Question and Answers.pdf

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Self Cleaning Filter to replace existing unit in Bldg 38 Rm SW21
Solicitation number
80NSSC22804924Q
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80NSSC22804924Q- Self Cleaning Filter to replace existing unit in Bldg 38 Rm SW21.

Q: What is the water being used for. Also, the new self-cleaning filter that’s being installed, is it for multimedia purposes

A: The media in the system is our Cooling Tower Water which is city water that is chemically treated for our cooling towers. We sometimes see Algae residue in our filters. The flushing filter is upstream of our main filter which has 90-micron elements. Both filtering systems are upstream of our two high pressure water pumps capable of producing 1500-psig pressure @ 200-gpm each for a total of 400-gpm flow. The flushing filter will see approximately 60-70 psig pressure but we are asking it to have a MAWP of 150-psig.

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