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The OPW 23 is an open vent and <br />directs vapors upward in accordance with <br />NFPA Code 30. This vent features an <br />aluminum body and a 40 -mesh brass <br />screen. Set screws make installation easy. <br />Materials <br />Body: aluminum <br />Screen: 40 -mesh brass <br />Set Screws: brass <br />Ordering Specifications <br />Product No. in. <br />mm. Description <br />23-0044 1 /r" <br />38 open vent_ <br />23-0033 2" <br />51 open vent <br />005 <br />23-5 3" <br />76 open vent <br />Replacement Parts <br />Part No. <br />Description <br />H -00122-M <br />Screw <br />H-01967 <br />_ <br />Nut <br />H-01969 <br />Screen <br />A OMP PESOOPCES CO- , <br />The OPW 523 and 523S Pressure Vacuum Vents maintain the required pressure in <br />the UST to prevent vapor loss. <br />OPW 5? <br />The OPW 523 Pressure Vacuum <br />Vents discharge upward and are avail- <br />able with a I oz., 8 oz. or 12 oz. pres- <br />sure setting and a % oz. vaccuum <br />setting. Now available in corrosion <br />resistant Duratuff", the OPW 523 <br />comes in 2" and 3" sizes and has a <br />thread -on connection. The rated maxi- <br />mum flow pressure drop is 2 psi at <br />7000 SCFH. The OPW 523 is UL listed <br />and complies with NFPA code 30. <br />523 2" <br />523 3" <br />OPI V ;2 <br />The OPW 523S Pressure Vacuum <br />Vent is similar to the 523 except that it <br />is attached to the vent line with clamps <br />for the 2" and set screws for the 3". The <br />rated maximum flow pressure drop is 2 <br />psi at 7000 SCFH. The OPW 523S is <br />UL listed and complies with NFPA <br />code 30. <br />Materials <br />Body and Cap: Duratuff- <br />Screen and Fasteners: stainless steel <br />Seat Ring: anodized aluminum <br />Adaptor: 2" - Duratuff"I <br />3" - ZA-12 alloy <br />Ordering Specifications <br />Product No. <br />in. <br />mm. <br />Description _ <br />523LP 2200 <br />2" <br />51 <br />1 oz. with threads <br />523LPS-2250 <br />2" <br />51 <br />1 oz. with set screws <br />523LP-3200 <br />3" <br />16 <br />1 oz. with threads <br />523LPS-3250 <br />3" <br />76 <br />1 oz. with set screws <br />523-1100 <br />2" <br />51 <br />8oz. with threads <br />5235-1150 <br />2" <br />51 <br />8oz. with set screws <br />523-3100 <br />3" <br />76 <br />Boz. with threads <br />523S-3150 <br />3" <br />16 <br />8oz. with set screws <br />523-2300 <br />2" <br />51 <br />12oz. with threads <br />5235-2350 <br />2" <br />51 <br />12oz. with set screws <br />523-3300 <br />3" <br />76 <br />12oz. with threads <br />5235-3350 3" 76 12oz. with set screws <br />5235 2" <br />P.O. Box 405003 • Cincinnati, Ohio 452405003 • Telephone: (513) 870.3219 ® (800) 422.2525 ® Fax: (800) 421-3297 <br />® Copyright 1992 DPW Fueling Components/A Dover Resources Company, Printed In USA 9/92 <br />