At Palo Verde, many years ago, we did use a type of check value that was placed in the opening of each drain. We had to remove them due to design configuration control and that they would affect the operation of the drain system.
Jeffrey D. Norwood Health Physicist-Senior PVNGS RP Dosimetry Arizona Public Service Company 5801 S. Wintersburg Rd., M.S. 6107 Tonopah, AZ, 85354-7529 Tel: 623-393-2635 Fax: 623-393-2624 Pager: 1-877-443-8336 mailto:jeffrey.norw...@aps.com -----Original Message----- From: Aguilera, Roger [mailto:raaguil...@stpegs.com] Sent: Wednesday, September 21, 2016 8:38 AM To: powernet@HPSpowernet.org Subject: [powernet] Floor Drain Devices ____________________________________________________ USE CAUTION - EXTERNAL SENDER:(powernet-return-388-Jeffrey.Norwood=aps....@hpspowernet.org) Do not click on links or open attachments that are not expected. For questions or concerns, please email the APS Cyber Defense Center team at a...@apsc.com <mailto:a...@apsc.com> or contact the APS Helpdesk. ____________________________________________________ Does anyone use devices in their floor drains that prevent positive air flow out of the drain but allows the drain to work as designed. We at STP find particles around the floor drain due to positive air flow up through the drain There are rubber check valves we are researching Thanks Roger Sent from my iPhone Powernet - a service of the Health Physics Society Power Reactor Section To post message: Send or Reply to: powernet@hpspowernet.org To unsubscribe: send message to powernet-unsubscr...@hpspowernet.org archive(Nov2015->): http://www.mail-archive.com/powernet@hpspowernet.org/ archive(<Oct2015): http://www.mail-archive.com/powernet@hps1.org/ If questions, contact E. Scott Medling, CHP at medl...@hps1.org --- NOTICE --- This message is for the designated recipient only and may contain confidential, privileged or proprietary information. If you have received it in error, please notify the sender immediately and delete the original and any copy or printout. Unintended recipients are prohibited from making any other use of this e-mail. Although we have taken reasonable precautions to ensure no viruses are present in this e-mail, we accept no liability for any loss or damage arising from the use of this e-mail or attachments, or for any delay or errors or omissions in the contents which result from e-mail transmission. Powernet - a service of the Health Physics Society Power Reactor Section To post message: Send or Reply to: powernet@hpspowernet.org To unsubscribe: send message to powernet-unsubscr...@hpspowernet.org archive(Nov2015->): http://www.mail-archive.com/powernet@hpspowernet.org/ archive(<Oct2015): http://www.mail-archive.com/powernet@hps1.org/ If questions, contact E. Scott Medling, CHP at medl...@hps1.org
