Doug, Our company also makes high power equipment and some uses the domestic water supply for cooling. We take a different approach than your email suggests.
We determine the water pressure (and flow) that we need to adequately cool our instrument and document it in the manual. It is then the responsibility of the customer to insure this requirement is met. If their water system is not sufficient there are several things they can do (pump, storage tanks, external cooler, etc.). We provide suggestions and on some models we offer a Cooler unit to re-circulate the cooling water in case they can not get enough water from the domestic system. In most cases you have to consider the water supply as 'unreliable'. The pressure can change for a thousand different reasons (too many toilets flushing, people watering lawns on hot dry days, etc.). For this reason we always have to provide some way of verifying the water cooling system is working. On some instruments we simply measure temperature. If it gets too hot it shuts down. Other instruments we have flow detectors. Design your products to be safe in case the water system fails to meet your requirements and let the customer know what is required for water pressure and flow. Brian ----- Original Message ----- From: POWELL, DOUG <[email protected]> To: <[email protected]> Sent: Wednesday, September 22, 1999 11:54 AM Subject: Water Cooled Equipment Hello group, At my company we design water cooled high power equipment. Does anyone know of a resource that lists the domestic water supply pressures and flow rates in various industrial markets around the world? I am interested in minimums and maximums. If not, is there an international standard that is commonly used? Thanks, -doug ======================================= Douglas E. Powell, Compliance Engineer Advanced Energy Industries, Inc. Fort Collins, Colorado 80525 USA --------------------------------------- 970-407-6410 (phone) 970-407-5410 (e-fax) mailto:[email protected] http://www.advanced-energy.com ======================================= --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators). --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
