DELTI-Vac REV (DVR) apparatus presents a cost-effective and modern solution for R&D and quality assurance laboratories across the branch. Efficient metal heating block, LCD touch screen interface, precise digital vacuum sensors and gas-tight tubes are combined into standalone apparatus which can be connected to PC for online data streaming, evaluation and remote operation. The DVR was developed for All-in-One testing of high explosives, propellants, rocket fuels, primary explosives and pyrotechnics. DVR provides safe VST measurements of the latest precision level.

A cluster of multiple devices substitutes the outdated concept of controlling unit with connected heating blocks or a master block with connected slave blocks.

Download the product data sheet for detailed information, please.


Tube temperature stability ± 0.025 °C
Temperature range limit 200 / 250 °C
Typical sample weight 5 g
Typical VST tube volume 25 ml 
Typical test time 40 - 48 hours
Typical initial vacuum level 300 Pa
Block heating rate 3.3 °C/min


A standalone device with a touchscreen interface
Clustering of independent units - behaves as a multiblock system
Independent testing temperatures and time for all connected units
Aerogel insulation for the best heating efficiency
Precise data acquisition and recording of measured values
Variable and easy to use software
Overheating protection with an independent temperature sensor
Accurate temperature controlling 
Active air cooling of inner sandwich structure
Additional top heat shield
External sensors for ambient temperature, pressure and humidity
Easy firmware updates via SD card
Calibration opened for local accredited laboratories
Connecting external units (block chiller, tube lift)
Ultimate variability of applications
Wide range of accessories for testing
Wide range of accessories for safety protection
Quartz glassware for high-temperature testing
Borosilicate tubes with extra-long ground joint and valve hole
High strength stainless steel tubes for preliminary testing


DVR is designed to provide unexceptional variability and allows testing according to all major stability standards. Typically followed standards are listed in the table below.

Standard Methods Alternative Methods 
Abel Heat Test  Vacuum drying chamber
Methyl Violet Test Humidity and VOC content
100° Test  Volume of combustion gases
Weight Loss  Test Water content in combustion gases
Bergmann-Junk Test 5A/B/C Safe and precise distillation
Artificial Ageing Treatment Alternative ageing procedures 
Vacuum drying Detection of runaway tendencies
Vacuum furnace  Polymer oxygen resistance
User-Defined Program Induction period / Explosion Temperature Slow & Large scale DTA