• SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing

SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing


Determines the time required for 60mL of sample to flow through a calibrated orifice under precisely controlled conditions. Saybolt Universal Seconds (SUS) is the standard measurement for lubricants, insulating oils and lighter fuel grades, and Saybolt Furol Seconds (SFS) is used for heavier oils and bitumens.

  • Microprocessor control of temperature between ambient and 240 °C (464°F)
  • Four tube capacity
  • Dual digital displays show setpoint and actual temperature
  • Selectable temperature scale - Celsius or Fahrenheit
  • Automatic timing option for simplified, accurate measurement of efflux times
  • Conforms to ASTM D88, D244, E102, and related specifications

Constant temperature bath with automatic timing feature for viscosity determinations using Saybolt viscometer tubes and orifices. At the push of a button, the automatic timer starts the sample flow, senses the 60mL end point, and digitally records and displays the efflux time in 0.1 seconds resolution with an accuracy of 0.05%. Automatic timing improves testing accuracy and convenience, eliminating the chain and cork assembly and the need to manually time each sample. Timer installation is available in any configuration from 1 to 4 positions. Insulated bath interior is constructed entirely of heavy gauge stainless steel. A built-in overflow pipe and drain valve simplifies filling of the bath fluid to the proper level. Chemical resistant top plate provides excellent insulation and is easily removed to allow for cleaning of the bath interior. A cooling coil for tap water or refrigerated coolant is provided for operation at near-ambient temperatures. Steel cabinet has leveling feet and a chemical resistant polyurethane-epoxy finish.

  • Cleaning Plunger
  • Oil Strainer
  • Tube Nut Wrench
  • Port Closures
  • Chained Corks
  • Withdrawal Tube
  • Orifice Wrench
  • Port Covers
  • Thermometer Supports

Conforms to the specifications of: ASTM D88, D244, E102, AASHTO T72; FTM 791-304

Capacity: 4 viscometer tubes

Temperature Range: ambient to 464 °F (240 °C) 

Temperature Stability: ± 0.05 °F (± 0.03 °C)

Bath Capacity: 5 gal (19 L)

Recommended Bath Medium: water or suitable heat transfer fluid

115V 60Hz, Single Phase, 12.3A
220-240V 50/60Hz, Single Phase, 6.4A

lxwxh,in.(cm): 29 x 25 x 33 (74x63.5x84)

Net Weight: 90 lbs (40.8 kg)

Shipping Weight: 102 lbs  (46.3 kg)  

Dimensions: 28x24x33 in. (72x61x84 cm) 

  • K21404 Automatic Saybolt Viscosity Timing Sensor, 115V 60Hz
  • K21494 Automatic Saybolt Viscosity Timing Sensor, 220-240V 50/60Hz
  • K22009 Saybolt Viscometer Tube, Brass
  • K22309 Saybolt Viscometer Tube, Stainless Steel
  • K22010 Saybolt Universal Orifice
  • K22010-C/F Saybolt Universal Orifice with Calibration Certificate
  • K22020 Furol Orifice
  • K22020-C/F Sayblt Furol Orifice with Calibration Certificate
  • K22029 Kansas Road Oil Orifice
  • 332-003-014 Borosilicate Glass Receiving Flask, 60 mL, for SV4000
  • K22030 Orifice Wrench for Universal and Furol Orifices
  • K22039 Orifice Wrench for Kansas Road Oil Orifice
  • K22050 Socket Wrench
  • K22060 Oil Strainer
  • K22070 Cleaning Plunger
  • K22080 Displacement Ring
  • K22090 Withdrawal Tube
  • K22011 Thermometer Support
  • 355-001-001 White Technical Oil, 1 Gallon Container
  • 355-001-002 Silicone Heat Transfer Fluid, 1 Gallon Container
  • 355-001-003 White Technical Oil, 5 Gallon Container
  • 355-001-004 Silicone Heat Transfer Fluid, 5 Gallon Container
  • 250-000-17F ASTM 17F Thermometer
  • 250-000-17C ASTM 17C Thermometer

Below are links to tutorial videos for this product