Design Engineering

NAMUR valves from Festo offer two-way convertibility


General DPN

Festo’s new VSNC series of standard solenoid NAMUR valves is two valves in one that suit a wide range of process applications.

By  turning its seal 180°, it converts from a 5/2-way valve into a 3/2-way valve, making it equally well-suited for use with a single-acting or a double-acting pneumatic actuator. In 3/2-way mode, exhaust air is fed via the seal into the spring chamber of the actuator. This protects the chamber from contaminated ambient air and guarantees a longer service life for the actuator.

The VSNC’s distinguishing features include a modern design, great durability proven by exhaustive testing as well as an attractive price/performance ratio.

This new valve series is well-suited for applications involving the mixing or fermentation of liquids, bulk materials and gases.

It can be combined with process valves in many fields, such as water management as well as the production of chemicals or pharmaceuticals. The VSNC product range also includes solenoid options certified to NEC 500 for Class 1, Div. 1 and 2, made especially for explosive environments.


Like any magnetic valve, the VSNC consists of a main valve and coil, each of which can be ordered separately, or as a complete unit using the Festo configurator.


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