Page 1254 - Softbound_Edition_19_en

Proportional flow control valves

Proportional 3-way flow control valve
Screw-in cartridge
• Direct operated, pressure compensated m22x1,5
• Q max = 40 l/min, p max = 350 bar ISO 7789
• Q N max = 25 l/min

DESCRIPTION FuNCTION APPLICATION
Direct operated, pressure compensated pro- The 3-way flow control valve serves for maintai- Proportional flow control valves are suitable for
portional flow control valve as screw-in cart- ning the speed of a consumer constant inde- feed control systems, where the consumer flow
ridge with a thread M22x1,5 for cavity acc. to pendent of the load. Superfluous pump output has to be maintained constant with a changing
ISO 7789. Three flow ranges are available. The flow is fed into the return flow system in a cost load. The screw-in cartridge is suitable for in-
volume flow is adjusted by a Wandfluh propor- saving manner, and as a result, prevents an stallation in control blocs as well as in flange-
tional solenoid (VDE standard 0580). The cart- overheating of the hydraulic system. The po- and sandwich valves of the size NG6. Cavity
ridge body is made of steel. A special surface wer controlled, proportional solenoid running tools are available for machining the cartridge
treatment guarantees a good protection against in oil acts directly on the throttle spool, which cavities in steel and aluminium (for hire or for
corrosion and wear as well as very good low- opens the throttle segments in the cartridge purchase). Please refer to the data sheets in
friction characteristics of the pressure compen- body. Proportional to the current demand of the Reg. 2.13 of our documen-
sating- and throttle spool. The solenoid coil is proportional solenoid, the throttle aperture tation.
zinc- /nickel-coated. changes, and with this the volume flow. In case
of a current-free solenoid, the throttle spool is
held in closed position by a spring. For driving
the valve, Wandfluh proportional amplifiers are
available (see Register 1.13).

TyPE CODE
Q D P PM22 - - / - #
Flow control valve
3-way
Proportional
Screw-in cartridge M22 x 1,5
Nominal volume flow rate Q N 8 l/min 8
16 l/min 16
25 l/min 25
12 VDC G12
Nominal voltage U N
58,2 10 24 VDC G24
20 without coil M22x1,5 X5
s30
Slip-on coil Metal housing, round W
(3)
(2)
Metal housing, square M *
Connection execution Connector socket EN 175301-803 / ISO 4400 D
(1)
Connector socket AMP Junior-Timer J
18,7 Connector Deutsch DT04-2P G
Sealing material NBR
15 FKM (Viton) D1
Manual override Armature tube closed (standard)
6,2 78,4 Screwed sealing plug 60,5 HB0
Manual emergency actuation 90 HB4.5
138,9
Design-Index (Subject to change)
50
18
17
* Only available in conjunction with other nominal voltages 60 80 70
and connection versions. (See data sheet 1.1-174)
SymbOLS GENERAL SPECIFICATIONS
simplified detailed Description 3-way proportional flow control valve
Construction Screw-in cartridge for cavity acc. to ISO 7789
Operation Proportional solenoid
Mounting Screw-in thread M22x1,5
Ambient temperature -20…50 °C
1 3 Mounting position any
1 3 Fastening torque M D = 50 Nm for screw-in cartridge
2 M = 5 Nm for knurled nut
D
Weight m = 0,66 kg
Flow direction see symbol
2
Wandfluh AG Tel. +41 33 672 72 72 E-mail: sales@wandfluh.com Illustrations not obligatory Data sheet no.
Postfach Fax +41 33 672 72 12 Internet: www.wandfluh.com Data subject to change 2.6-644E 1/3
CH-3714 Frutigen Edition 11 25