of key features
5.3
The angle seat valve VZXF-L-M22C-M-.... is an externally controlled 2/2-way valve.
At rest, the valve is closed by spring force (normally closed - NC). If the actuator is
pressurised with operating pressure, it raises the control piston and simultan-
eously the valve disc. The valve opens.
The valve seat is slanted around 45° toward the media flow.
The supply of the operating medium is controlled by an external valve that must
be additionally integrated into the supply cable for the actuator.
12
Fig. 2 Circuit symbol
Product overview
Design
Product variants and type code
Value Description
VZXF Angle seat valve, externally controlled
L In-line valve
M22C 2/2-way valve, normally closed
M Mechanical spring
A Over valve seat, for gaseous media
B Under valve seat, for gaseous and liquid media
G12 ... G2 Thread G½" ... G2"
N12 ... N2 Thread NPT½" ... NPT2"
120 ... 450 12 mm ... 45 mm
– z10 ... +80 °C (standard)
M1 z40 ... +200 °C
H3 Red brass
V4 Stainless steel
AL, AN, B1, Aluminium; nickel-plated aluminium; brass; nickel-
B2, V4 plated brass; stainless steel
–, T, V Standard (NBR), PTFE, FPM
50, 80 50 mm, 80 mm
3 ... 40 0 ... 3 bar, ... , 0 ... 40 bar
V –0.9 ... 0 bar
–, C Standard, PWIS-free
Function
2
1
4 Arrow for direction of flow
5 Operating medium port