3. Spray to Waste Batch Powder Booth 3.1 Three-Stage Filter System (Pre-Filter, Primary Pocket Filters an d Final Filters)
3.2 Manometer The manometer is used as a gauge to let you know when your exhaust filters need to be changed. Exhaust filters typically have a static rating of .5 inches of water. Some booths are set up to use additional filters or optional filters that have a higher static rating than the standard .5 inches of water. Check your filter spec sheet to find the exact rating of the filter, but for this guide we will use the standard .5 inches of water column. Step 1 - Locate the Manometer The manometer needs to be located where it can be read daily by the paint department. Locate it on the booth where there are no obstructions such as shelving or walls to interfere with viewing the manometer. Remember, without the manometer, you will have no idea how clogged your exhaust filters are, and therefore , no idea if the booth is performing correctly. The manometer needs to be installed close to the exhaust filter wall to keep the tubing length to a minimum. Excess tubing length will reduce the accuracy of the manometer. There will be a high port and a low port on the top of the manometer. The high port will need to connect to the work chamber, and the low port will need to connect to the chamber on the suction side of the filter grid.
Low Pressure Port (Back Side of Filters)
High Pressure Port (Front Side of Filters)
Filter Grid Wall
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