Applications - PENN Controls - F261KEH - F261KFH - F261MEH - F261MFH - Flow, Liquid Level, and Air‐Volume Control - F261 Fluid Flow Switch

F261 Series Flow Switches Installation Guide

Product name
F261 Fluid Flow Switch
Document type
Installation Guide
Document revision
Revision date
  • Do not install or use this F261 Series Flow Switch in or near environments where corrosive substances or vapors could be present. Exposure of the F261 Series Flow Switch to corrosive environments may damage the device’s internal components and will void the warranty.
  • Do not use F261 Series Flow Switches where the fluid in the pipes drops below the fluid’s freezing point, causing an internal freeze-up.
Important: Use this F261 Series Flow Switch only as an operating control. Where failure or malfunction of the flow switch could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or protect against failure or malfunction of the flow switch.
Important : Utiliser ce F261 Series Flow Switch uniquement en tant que dispositif de régulation. Lorsqu'une défaillance ou un dysfonctionnement du flow switch risque de provoquer des blessures ou d'endommager l'équipement contrôlé ou un autre équipement, la conception du système de contrôle doit intégrer des dispositifs de protection supplémentaires. Veiller dans ce cas à intégrer de façon permanente d'autres dispositifs, tels que des systèmes de supervision ou d'alarme, ou des dispositifs de sécurité ou de limitation, ayant une fonction d'avertissement ou de protection en cas de défaillance ou de dysfonctionnement du flow switch.
  • Risk
  • This product is made of a copper alloy, which contains lead. The product is therefore not to be used on drinking water.

The F261 Series Flow Switches respond to fluid flow in lines carrying water, ethylene glycol, or other nonhazardous fluids. These models also work in applications with swimming pool water and lubricating oils.

F261 Series Standard Flow Switches use a variety of paddle sizes to respond to fluid flow rates in applications with 1 inch trade size (or greater) pipe.

F261 Series Low Flow Switches respond to low fluid flow rates in applications with 1 inch trade size (or less) pipe.

A low-energy model with gold-plated contacts provides improved electrical performance in low-voltage, low-current circuits to operate small relays, solenoid valves, and electronic control circuits.