Namur 5/2 solenoid valve, bistable, G 1/4" - MNH 520 701

5/2-way valves with NAMUR interface

All valves are supplied without solenoid coil and standard plug; You must order these separately.

A 5/2 NAMUR valve is a pneumatic valve with standard connection for ports 2 and 4, so it can be mounted directly to a NAMUR actuator without additional hoses or couplings. The actuator controls the opening and closing of, for example, ball or butterfly valves.

The NAMUR standard, widely used in process and industrial applications such as pharmaceuticals, chemicals and food, is defined in VDI/VDE 3845.

A 5/2 valve has three connection ports and two switching positions and can be normally closed or normally open:

• Normally closed (NC): In idle mode, ports 1 and 2 are not connected, while ports 2 and 3 are connected to each other, allowing return air to escape. When the valve is switched, air flows from port 1 to port 2 and the vent port is closed.
• Normally Open (NO): In idle mode, ports 1 and 2 are connected to each other, allowing air to escape when supply air is connected to port 1. When switching, port 1 closes and the inlet air can escape through port 3.

All statements are intended as non-binding guidelines! We are not liable for data selection not confirmed in writing. Pressure data, unless stated otherwise, relate to liquids from group II at +20 C.