Page 1236 - Softbound_Edition_19_en

Proportional flow control valve

Proportional 2-way flow control cartridge
◆ direct operated M22 x 1,5
◆ Q = 25 l/min ISO 7789
max
◆ Q N max = 25 l/min
◆ p = 350 bar
max

DESCRIPTION APPLICATION
Direct operated, pressure compensated proportional flow control Proportional flow control valves are suitable for precise speed
valve in screw-in cartridge construction for cavity according to ISO control, where the load current has to be maintained constant inde -
7789. With the solenoid deenergised, the control spool is held in the pendent of the input and output pressure. The screw-in cartridge is
closed position (QN) or open position (QO) by a spring. The change perfectly suitable for installation in control blocks and is installed in
of the electric current is followed by a proportional volume flow sandwich- (vertical stacked systems) and in flange plates (corres-
change. From the input (1), the fluid flows over a throttle and a con- ponding data sheets in this register). For machining the cartridge
trol spool to the controlled output (2). For the control, Wandfluh cavity in steel and aluminum blocks, cavity tools are available (hire
proportional amplifiers are available (see register 1.13). or purchase). Please refer to the data sheets in register 2.13.

SYMBOL
Simplified Detailed QN… Detailed QO…
2 2 2

1

1 1

GENERAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS

Designation Proportional 2-way flow control valve Protection class Connection execution D: IP65
Construction Direct operated Connection execution J: IP66
Mounting Screw-in cartridge construction Connection execution G: IP67 and IP69K
Nominal size M22 x 1,5 according to ISO 7789 Relative duty factor 100 % DF
Actuation Proportional solenoid Standard nominal 12 VDC, 24 VDC
Ambient temperature -25…+70 °C voltage
Weight 0,64 kg Limiting current at I = 1360 mA (U = 12VDC)
G
N
MTTFd 150 years 50 °C I = 680 mA (U = 24VDC)
G
N
Note! Other electrical specifications see data sheet 1.1-173
(slip-on coil W) and 1.1-174 (slip-on coil M)

www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 19 30 2.6-631 E