SMC PF2W704T-N03-67 Digital Flow Switch for Water, High-Temp, 0.5-4 L/min, 3/8 NPT

SMC PF2W704T-N03-67 Digital Flow Switch for Water, High-Temperature Type, 0.5 to 4 L/min

The SMC PF2W704T-N03-67 is an integrated-display digital flow switch for water from the PF2W7 series, built for high-temperature fluids up to 90°C. It monitors and switches on water or coolant flow across a 0.5 to 4 L/min range, with a 3-digit LED display that toggles between instantaneous and accumulated flow, two PNP open-collector outputs, and a lead wire with M12 connector. The mounting bracket is integrated into the body for straightforward installation.

Key Specifications

• Digital flow switch for water and coolant, integrated display type
• Flow rate range: 0.5 to 4 L/min
• High-temperature fluid type: 0 to 90°C
• Two PNP open-collector outputs (max 30 V, 80 mA)
• 3-digit LED display, switchable between instantaneous and accumulated (cumulative) flow
• With unit switching function
• Port size: 3/8 NPT
• Connection: lead wire with M12 connector, 3 m
• Accuracy: ±5% F.S. (flow range dependent); repeatability ±3% F.S.
• Enclosure rating: IP65
• Proof pressure: 1.5 MPa (water)
• Integrated mounting bracket

Part Number Breakdown

• PF2W7: PF2W7-series digital flow switch for water, integrated display type
• 04: flow rate range 0.5 to 4 L/min
• T: high-temperature fluid type, 0 to 90°C
• N: NPT thread
• 03: 3/8 port size
• 67: PNP open collector, 2 outputs

Applications

Monitoring cooling water and coolant flow on machine tools, welding equipment, laser and spindle cooling, injection molding, and temperature control units, where a drop or loss of flow needs to trigger an alarm or interlock to protect equipment.

Automation Distribution is an authorized SMC distributor supplying PF2W series digital flow switches nationwide.