Page 978 - Softbound_Edition_19_en

Proportional pressure relief valve

Proportional pressure relief cartridge with integ-
rated electronics M33 x 2
◆ pilot operated ISO 7789
◆ Q = 230 l/min
max
◆ p = 400 bar
max
◆ p = 315 bar
N max

DESCRIPTION APPLICATION
Pilot operated proportional pressure relief valve with integrated Proportional pressure relief valves with integrated electronics are
electronics as screw-in cartridge for cavity according to ISO 7789. perfectly suitable for demanding applications in which the pressure
When the operating pressure adjusted by means of the proportio- frequently has to be changed. They are used in applications where
nal solenoid is reached, the valve opens and connects the protec- high valve-to-valve reproducibility, easy installation, comfortable
ted line with the drain to the tank. The back pressure in T (2) affects operation and high precision are very important. The integrated
the pressure in P (1). This proportional valve is very sensitively controller reliefs the machine control and operates the pressure
adjustable and suitable for high pressures. The Plug & Play valves control in a closed loop circuit. The applications are in the industri-
are factory set and adjusted and have therefore a high valve-to- al as well as in the mobile hydraulics for the smooth control of
valve reproducibility. The control takes place via an analogue inter- hydraulic actuations. The screw-in cartridge is perfectly suitable
face or a fieldbus interface (CANopen, J1939 or Profibus DP). The for installation in control blocks and is installed in sandwich-
parameterisation takes place by means of the free of cost parame- (vertical stacked systems) and in flange plates (corresponding data
terisation and diagnostics software «PASO» or via fieldbus inter- sheets in this register). For machining the cartridge cavity in steel
face. The USB parameterisation interface is accessible through a and aluminum blocks, cavity tools are available (hire or purchase).
screw plug. As an option, these valves are available with integrated Please refer to the data sheets in register 2.13.
controller. As feedback value generators sensors with voltage or Note! „PASO” is a Windows programm in the flow diagram
current output can be connected directly. The available controller style, which enables the intuitive adjustment and storing
structures are optimised for applications with hydraulic actuations. of all variable parameters. The data remain saved in
case of a power failure and can also be reproduced and
transferred to other DSV.

SYMBOL ACTUATION
Actuation Proportional solenoid, wet pin push
(T) 2 type, pressure tight
Connection Via device receptacle

(P) 1

ELECTRICAL SPECIFICATIONS MANUAL OVERRIDE

Protection class IP67 with suitable mating connector and HB4,5 as standard
closed housing cover
Ramps Adjustable
Parameterisation Via fieldbus or USB
Supply voltage 12 VDC, 24 VDC

Note! Exact electrical specifications and detailed description
of «DSV» electronics can be found on data sheet
1.13-76.

www.wandfluh.com Illustrations are not binding Data subject to change 1/6 Edition: 20 40 2.3-553 E