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.

• SPDT switches
• Type 3R (NEMA) or Type 4 (NEMA) polycarbonate enclosure provides dust protection in indoor and outdoor applications.
• Viton® diaphragm allows use in fluid lines carrying chlorinated water, treated water, or other nonhazardous fluids.
• Maximum fluid pressure: 290 psig
• Maximum fluid temperature: 250°F
• Minimum fluid temperature: -20°F

• For general purpose applications where high sensitivity is required and moderate or low flow rates are encountered such as air conditioning, heating and hydronic systems, water, fuel oil, some viscous liquids and oils in process work
• In-line configuration eliminates need for a pipe tee
• High flow capacity
• 1/2" NPT
• SPDT snap switch
• Switch compartment is completely sealed to protect it from the liquid
• Sensitivity adjusting screw makes flow adjustment easy
• Minimum temperature: 32°F
• Maximum temperature: 225°F
• Maximum operating pressure: 100 psi