? pilot operated
? Qmax = 100 l/min
? pmax = 400 bar
? pN max = 350 bar
M22 x 1,5
ISO 7789

APPLICATION
The electrical remote control in conjunction with process controls
allows economical solutions with repeatable processes. By means
of the inverse function, the maximum system pressure is maintained if the electrical valve control falls out (safety function).The
screw-in cartridge is perfectly suitable for installation in control
blocks and is installed in sandwich- (vertical stacked systems) and
in flange plates (corresponding data sheets in this register). For
machining the cartridge cavity in steel and aluminum blocks, cavity
tools are available (hire or purchase). Please refer to the data
sheets in register 2.13.
SYMBOL
(P) 1
(T) 2
ACTUATION
Actuation Proportional solenoid, wet pin push
type, pressure tight
Execution W.S37 / 19 x 50 (Data sheet 1.1-173)
M.S35 / 19 x 50 (Data sheet 1.1-174)
Connection Connector socket EN 175301 – 803
Connector socket AMP Junior-Timer
Connector Deutsch DT04 – 2P
DESCRIPTION
Pilot operated proportional pressure relief valve with inverse function in screw-in cartridge construction for cavity according to ISO
7789. High flow capacity, very sensitively adjustable. When the
operating pressure adjusted by means of the proportional solenoid
is reached, the valve opens and connects the protected line with
the drain to the tank. With the solenoid deenergised, maximum
working pressure is present. If the solenoid current increases, the
pressure in port P (1) drops. The back pressure in T (2) affects the
pressure in P (1). For the control, Wandfluh proportional amplifiers
are available (see register 1.13).