Proof of closure switch

The PCS is a mechanically activated switch for monitoring the position of the valve plate.

This device can be fitted to valves and actuators. It is designed in accordance with norm EN161 to detect the closed status. The compact, robust and functional design permits a simple and quick installation even on the field.

It is essentially maintenance free.

Available in ATEX ex-proof version.


CuZn G1/8
Stainless Steel G1/8

Operating pressure

0 … 600 mbar
0 … 6 bar

Gas type

Air and non-aggressive gases (Family 1-2-3, EN 437)
Special version for COG and Biogas


EC-type tested and certified according to EN 161


Technical Sheet Download File
Instructions Download File