Cascade TVO-2 Vacuum Purge Drying Oven

from $4,000.00 $3,800.00

CVO-2 TVO-2 Vacuum Purge Drying Oven 110-120V / 1ph / 6A  50/60Hz 18.8"W x 24.5"D x 24.5"H 26 to 250°F 1.67 cu ft 1 Each
CVO-2-2 TVO-2 Vacuum Purge Drying Oven 220-240V / 1ph / 4A 50/60Hz 18.8"W x 24.5"D x 24.5"H 26 to 250°F 1.67 cu ft 1 Each

Cascade's Model TVO-2 (also known as Model CVO-2) offers incredible temperature stability for vacuum drying and purging of pharmaceuticals, botanicals, slurries, or any temperature sensitive material. This vacuum oven liberates solvents, water, and other unwanted compounds. It's ideal for small batch, R&D and laboratory environments.

TVO-2 Vacuum Oven Features

  • NRTL Certified by TUV
  • Flexible shelving configuration of 5 each 11.5"" x 19"" stackable shelves
  • Stable temperature control. Digital temperature readout with temp sensor INSIDE the oven
  • Solvent resistant BUNA door gasket
  • Bright LED lights in window for visibility of sensitive material
  • Digital vacuum gauge reads in inches of mercury
  • Smooth, quarter-turn vacuum and vent valves
  • Rear KF-25 port allows for rapid MAX EVAP purging or running feedthroughs inside oven for monitoring
  • 120V or 220V power options are available
  • Quality Tempered Rated Glass NGI-US to ANSI Z97.1.2007 156CFR/201 11 SGCC -2577 1/2 UA
  • Adjustable leveling feet insure your unit sits solid and level in the workspace

Exceptional Temperature Control & Stability

The Cascade TVO-2 uses a unique control logic not found in most lab grade vacuum ovens. The temperature probe is INSIDE the oven, which minimizes temperature overshoot and delivers best-in-class temperature stability and uniformity particularly in the low temperature ranges. Accurate, stable temps throughout the TVO-2 eliminate hot and cold spots, making accurate use of every inch of shelf space.

Independent Overtemp Failsafe Protection

The Cascade Sciences TVO-2 is equipped with a heating cutoff system that will automatically stop power to the heaters when the oven shelf temps exceed 392°F or 200°C. This protection system will provide peace of mind for overnight processing or unattended vacuum bake outs.

NRTL Certification #U8 170464972 077. No Extra cost.

The TVO-2 Vacuum Oven comes certified by the Nationally Recognized Test Lab, TUV. This certification is a requirement by many municipalities.

  • CAN/CSA-C22.2 No. 61010-1:2012
  • +UPD No. 1:2015-07 + UPD No. 2:2016-04
  • CAN/CSA-C22.2 No. 61010-2-010:2015
  • UL 61010-1:2012/R:2016-04
  • UL 61010-2-010:2015
  • EN 61010-1:2010
  • EN 61010-2-010:2014

Digital Vacuum Gauge

The digital vacuum gauge installed on the TVO-2 is factory default set to read in inches of mercury ('Hg) with a scale of 0 - 29.9""Hg. Change the unit of vacuum measurement to read in a wide variety of units from mmHg, bar psi, kPa, cm2, mmH20. Zero out the vacuum gauge to calibrate for just above sea level adjustments.

Log Temperature & Vacuum With Data Port

The TVO-2 features a rear mounted data port which outputs a digital log line once per minute. Viewing/logging this data requires terminal emulator software such as the open source (BSD License) emulator Tera Term.

Equipped for Inert Gas Backfill. Built-In Safety Relief

Introduce inert gasses such as nitrogen, argon, helium, etc. as part of your process via the 1/4"" rear vent barb. The maximum backfill pressure is 15PSI. In an overpressure situation, a simple, built-in safety relief allows gasses to escape via a spring loaded tempered window.

Flexible Pumping / Feedthru Connection Ports

The TVO-2 ovens offer two different vacuum oven connection points. The standard connection is a 3/8th dia barb located at the rear of the oven. It is connected to the vacuum valve level on the front control panel. For even faster evaporation, purging or drying consider upgrading to the MAX EVAP connection kit. The MAX EVAP connection kit secures to the oven's rear 1” dia KF-25 port located on the back center of the chamber. The MAX EVAP connection never reduces flow by continuing with 1” diameter vacuum rated clear lines, a 1” dia KF-25 side mounted vacuum valve and KF-25 fittings and hardware. This KF-25 port can also be used to run temperature feedthrus, or monitoring sensors inside the vacuum chamber during processing.

Stackable Shelf Design For Maximum Temperature Conduction

Under vacuum, there is no air inside a vacuum oven. Temperatures are achieved by a process of conduction and radiation to move temperatures into the product inside the oven. Cascade's stackable shelf design makes the most of this opportunity by making the chamber longer and narrower, rather than square and supplies stackable shelfs in multiple height configurations to allow for the fastest, most uniform transfer of heat.

Ergonomically Designed, Easy Quarter-Turn Valves

For anyone that has struggled with consistently turning the small, round, low-quality vacuum/vent valves, relief is in sight. You will love our large, quarter-turn vacuum/vent valves. Your wrists will thank you!

ANSI Rated Tempered Glass + USA Made Steel

Cascade ovens are made in Oregon, USA with high quality materials. Our glass is NGI-USA Tempered and certified to ANSI Z97.1.2007 16CFR / 201 11. Our door handles are rugged brushed steel, not plastic. Our vacuum vessels are constructed with American made steel. We've tried lower cost, imported steel. But over time, vacuum chambers made of lesser quality/lower tolerance material cannot withstand the flex and pressure changes of vacuum pumping/venting/purging. This can deteriorate vacuum integrity and the oven will lose its ability to hold vacuum.


Volume 1.67 Cubic Ft.
Interior 12""W x 20""D x 12""H/ 305mm x 508mm x 305mm
Exterior 18.8""W x 24.5""D x 24.5""H / 478mm x 622mm x 622mm
Low Temperature Processing Range 26°F to 250°F (121°C)
Temperature Uniformity +/- 1.5°F @ 105°F (40.5°C)
Temperature Stability +/- 0.4°F @ 105°F(40.5°C)
Vacuum Valve 1/4 Turn Lever
Vent Value 1/4 Turn Lever
Interior Lighting LED Strips (Rated to 150C)
Glass Window Tempered NGI-US to ANSI Z97.1.2007
Vacuum Gauge Digital. 0 to 29.9”Hg Reads in mmHg, bar psi, kPa, cm2, mmH20
Temp Controller Digital Set Point
Accurate Within 1°F
Independent Overtemp Failsafe
Ports (Rear) Vacuum: 3/8"" barb
Vent: 1/2"" Barb
Auxilary: KF-25 Port
Data: Log temp & vacuum levels
Inert Gas Introduction Yes. Via 1/4"" Vent Barb
15 psi max inlet pressure
Power Option 110V - 120V / 1ph / 6A 50/60Hz
Cord Included
NEMA 5-15 Power Outlet
220V - 240V / 1ph / 10A 50/60Hz
Cord Included
NEMA 6-15R Power Outlet
Shelves Comes with 5 in a flexible configuration
Surface Area: 12""W x 19.5""D
Weight Capacity: 50 lbs
Weight 148 lbs / 67.1 Kg
Shipping Weight: 183 lbs / 83 Kg
Shipping Dimensions 33""L x 33""W x 47""H / Class 85
Warranty 1 Year
Gaskets not included