8000XHT Series

Extreme-Temperature Liquid Flow Meters

  • Standard fluid temperatures from -40 to 200 °C (-40 to 392 °F); customized versions from -60 to 160 °C (-76 to 320 °F).
  • Magnetic-, EMI-, and vibration-resistant stainless steel construction
  • Flow ranges from 0.95 to 60 LPM (0.25 to 16 GPM)
  • Optional temperature measurement capability with Pt1000 RTD sensor
  • Specialized calibration to account for viscosity effects of fluid and operating temperature
  • Compatible with many advanced heat-transfer fluids
  • Standard NEMA 4X / IP66 enclosure ensures reliable performance in wet environments
  • Customization available for OEMs
  • 5-year warranty

Need help finding your product?
Please submit a Flow Product Configuration Form.


Extreme High-/Low-Temperature 8000XHT Series flow meters provide accurate, reliable, and cost-effective measurement of heat transfer fluids and other liquids from -60 °C to 200 °C.

The high-temperature capability is enhanced by Proteus’ world-class calibration expertise, to deliver superior precision and reliability in flow and temperature measurement for critical heat-sensitive processes.

* Flow Product Configuration Form*

Detailed product inquiries: Sales@proteusind.com

Technical inquires: Tech@proteusind.com

Phone: (650) 964-4163

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

Inquiries for outside of North America, please contact, Tofco Japan directly at www.tofco.jp.

Technical and Applications Support


(510) 862-8785

Sales and Customer Service Support


(650) 793-0235



Price List

Additional information

Weight 3 lbs
Connection Size and Type

1" FNPT, 9/16-18 SAE, 3/4-16 SAE, 1 1/16-12 SAE

Flow Range

0.95–9.5 LPM / 0.25–2.5 GPM, 1.1-17 LPM / 0.3-4.5 GPM, 1.5-23 LPM / 0.4-6.0 GPM, 19-227 LPM / 5.0-60 GPM, 3.0-38 LPM / 0.8-10 GPM, 4.5-60 LPM / 1.2-16 GPM

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