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PVS Rheometer

PVS Rheometer Ranges

BOB/STATOR
SAMPLE CUP

VISCOSITY RANGE cP
(mPa·s)

SHEAR RATE
(sec-1)

SAMPLE VOLUME
(mL)*

PVS-B1-D-HC

2-5M

1.7N

12

PVS-B2-D-HC

20-36M

0.38N

55

PVS-B5-D-HC

5-10M

0.85N

25

PVS-TA5B5-D-HC

.5-1M

0.85N

160


* ± 1mL HC=Hastelloy C M=1 Million N=RPM mL=Milliliter
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Characteristic

The PVS is a dynamic coaxial cylinder, controlled shear rate rheometer allowing quick and easy viscosity measurements under pressure at temperatures where sample boil-off is a problem.
The PVS can be used to simulate process conditions for small fluid samples in a laboratory benchtop environment. Applications include chemical compounds containing volatile materials, oil industry, drilling muds and fracturing fluids, processed foods, polymers and paints. Any test sample requiring absolute viscosity measurement under totally enclosed conditions is a viable candidate.

  • Portabe site-to-site mobiity with 1' x 1' x 2' instrument footprint
  • Rheovision software for automation and contro of a test parameters
  • Designed to operate in severe environments with Hasteoy cups and bobs standard
  • Quick and easy to operate
  • Measures sampes from vacuum to high pressure of up to 1000 psi
  • Safety reief vave incuded
  • Measures under temperature conditions: -40°C to +260°C
  • RTD temperature sensor on the inner cyinder surface insures accurate sampe temperature
  • Runs test to API industry standard
  • SRV measurements to 0.2 sec-1
  • Simuation of In-Process conditions:
  • Down Hoe
  • Cooking
  • Bending
  • Reactors
  • Robust motor capabe of speeds up to 1000 RPM
  • Outside cyinder rotates at shear rates up to 1700 sec-1, spinde inside remains stationary
  • Avaiabe with tripe annuus geometry for increased sensitivity when measuring ow viscosity fuids
  • Quick and easy setup
  • Compete with choice of spinde (bob), cup, Rheovision Software and computer
  • Industria standards

Principle of Operation

The outer cylinder (sample cup) is driven by a stepper motor at speeds from 0.05 RPM to 1000 RPM. The inner cylinder (bob) contains an RTD probe on the surface to provide temperature measurement where the shear stress is being measured. Several cup and bob designs with different geometries are available to suit various applications.
The unique torque tube design enables the instrument to respond to minute changes in viscosity, mechanically transmitting a rotational torque signal out of the pressure containment area without friction. Thus all electronics, bearings, and other sensitive components are completely protected from the influences of both the sample fluid and its vapor.

Thermo Bath Option

For samle heating with small space requirement.

Accessories

  • Instrument
  • Choice of Spinde (bob)
  • Sampe Cup
  • Rheovision Software with Ramp Wizard
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CONTACT US

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Service line: 400-891-9365

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