Technical Description Of Wet Bulb Wick - It is a tubular cotton braid made on standard braiders. Used on psychrometers and hygrometers. Diameters generally range from 1/4 to 1/2 inch. The braid lays flat and that is how a diameter is determined. The most important part of the process is to rinse the braid in a hot water and bleach | chlorine solution to remove the cotton oils from the braid. This makes the cotton water absorbent. Some manufacturers add an optical brightener for cosmetic | marketing reasons. A simple test is to cut a piece of the treated wick and drop it into a cup of hot water. If the cotton oils have been removed from the braid by the simple wash described above then the wick will drop immediately to the bottom of the cup.
 
Wet Bulb Wick Purpose- Fits over the end a thermometer bulb. Usually the wick is sold on spools, but may be stored in bulk in boxes. Just cut off a piece about 2 inches long and slide it over one of the thermometer bulbs. Then wet it with water. Hence the term "Wet" and "Dry" bulb.
 
Wet and Dry Bulb Hygrometer - Hygrometers measure the moisture content (humidity) in the environment, either as the percentage of moisture in the air or the amount of moisture in the air. Hygrometers are used in laboratories, but mainly in the poultry business at hatcheries where regulating the humidity is key to production success. Sling Psychrometer - Take humidity readings by comparing the reading of the wet and dry bulb thermometers on standard humidity chart.
 
 
Listings are provided as an aid to those interested in Wet Bulb Wicking as it relates to the poultry hatchery | incubator industry . No warranties or guaranties are expressed or implied. Those listed do not necessarily endorse Wet BulbWick - This site is informational. Content subject to change. Contact info@PepperellUSA Media Group
 
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China Sources - Sourcing wet bulb wick in China would be reaching out to textile manufacturers that make tubular braided cotton cording. The way to measure the braid is to lay it flat. Popular sizes are 1/16, 1/8, 3/16, 1/4, and 3/8 inches (layed flat). The next step is to have the wicking double rinsed in a bath of hot water ~ 190 degrees Fahrenheit with a mild solution of chlorine | bleach. Simple as that !! See Alibaba
 
Alibaba Search - Alibaba.com with keyword "tubular cotton braids" for starters. Alibaba has been around for over 10 years. They are a reputable Chinese manufacturing portal. Yahoo (as of 2015) actually has a stake in this venture. Their purpose is to facilitate business direct with companies and consumers in the US and around the world.
 
Source of Bulk Tubular Wicking - Qingdao Hui Li Yuan Webbing Co., Ltd. is a comprehensive manufacturing company in China. Read More
 
Fluid Wick - Fluid wick is a natural tubular cotton braid usually 1/2 in diameter used again in the hatchery | incubator industry at major poultry producers. It is used to draw water into incubators. Again the concept is simple. A thick braid that has been double rinsed in a chlorine | bleach solution. See Alibaba
 
 
Psychrometers (Wet and Dry Bulb Thermometers) - A psychrometer consists of two thermometers, one which is dry and one which is kept moist with distilled water on a sock or wick. The two thermometers are thus called the dry-bulb and the wet-bulb. At temperatures above the freezing point of water, evaporation of water from the wick lowers the temperature, so that the wet-bulb thermometer usually shows a lower temperature than that of the dry-bulb thermometer. When the air temperature is below freezing, however, the wet-bulb is covered with a thin coating of ice and may be warmer than the dry bulb. Read More
 
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Wet Bulb Wick is a commonly used product in the hatchery business for breeding chickens. The humidity levels must be within very specific ranges. The tools used to determine humidity are simple in use. They are psychrometers and hygrometers. Each of these devices has two thermometers one of which a tubular wick is slid over and wetted.
 
 
How to Determine Relative Humidity From a Wet & Dry Bulb Thermometer - Relative humidity shows how much moisture the air could hold compared to how much it does hold.  Read More
 
 
Wet bulb wicking may also be used on thermocouples used in the HVAC industry. After all the purpose is to keep something wet in relation to something dry for comparisons. Cotton has always been the material of choice, but today there are materials that wick better than cotton such as polypropylene.
 
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