Tank vent r1.pdf - Key Industrial

Cipriani Harrison Valves Corp.Tank Vent645 Series (Rev. 1/07)ApplicationThe Tank Vent is used as a breather valve to avoidvacuum or over pressurization inside a tank or pipingsystem.Working PrincipleWhen the pressure in a tank goes belowatmospheric pressure the valve sucks in air to reachequilibrium with atmospheric pressure. When thepressure inside of a tank goes above atmosphericpressure the assembly moves up and releases thepressure to reach equilibrium with atmosphericpressure.Standard DesignA light weight seat-seal assembly with calibratedspring is enclosed in a special polymer bushing. Thebushing is guided in a stainless steel housing.Available sizes1.5”, 2”, 2.5”, 3”, 4”, 4”JumboOptionsEnd connections: Sanitary ClampMaterial: AISI 316L or AISI 304L7689251043111Exploded view of standard Tank VentNO. PART NO. DESCRIPTION MATERIAL1 64501 VALVE BODY AISI 316L / AISI 304L2 64502 O’RING SILICONE3 64503 GUIDE BUSHING DELRIN4 64504 SPRING AISI316L / AISI 304L5 64505 O’RING EPDM6 64506 SCREW AISI 3047 64507 COVER AISI 3048 64508 SCREW AISI 3049 64509 SEAT PLATE AISI 316L / AISI 304L10 64510 SEAT DELRIN11 64511 BUSHING DELRINCipriani Harrison Valves Corp.30271 Tomas Street Rancho Santa Margarita, CA 92688 Tel. 949/589-3978 Fax 949/589-3979Email : cipriani@ciprianicorp.com Website : http://www.ciprianicorp.com/1

Tank Vent645 SeriesTECHNICAL SPECIFICATIONS :Material :Main steel parts......................... AISI 316L or AISI 304LOther steel parts........................AISI 304FDA Seals :Standard.................................... SILICONEOptional.....................................VITONEPDMBushing :................................. DE LRINNominal Pressure :Vacuum break : 0.09 PSIPositive Pressure : 1PSIFlow Capacity1.5"- 2" - 250 gpm2.5"- 4" - 550 gpm4" Jumbo - 1100 gpmDimensions (Inches)CSurface Finish :Standard Finish........................ Ra