Shuttle Flow Switch Visually Indicates Flow/No-Flow

Sept. 1, 2003
The series P4 piston flow switch targets industrial applications such as welders, lubrication systems, medical sterilizers, and laundry chemical dispensing. The switch is made of a Ryton R4 housing and piston, a 316SS spring, and a Viton O-ring....

The series P4 piston flow switch targets industrial applications such as welders, lubrication systems, medical sterilizers, and laundry chemical dispensing. The switch is made of a Ryton R4 housing and piston, a 316SS spring, and a Viton O-ring. Water-based liquids are monitored with fixed set points from 0.1 to 1.5 gallons/minute. Normally open or normally closed single-pole-single-throw or single-pole-double-throw hermetically sealed reed-switch styles are available. Inlet and outlet ports are 9/16-in. UNF-2B thread with optional 1/8-in. and 1/4-in. NPT or 1/2-in. barbed adapters. Prices range from $65 to $75. Optional adapters cost $4. Availability is from stock.

Dwyer Instruments Inc.www.dwyer-inst.com; (219) 879-8000

About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.

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