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September 20, 2021
  All Categories  >  Asphalt Binder Testing (+Superpave)  >  Viscosity/Rheology
  Product Information
In-Line Viscometer
Model: BTVR-7
Price: Inquire
Condition: New
Warranty: Yes
Availability: Inquire
  <<<Price above is for an MSRP in the USA. Please inquire for a detailed quote>>>

Asphalt binders must meet AASHTO PP26 Superpave requirements in HMA production.

To meet these specs, contractors are required to follow proper QC procedures at the refinery distillation towers, at the mixing terminals, and certainly at the asphalt plant.

Storage tanks with improper mixing, inaccurate metering of modifiers, and operator inexperience can add to the likelihood of fluctuations in properties of binder going into the mix. By the time samples are drawn at the HMA plant, taken to the lab, and tested by Superpave binder methods, hours or days of improper mix may have been produced and placed.

The TT-100 In-Line Viscometer provides a method of binder control that is quick, easy, and delivers a continuous record of viscosity and temperature with time. Brookfield concentric cylinder rotational viscosity measurements have been shown to be reliable indicators of Superpave binder properties.

An HMA plant equipped with the In-Line Viscosity System gives instant detection of changes in time to make product adjustments and avoid penalties. The DOT can be given a hard copy record to demonstrate uniform binder properties throughout the construction project.

The TT-100® In-Line Viscometer is designed to provide years of trouble-free service in closed loop systems which require constant monitoring and associated control of product viscosity.

Continuous measurement eliminates need for "Grab" sampling and allows for prediction and constant control of final product properties and Concentric cylinder geometry (Couette type) provides viscosity measurments at defined shear conditions.

The unit's defined shear means agreement with Brookfield Laboratory measurements at equivalent shear rates. Mounts in-line supported by connections: Available in 1", 1½", 2", or 4" pipeline connections; sanitary, threaded or flanged.
  • Constant or variable speed motors available
  • 4-20 mA output signal provides a variety of display and control capabilities
  • Capable of a wide range of pressures, temperatures, viscosities, flow and shear rates
  • Measurement "Zone" is protected from main flow, allowing accurate, repeatable measurement.
  • Easy to check and maintain calibration
  • Can be operated at shear rates of 511 sec-1 as required by the Standards of the API
  • "Explosion Proof" configurations available for operation in hazardous environments
  Testing Standards
  • NCAT Report - Inquire


  • Viscosity Range: 100 - 500,000 (cP/mPa·s)
  • Speeds: Single speed - application specific
  • Input Power: 115 Vac: 50/60 Hz, 230 Vac: 50/60 Hz, 24 Vdc
  • Output 4 - 20 mA


  • Net Dimensions: Inquire
  • Shipping Dimensions: 4.4 Cu Ft.


  • Net Weight: Inquire
  • Shipping Weight: 110 Lbs (50 Kg)

Recommended Accessories

  • Laptop/PC
  • Data acquisition system
  • Inquire for installation requirements
  • Custom software for continuous collection and presentation of viscosity, temperature, and time

Included Accessories

  • RTD temperature sensor
  • Heat control jacket

Other Models

  • Inquire for 230V, 50/60Hz, 150W

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