Transcription of TECHNICAL DATA rELIEf vALvE (Porv) - vikingcorp.com
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TECHNICAL DATA rELIEf vALvE (Porv) - vikingcorp.com
TECHNICAL DATAO ctober 7, 2011 Deluge 287ePrEssurE oPErATED rELIEf vALvE (Porv) moDELs D-3 & D-4 rATED To 250 PsI ( bAr)The viking Corporation, 210 N Industrial Park Drive, Hastings mI 49058 Telephone: 269-945-9501 TECHNICAL services: 877-384-5464 fax: 269-818-1680 Email: DEsCrIPTIoNThe Viking Model D Pressure Operated rELIEf vALvE (PORV) is used in Viking Deluge, Pre-action, Firecycle Multi-Cycle and Surefire Systems. Once tripped, it maintains a positive vent to prevent the deluge vALvE from automatically resetting prematurely. The device is automatically reset when the pressure is removed from the control diaphragm. The device is designed to trip when the trip port is pressurized with water from the intermediate chamber of the control vALvE , or when the water in the inlet is drained from the prime chamber of the control vALvE . The Model D-4 PORV is similar to the D-3, except some components are spe-cially plated for additional corrosion LIsTINgs AND APProvALs: cuLus Listed: VLTRfm Approved: Deluge Sprinkler Systems, Preaction Sprinkler Systems, On-Off Multi-Cycle Sprinkler Systems, and Refrigerated Area Sprinkler Systems3.
TECHNICAL DATA October 7, 2011 Deluge 287e PrEssurE oPErATED rELIEf vALvE (Porv) moDELs D-3 & D-4 rATED To 250 PsI (17.2 bAr) The viking Corporation, 210 N …
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