9 Detector Tube Manufacturers in 2023
This section provides an overview for detector tubes as well as their applications and principles. Also, please take a look at the list of 9 detector tube manufacturers and their company rankings.
Table of Contents
What Is a Detector Tube?
Detector Tubes Are Sold Specifically for Each Gas.
A detector tube is a tool used to measure the concentration of a compound present in the gas being measured. They are used to measure the concentration of gases that are harmful to the human body, such as hydrogen sulfide, or highly flammable gases, such as hydrogen. Dedicated detector tube is sold for each gas, and it is not possible to measure different compounds.
A Detector Tube Is Sold for Short and Long Term Use.
There are two types of detector tube: one to measure the concentration of a gas over a certain period and the other to measure the average concentration over a longer period. The use of a detector tube is simple and easy, as anyone can simply use a piston to draw the gas.
Uses of Detector Tubes
Environmental Measurements at Manufacturing and Construction Sites
Detector tubes are used frequently in manufacturing and construction sites because they are easy to operate. Detector tubes are also used for official testing, as they are often used in working environment measurement methods required by law. They can also be used to measure the concentration of flammable gases, thus preventing explosions and ignition.
Detector Tubes Are Also Used for Pollution Control.
Detector tubes are also used to measure the concentration of malodorous substances in the air, thus helping to prevent pollution near factories and manufacturing sites. In research, detector tubes are used to analyze reactions by measuring gases produced by chemical reactions.
Features of Detector Tubes
Detector Tubes Are Used to Determine the Concentration of a Gas Based on the Amount of the Gas That Reacts With the Object Being Measured.
The detector tubes are filled with the gas to be measured. The detector tubes are filled with a substance that reacts with the compound to be measured, and the concentration of the compound to be measured is determined based on the amount of the substance that reacted. The amount of the reacting substance in the tube is determined by the change in color of the substance. The quantitation and detection limits vary with each detector tube.
Tubes Are Used to Measure the Concentration of Gases in Hazardous Areas.
For areas where the oxygen concentration is too low, or where toxic gases are present, or where direct sampling of gases is not possible due to high risk, a remote sampling tube, which is several meters long, is used.
Specialized Detector Tubes Are Used Depending on the Compound, and It Is Essential to Check the Expiration Date Before Use.
As mentioned above, detector tubes are used to determine the concentration of the compound to be measured by reacting with a filler. It is not possible to make measurements using different types of detector tubes. The filler in detector tubes degenerates over time, so it is essential to check the expiration date before using the tubes. When using detector tubes, it is recommended to measure gases at several points in the space to be measured, as the distribution of gases may be biased due to specific gravity or other factors.
Kitagawa Gas Detector Tubes
The Kitagawa gas detector tubes consists of detector tubes and a gas sampler, and has been in use since 1947 as a hydrogen sulfide detector tubes for quality control.
In this detector tubes, the detector tubes are filled with a detector agent that reacts sensitively with the gas being measured, and when the sample gas is vented, the agent reacts with the specific gas and changes color. The gas concentration can be determined by reading the scale on the discolored tip of the detector tubes.
This detector allows the concentration of flammable gases to be measured quickly on site, thus preventing fires and explosions caused by leaking or evolved gases.
The detector tubes are first folded at both ends using a chip cutter or similar tool. The detector tubes are then inserted into the mounting port of the device, and the handle of the device is pulled. The detector tubes are then inserted into the instrument and the handle is pulled. The detector tubes are left in place for a certain period, then removed from the gas sampler and the discoloration boundary is read. The relationship between the concentration of the measured gas and the length of the discoloration is printed on the detector tubes as a concentration scale, which can be read to determine the concentration of the measured gas.
Conditions for Detection of Various Gases (Ammonia, Oxygen, and Dioxide) Using the Detector Tubes
For ammonia gas, the measurement range is less than 30 ppm and the detection limit is about 0.2 ppm when the gas is aspirated once (100 ml). The presence of ammonia causes a neutralization reaction (2NH3 + H2SO4 → (NH4)2SO4) with sulfuric acid, which changes the indicator from pink to yellow.
For oxygen, the measurement range is in the 3-6% range with a detection limit of about 2% for a single aspiration (100 ml). When oxygen is present, the reaction with titanium trichloride (O2 + 4TiCl3 (black) + 6H2O → 4TiO2 (white) + 12HCl) produces titanium oxide, which causes the indicator to change from black to white.
Carbon dioxide has a measurement range of 100 to 2000 ppm with a detection limit of about 20 ppm for a single aspiration (100 ml). The presence of carbon dioxide causes a neutralization reaction (CO2 + 2KOH → K2CO3 + H2O) with potassium hydroxide, which changes the indicator from light red to orange.
List of 9 Detector Tube Manufacturers
*Including some distributors, etc.
Sort by Features
- Default
- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
Sort by Area
- United States of America
- India
-
-
-
-
-
-
-
Dräger
Gas Detection Tubes
-
-
-
-
-
GASTEC CORPORATION
Detector tube
-
-
-
-
-
-
-
Galleon Instru-Tech Private Limited
Gas Detection Tubes
-
-
-
-
-
Uniphos Envirotronic Pvt Ltd
Gas Detector Tubes
-
-
-
-
-
SKC Ltd
Gas Detection Tubes
-
-
-
-
-
Gastech
Detector Tubes
-
-
Detector Tube Manufacturer Ranking
*Including some distributors, etc.Number of Employees
Newly Established Company
- Instrumex: 1990 (33 years ago)
- Honeywell International Inc.: 1885 (138 years ago)
Company with a History
- Honeywell International Inc.: 1885 (138 years ago)
- Instrumex: 1990 (33 years ago)
Related Products
Search from All Categories
This is the version of our website addressed to speakers of English in the United States. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.