SMC Corporation of America
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Series PF3W digital flow switch is perfect for applications requiring a constantly monitored flow of cooling or cleaning water. The PF3W series has been improved both in design and operating performance over the PF2W flow switch.  Depending on the selected model, the PF3W is up to 40% smaller in volume, offering improved piping space and flexibility.  Designed to work with fluids up to 90ºC
Applications requiring a constantly monitored flow of cooling or cleaning water now have the perfect solution with the launch of the new PF3W Digital Flow Switch Series from the world leaders in pneumatics - SMC. Developed following the success of SMC’s PF2W flow switch range, their R&D engineers have now taken these flow switches to a new level by improving both their design and operating performance
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74 PF3W721-F12-#T 119 76 PF3W721-F14-#T 123 78 -103No.PF-OMW0010-D PF3W704/720/740 (With flow adjustment valve) Basic type and flow adjustment valve Symbol A AA B D F K L N P Q Q: Number of rotations Model PF3W704S 104 50 63.6 (Max. 68.6) 70.2 34 58.5 18 13.6 2.7 depth 10 19 6 turns PF3W720S 112 54 63.6 (Max. 68.6) 74.2 34 62.5 18 13.6 2.7 depth 10 19 6 turns PF3W740S 142 71 75.25 (Max.

Rated Flow Range: 21 (50 to 250 L/min), Flow Adjustment Valve: None, Thread: N (NPT), Port Size: 14 (1 1/2), Output Specification: L (Out 1: IO-Link: Switch Output, N/P, Out 2: None; Temperature Sensor ), Temperature Sensor: T (Temperature Sensor), Lead Wire: Q (w/M12-M8 Conversion Lead Wire, 0.1 m), Unit Specification: M (Instantaneous Flow Rate: L/min; Accumulated Flow: L; Temp: °C)

Rated Flow Range: 50 to 250 L/min, Flow Adjustment Valve: w/o Flow Adjustment Valve, Thread: NPT, Port Size: 1 1/2, Output Specification/Temperature Sensor: Out 1: IO-Link/Switch Output, N/P; Out 2: None; Temperature Sensor: Yes, Lead Wire: w/M12 -M8 Conversion Lead Wire, 0.1 m, Unit Specification: Instantaneous Flow: L/min; Accumulated Flow: L; Temperature: °C, Bracket: -, Calibration Certificate

Rated Flow Range: 21 (50 to 250 L/min), Flow Adjustment Valve: None, Thread: N (NPT), Port Size: 14 (1 1/2), Output Specification: L (Out 1: IO-Link: Switch Output, N/P, Out 2: None; Temperature Sensor ), Temperature Sensor: T (Temperature Sensor), Lead Wire: Q (w/M12-M8 Conversion Lead Wire, 0.1 m), Unit Specification: M (Instantaneous Flow Rate: L/min; Accumulated Flow: L; Temp: °C), Bracket