Instrumentation Process Analyzer Condensed Catalog

NV55 SeriesProduct Features & Benefits• Internally threadless andspringless.• High cycle life.• Compact size.• Positive, consistent shut off.• Metal-to-metal seal toatmosphere.316L SS, High Flow,Compact Size Valve• Cleaned for O2 service.• Ideal for high flowapplications.• Fully functional from vacuumto 125 psig for AOP valvesand 250 psig for manualvalves.Operating ConditionsOperating PressuresManualvacuum to 250 psig (17.2 barg)AOPLPvacuum to 125 psig (8.6 barg)Actuator Pressure 70 - 125 psig (4.8 - 8.6 barg)Temperature-15°F to 150°F (-26°C to 66°C)Functional PerformanceFlow CapacityAOP versions,Indicator Knob andHandwheelC v 0.55Lever versions C v 0.48Leak RateInternalExternalBubble TightBubble Tight* For detailed information on Materials of Construction, visit us atwww.parker.com/veriflo to review the complete product literature sheet.Ordering Information1 2 3 4Sample: NV55 LL S 44MM VESPFinished Order: NV55LLS 44MMVESP1TypeAOPLPNC = Air Operated, LowPressure, NormallyClosedAOPLPNO = Air Operated, LowPressure, NormallyOpenI= Indicator KnobL = LeverLL = Locking LeverM = Mini LeverS = Spin Handwheel2MaterialS = Stainless Steel3 Connections444MM = 1/4” Male NPT In & Out44FF = 1/4” Female NPT In & Out PM44TT = 1/4” Compression In & Out66MM = 3/8” Male NPT In & Out66FF = 3/8” Female NPT In & Out66TT = 3/8” Compression In & Out88MM = 1/2” Male NPT In & Out88FF = 1/2” Female NPT In & Out88TT = 1/2” Compression In & OutCompression ends include nuts and ferrulesOptional FeaturesThis section can have multiple options= Panel Mount (not availablewith Indicator Knob (I) or AOPunits (AOPLPNC or AOPLPNO)PEEK = PEEK TM Seat (not availablewith VESP option)VESP = Vespel ® Seat (not availablewith PEEK option)Note:Vespel seat material isrecommended for Nitrous Oxide(N 2O) service.35