Inquiry (采购产品): Water to air fined tubes Heat exchanger Hello, I would like to ask for a quotation to a heat exchanger with the following characteristics: 1. Heat rejection: 450 Watt. 2. DI-Water flow rate: 100 +/- 20% . 3. Ambient Temperature: 24. 4. Water Entering Heat Exchanger at 30 to 33. 5. Fan: COMAIR ROTRON - Patriot model No.PQ24B4QDNX operates at 90% voltage to reduce noise. Prefered size: 20 X 20 cm. Fins: Cu. ; Al. Please advise us if there is an advantage for 7mm tubes over the 3/8" in the heat exchanger, or vise versa. If the 7mm tubes give better performance / cost / size, please add it to the quotation. The tubes should be of stainless steel, or Al. because of the DI-water running in it. Water pressure is 50psi. QTY.: 1, 5, 10, 50, 100, 400. for Al. fins and for Cu. fins I am willing to answer any question that might arise. Please let me know if the specified heat exchanger is not within your ability, or product line. Sincerely, Shimon Livneh R&D Mech. Eng. Lumenis 972-4-9599153 slivne@lumenis.com **** Hidden Message ***** Shimon Livneh P.O.B. 240 Company: Lumenis E-mail: slivne@lumenis.com **** Hidden Message ***** slivne@lumenis.com