Clear local flow visibility matters where adding wiring is unnecessary or impractical. This flow indicator shows water flow mechanically, with no electrical supply, and uses an individually calibrated display to make on-site checks quick and direct.
The measuring principle keeps the display protected from the medium. A magnet-equipped piston moves against a spring and operates the pointer through magnetic coupling, while hermetic separation helps prevent the display unit from being contaminated by the medium. That supports dependable reading in water applications from 0.1...85 l/min.
The compact design fits DN 8...25 sizes with G 1/4...G 1 internal threads. Brass and stainless steel versions are available, with pressure resistance of PN 200 and optional PN 500, plus medium temperatures from -20...+120 °C for demanding installation conditions.
A magnet-equipped piston is pushed by the medium against a spring and operates the pointer through magnetic coupling.
The family includes side display versions O and O1 and the frontal display version Z1.
The indicators cover DN 8...25 with G 1/4...G 1 internal threads. Further connection types are available on request.
Media-contacting parts are specified for brass or stainless steel versions, with NBR for brass and FKM for stainless steel.
The standard version is calibrated for horizontal flow from the left. Other mounting positions are possible and influence the display range.
Special ranges, special scaling, PN 500 pressure rating, 0...120 °C temperature indication and a reinforced piston are available.
