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Solenoid operated spool valve
Solenoid operated spool valve Solenoid operated spool valve

TYPE CODE ACTUATION MANUAL OVERRIDE
W W M F A04 - - / - # Actuation Switching solenoid, wet pin push type, ◆ Integrated (–) Actuation pin integrated in the armature tube.
Spool valve, soft switching pressure tight Actuation by pressing the pin
Execution V.E37 / 19 x 50 (Data sheet 1.1-168) ◆ Push-button (HF1) Integrated in the knurled nut. Actuation by
Slip-on coil, Medium pressing the push-button
N.S35 / 19 x 50 (Data sheet 1.1-175)
Flange construction Connection Connector socket EN 175301 – 803 ◆ Spindle (HS1) Integrated in the knurled nut. Actuation by turning
the spindle (continuously variable valve actuation)
Connector socket AMP Junior-Timer
Mounting interface acc. to Wandfluh standard, NG4-Mini Attention! The actuation of the manual override is possible up to a
Connector Deutsch DT04 – 2P
tank pressure of:
Designation of symbols acc. to table 40 bar Integrated (–)
40 bar Push-button (HF1)
Nominal voltage U 12 VDC G12 115 VAC R115 100 bar Spindle (HS1)
N
24 VDC G24 230 VAC R230
without coil X5
Slip-on coil Metal housing, round with one-sided collar V (only G12 and G24)
Metal housing, square with one-sided collar N
PERFORMANCE SPECIFICATIONS
Connection execution Connector socket EN 175301-803 / ISO 4400 D 2
Connector socket AMP Junior-Timer J (only for U ≤ 75 VDC) Oil viscosity u = 30 mm /s
N
Connector Deutsch DT04 - 2P G (only for U ≤ 75 VDC) p = f (Q) Performance limits Q = f (Q) Leakage volume flow characteristics
N
L
Measured with nominal voltage -10 % per control edge
Sealing material NBR
FKM (Viton) D1 p [bar] Q [cm /min]
3
350 K1035 AB1 / AB2 60 K1037
ACB
Manual override Integrated 300 ADB 50
Push-button HF1 250
Spindle HS1 200 40
150 30
Orifice diameter Ø 0.3 mm (Standard) 100 20
50 10
Design index (subject to change) 0 0
1.4-13 0 5 10 15 20 Q [l/min] 0 50 100 150 200 p [bar]

Δp = f (Q) Pressure drop volume flow characteristics Volume flow direction
ELECTRICAL SPECIFICATIONS COMMISSIONING
p [bar] Symbol P - A P - B P - T A - T B - T
Protection class Connection execution D: IP65 Attention! When commissioning, the valve must be vented under 20 K1036 AB1 / AB2 3 3 - 3 3
Connection execution J: IP66 pressure (max. two rotations of screw E). 3 ACB / AC1 / CB2 2 2 - 2 2
Connection execution G: IP67 and IP69K 15 2
Relative duty factor 100 % DF 10 1 ADB / AD1 / DB2 3 3 - 1 1
Switching frequency Since switching is damped and slow, 5
switching frequency is of secondary STANDARDS
importance. Mounting interface Wandfluh standard 0 Q [l/min]
Service life time 10 (number of switching cycles, 0 5 10 15 20
7
theoretically) Solenoids DIN VDE 0580
Voltage tolerance ± 10 % with regard to nominal voltage Connection execution D EN 175301 – 803 Switching times, influence of the soft switching Switching times, influence of the soft switching
Standard nominal 12 VDC, 24VDC, 115 VAC, 230 VAC Protection class EN 60 529 Solenoid energised Solenoid deenergised
voltage AC = 50 to 60 Hz, rectifier integrated in Contamination efficiency ISO 4406 Measured with WWMFA04-ACB-G24 compared Measured with WWMFA04-ACB-G24 compared
the connector socket with WDMFA04-ACB-G24 at Q = 10 l/min with WDMFA04-ACB-G24 at Q = 10 l/min
Note! Other electrical specifications see data sheet 1.1-168 U [V] U [V]
(slip-on coil V) and 1.1-175 (slip-on coil N) 24 24
0 0
p [bar] p [bar]
E
E
100 K1049_e 100 K1050_e
80 Soft-switching valve 80
SURFACE TREATMENT SEALING MATERIAL 60 Standard valve 60 Standard valve
◆ The valve body is painted with a two component paint NBR or FKM (Viton) as standard, choice in the type code 40 40 Soft-switching valve
20
20
◆ The screw plug, the slip-on coil and the armature tube are 0 0
zinc-nickel coated 0 0 0,1 0,2 0,3 0,4 0,5 t [s] 0 0 0,1 0,2 0,3 0,4 0,5 t [s]

www.wandfluh.com Illustrations are not binding Data subject to change 2/4 Edition: 22 13 1.4-13 E www.wandfluh.com Illustrations are not binding Data subject to change 3/4 Edition: 22 13 1.4-13 E
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