Please submit a Flow Product Configuration Form or a WeldSaver Configuration Form.


Please contact us directly for additional support and product information.

Customer Support inquiries:

Technical inquires:

Phone: (650) 964-4163

For special orders, partial tax exemption rates, and a California reseller with a resale certificate, please call us directly to place your order.


Proteus Industries

Proteus Industries manufactures and markets a full line of liquid flow switches, meters, sensors, and control systems worldwide.

We offer a wide range of network capable, extreme temperature, rugged, precision liquid flow sensing and control instruments for the semiconductor equipment, automotive, medical and industrial markets.


Our worldwide customers value Proteus’ 40 years of experience and our proven ability to customize flow control products for their complex and specific applications to measure and control flow, along with temperature, improving process control and predicting service shutdown for critical equipment and processes.

Industries We Serve

Semiconductor OEMs & Device Manufacturing

Semiconductor OEMs & Device Manufacturing

Precision Casting & Advanced Heat Extraction

Industrial & Ruggedized Applications

Robotic Welding for Automotive Assembly

Robotic Welding for Automotive Assembly

Robotic Welding for Automotive Assembly

Data Center &
Supercomputer Cooling

Medical Imaging & Radiotherapy

Medical Imaging
& Radiotherapy

R&D and Customization

R&D and Customization

-Next Gen Processes & Technologies

Tofco Flow Controllers

Proteus Industries a North American distributor of Tofco flow management products, including flow meters for ultrapure liquids and flow controllers. These high-quality products are designed and manufactured in Japan for the demanding requirements of the semiconductor industry and other critical applications.

Proteus Industries Inc. 2020 | All Rights Reserved
340 Pioneer Way Mountain View, CA 94041
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