Festo VZWP-L-M22C Series User manual

Solenoid valve
VZWP-L-M22C
Festo AG & Co. KG
Postfach
73726 Esslingen
Deutschland
[phone]
www.festo.com
Operating instructions 8065870
1611a
[8065872]
Original: de
Solenoid valve VZWP-L-M22C English....................................
1 Design
3
7
aJ
1aA
6
2
5
4
8
9
1Port 1: Input
2Valve body
3Electrical plug connector with seal
and mounting screw
4Knurled nut
5O-ring
6Solenoid coil
7O-ring
8Armature guiding tube
9Port 2: Output
aJ Arrow for flow direction
aA Thread for mounting bracket
Fig. 1
2 Function
The solenoid valve VZWP–L–M22C is a servo controlled
2/2-way valve with solenoid coil.
The solenoid valve VZWP–L–M22C is closed when de-ener
gised (Normally Closed - NC). When power is supplied, the
differential pressure is relieved from the secondary side of
the piston via the servo hole. The effective differential pres
sure lifts the piston away from the valve seat. Fig. 2
The pilot function of the valve actuator can be used to control high pressures with
large nominal diameters by means of small solenoid coils.
The minimum differential pressure must always be present to ensure smooth func
tioning of the servo control (èTechnical data).
3 Application
Solenoid valves of the series VZWP–L–M22C are intended to control the flow of
gaseous and fluid media in rigid piping systems.
 The product may only be used in its original state without unauthorised modific
ations. Only the mounting and commissioning activities described in these oper
ating instructions are permissible. Do not open the valve body or dismantle the
armature guiding tube.
 Do not use the product in closed circuits.
 Do not use the VZWP solenoid valve as a safety component.
 Use the product only in perfect technical condition.
 Only use media in accordance with specification. Before using other media,
please contact our customer support.
 Operation with chemically unstable gases, abrasive media and solids is imper
missible.
 Use the solenoid valve only in the marked flow direction.
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 re
turned 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 of the legal requirements for the handling of hazardous sub
stances and the transport of dangerous goods.
4 Product variants
Features Type code Description
Type VZWP Solenoid valve, servo controlled
Valve type LIn-line valve
Valve function M22C 2/2-way valve, normally closed (NC)
Connection to valves and fittings G14 to G1 Pipe thread per DIN ISO 228
N14 to N1 NPT pipe thread per ANSI B 1.20.1
Nominal size (DN) 130
250
13 mm
25 mm
Sealing material –
V
NBR
FPM
Nominal voltage 1
2A
3A
24 V DC
110 V AC (50-60 Hz)
230 V AC (50-60 Hz)
Electrical connection P4 Plug socket, 3-pin
Operating pressure 40 Max. 40 bar
Fig. 3
5 Transport and storage
 When shipping used products: Comply with all legal requirements for handling
hazardous substances and transporting dangerous goods.
For return to Festo èKapitel 3.
 Store the product in a cool, dry, UV- and corrosion-protected environment.
6 Installation
Note
 Installation only by qualified personnel.
 Avoid contamination. In this way you will prevent small holes from becoming
blocked (e.g. servo hole) and restriction or blockage of the function.
 Avoid mechanical stresses especially on the solenoid coil and the armature
guiding tube.
 Ensure sufficient thermal circulation at the installation location.
1. Before installation, check the system requirements:
– The tubing system is unpressurised and does not hold any medium.
– The pipelines are clean.
– The ends of the pipelines are mounted.
– The power supply is switched off.
2. Put the solenoid valve in its mounting position. Please note the flow direction.
The permissible flow direction is marked by an arrow on the valve body.
3. Screw the ends of the pipelines to the valve ports. Observe the permissible
tightening torques.
4. Establish the electrical connection. Use only the specified plug type (èTech
nical data).
– Connect the electrical cable to the plug connector.
– Attach the seal to the electrical contacts.
– Plug in the plug connector and secure it in place with the mounting screw
(torque 0.3...0.5 Nm).
5. Connect the power supply.

7 Commissioning
Note
 Commissioning only by qualified personnel.
 When incompressible media (e.g. neutral water) are used, switching the valve
causes pressure surges in the tubing system. Prior to commissioning, check
the compatibility of the devices in the system to avoid damaging them. If
necessary, adjust your application parameters.
 Observe the information on the rating plate.
 Start up the solenoid valve only when it is completely assembled and installed.
 Check the connection points for leaks.
 Prior to commissioning, check for compliance with the operating conditions and
the permissible limit values (èTechnical data).
8 Operation
 Observe the operating conditions.
 Always observe the permissible limit values.
Warning
Danger of burning on hot surfaces.
The surface temperature of the solenoid valve can exceed 75 °C.
 Do not touch the solenoid valve.
9 Dismantling
Warning
Danger of injury due to hot media under pressure.
The media in the piping system and the solenoid valve can be hot and can be
under pressure.
 Allow the solenoid valve and pipelines to cool and depressurise them.
Note
The solenoid valve may be dismantled only by qualified personnel.
1. Depressurise the pipeline.
2. Switch off the voltage.
3. Completely drain the pipeline and valve.
– Allow the solenoid valve and pipeline to cool off.
– Make sure that no one is in front of the outlet opening.
– Catch escaping media in a suitable container.
4. Remove the solenoid valve from the pipeline (unplug the electrical plug con
nector, detach the mounting bracket and unscrew the fittings).
10 Changing the solenoid coil
The solenoid coil can be changed for repairs.
Warning
Danger of injury from hot surfaces.
The surface temperature of the solenoid valve can exceed 75 °C.
 Let the solenoid valve cool off.
Dismantling:
1. Switch off the voltage.
2. Disconnect the electrical plug connector.
3. Undo the knurled nut and remove the solenoid coil from the armature guiding
tube.
Mounting:
1. Push the O-ring and solenoid coil over the armature guiding tube.
2. Secure the solenoid coil with the O-ring and knurled nut.
– Torque for tightening the knurled nut: finger-tight (about 1...1.5 Nm).
11 Service and maintenance
 Check the solenoid valve for leakage at least every 6 months.
 Check the functioning of the solenoid valve at least every 6 months.
 Regularly clean the outside of the valve with a soft cloth. The permissible
cleaning agent is soap suds.
12 Eliminating malfunctions
Malfunction Possible cause Remedy
Solenoid valve
not closing
Solenoid valve is defective.  Replace the solenoid valve.
Flow direction is incorrect  Install the solenoid valve in accord
ance with the flow arrow
Nominal voltage is still applied  Check electrical connection.
Differential pressure too low  Make sure the specified minimum
differential pressure is supplied.
Solenoid valve
does not open
Solenoid coil or solenoid valve is
defective.
 Replace the solenoid coil.
 Replace the solenoid valve.
Nominal voltage interrupted or
not sufficient
 Check voltage.
Fig. 4
13 Technical data
General VZWP-L-M22C-...
Valve function 2/2-way, closed, monostable
Design Pilotactuated piston poppet valve
Actuation type Electrical
Mounting position Coil preferably on top
Sealing principle Soft
Medium Compressed air in accordance with ISO85731:2010 [7:4:4]
Inert gases, Neutral fluids1)
Direction of flow Non-reversible
Viscosity [mm2/s] š22
Grade of filtration [μm] 40
Temperature of medium [°C] –10...+80
Ambient temperature [°C] –10...+35
Protection class IP65 as per DIN EN 60529
Degree of contamination 3 as per IEC 60664-1
Attachment type In-line installation
Materials information, housing Cast brass
Materials information for seals NBR, FPM
1) Other media on request
Fig. 5
Electrical data VZWP-...1-... VZWP-...2A-... VZWP-...3A-...
Nominal voltage
– DC voltage
– AC voltage (50...60 Hz)
[V DC]
[V AC]
24 (±10%)
–
–
110 (±10%)
–
230 (±10%)
Rated output [W]
[VA]
6.8 –
7.5
–
10.5
Surge resistance [kV] – 2.5 4.0
Duty cycle 100% (continuous duty)
Electrical connection Device plug per DIN EN 175301-803, format A
Connecting cable
– Cable cross-section [mm2] 0.75…1.5
– Cable diameter [mm] 5…9
– Cable entry thread M20x1.5
Fig. 6
Port size [˝] ¼y½¾1
Pipe thread per DIN ISO 228
Pipe thread per ANSI B 1.20.1
G¼
N¼
GÅ
NÅ
G½
N½
G¾
N¾
G1
N1
Differential pressure [bar] 0.5
Nominal size DN [mm] 13 25
Standard nominal flow rate [l/min] 1600 2100 2650 8750 12250
Flow factor Kv[m3/h] 1.5 2.0 2.5 8.2 11.5
Operating pressure [bar] 0,5…40
Overload pressure [bar] 45
Switching times for gaseous media1)
–On [ms] 100 130
– Off [ms] 250 300
Tightening torques
– Pipe connection [Nm] 35 60 105 200 350
– Mounting of solenoid coil [Nm] 2
Weight [g] 600 575 550 1500 1400
1) Depending on the viscosity, longer switching times with fluid media
Fig. 7