The operating principle bases on a free - floating magnetic piston, which
responds only to the motion of fluid within the pipeline, not to static
or system pressure.
Housing material: brass
Piston material: PVC or PBT
Spring material: stainless steel SUS304
Retaining rings material: stainless steel SUS304
Operating pressure: 300 PSI max. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch, thus
producing the required signal which can be used to actuate audible or
visual alarms as well as relays or other.
Temperature range: -40 - 125oC
Reed switch carry current: 1.5A
Reed switch current: 1.0A max.
Lead wire: AWG 22, 300mm length, to 18, UL1430, free lead wire

We are offering miniature flow switches, which are available in different flow ranges. These switches can be supplied in a bulk quantity within a short time frame. KOBOLD PSR Series Paddle Type Flow Switch can be used wherever a simple, economic yet reliable monitoring instrument is required for monitoring flow rates in pipes. The device operates as follows: The flowing medium presses against the paddle of the KOBOLD flow switch. The paddle is fitted to one end of a balance arm which is in direct contact with a prestressed leaf spring. At the other end of the balance arm is a permanent magnet. This magnet actuates a reed contact located within a moveable housing outside the media. Mounting orientation (horizontal or ): as signal of flow direction.
Procedures should be used when mounting in flow line
The flow set point is adjustable, made in our company
This Control detects air flow or the absence of air flow in ducts, responding only to velocity of air movement. It has a One piece stainless steel paddle.