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WBV Series - Diaphragm solenoid valve for dialysis machines

Orifice diameter 4.0mm

WBV Series Valves
WBV valve hose barbs


2/2-way diaphragm solenoid valve with fluid separation normally closed.

Designed for dialysis machines and irrigation lines with a large nominal width of 4 mm and a compact design. 

With a media temperature range of up to 95 ° C and a low power consumption of 6 W it offers advantages compared to other models. 

Various connection options are available, including an O-ring version that can be mounted directly on the expansion tank.

With an operating pressure range from -900 to 3000 mbar on all connections, this valve series enables operation even in applications where the pump flow is reversed.


2/2-way normally closed
Orifice diameter
4.0 mm
Port Connection
hose barbs | O-ring
Operating voltage
12 VDC | 24 VDC
Operating pressure range
input: -900 - 3000 mbar
output: -900 - 3000 mbar
Diaphragm material
Housing material
Fluid temperature range
5 - 95°C
Ambient temperature range
0 - 50°C
Power consumption
6 W
Operating duration
100% ED
Mounting direction
Resistant to neutral and aggressive liquids / gases
(see resistance lists)
48.0- 57.0 x 33.0 x 84.8 mm

Customizable to specific requirements (e.g. higher pressure range, different operating mode, higher temperature range, different operating voltage, different port connections, ...)