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Proportional pressure relief valve
Proportional pressure relief valve

Proportional pressure relief cartridge inverse
◆ pilot operated M42 x 2
◆ Q = 400 l/min ISO 7789
max
◆ p = 400 bar
max
◆ p = 350 bar
N max

DESCRIPTION APPLICATION
Pilot operated proportional pressure relief valve with inverse func- The electrical remote control in conjunction with process controls
tion in screw-in cartridge construction for cavity according to ISO allows economical solutions with repeatable processes. By means
7789. High flow capacity, very sensitively adjustable. When the of the inverse function, the maximum system pressure is main-
operating pressure adjusted by means of the proportional solenoid tained if the electrical valve control falls out (safety function). For
is reached, the valve opens and connects the protected line with machining the cartridge cavity in steel and aluminum blocks, cavity
the drain to the tank. With the solenoid deenergised, maximum tools are available (hire or purchase). Please refer to the data
working pressure is present. If the solenoid current increases, the sheets in register 2.13.

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).

SYMBOL ACTUATION
Actuation Proportional solenoid, wet pin push
type, pressure tight
Execution W.S37 / 19 x 50 (Data sheet 1.1-173)
(T) 2
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
(P) 1

TYPE CODE

B V I PM42 - - / - #
Pressure relief valve
Pilot operated

Proportional, inverse
Screw-in cartridge M42 x 2

Nominal pressure range p 200 bar 200 350 bar 350
N
Nominal voltage U 12 VDC G12
N
24 VDC G24
without coil X5
Slip-on coil Metal housing round W
Metal housing square M
Connection execution Connector socket EN 175301-803 / ISO 4400 D
Connector socket AMP Junior - Timer J
Connector Deutsch DT04 - 2P G

Sealing material NBR
FKM (Viton) D1

Design index (subject to change)
2.3-591

www.wandfluh.com Illustrations are not binding Data subject to change 1/4 Edition: 22 02 2.3-591 E
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