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Stan Iverson <br />From: <br />mwade@opw-fc.com <br />Sent: <br />Tuesday, January 26, 1999 8:27 PM <br />To: <br />Stan Iverson <br />Subject: <br />Re: 10 Series/ Testing <br />Stan, <br />Below please find a answer to your question. Please let me know if <br />there is anything else you require. <br />Best regards, <br />Mike <br />Forward Header <br />Subject: Re: 10 Series/ Testing <br />Author: Sean K Scott at OPW <br />Date: 1/26/99 1:42 PM <br />Mike, <br />I suggest only testing to 75 PSI (air pressure). This is 1.5 times <br />our 50 PSI normal pressure rating. UL did test our 10 valve to 250 <br />PSI for 1 minute without any problems. <br />If you have any questions, let me know. <br />Sean <br />Reply Separator <br />Subject: 10 Series/ Testing <br />Author: Michael S. Wade at OPW <br />Date: 1/25/99 3:13 PM <br />Sean, <br />An engineering firm - Tait and Associates, has advised that San <br />Joaquin County plans to require hydrostatic testing of the product <br />line, including shear valves at 300 psi. <br />I advised that our 10 series valves should not be tested above 75 psi. <br />Please advise what is the maximum pressure that the 10 series should <br />be tested ? <br />The 300 psi test came from AO Smith stating that their product could <br />handle 200 psi, 1 1/2 times this is 300 psi. <br />Thanks, <br />Mike <br />