Instrumentation Process Analyzer Condensed Catalog

VR7 SeriesProduct Features & BenefitsThe VR7 Series is an economicalrelief valve designed to ventexcess pressure from a regulatorshould a minor seat leak occur.This valve is recommended foruse with regulators to protectthe regulator and outlet pressuregauge and is not intended forapplications where repeated orfrequent venting is required.316L SS or Brass,Pressure Relief Valve• Choice of seal materials forsystem compatibility.• Hex body provides wrenchflats.• Available with a variety ofconnections.• Cleaned for O2 service.Note: The VR7 SHOULD ONLY be used to protect Article 3, Paragraph 3 categoryequipment as defined in Pressure Equipment Directive 97/23/EC Dated 29, May 1997.Functional PerformanceFlow CapacityOperating ConditionsMaximum PressureTemperatureAdjustable Ranges0.37 C v750 psig (52 barg)-30°F to 400°F (-35°C to 204°C)10 - 20 psig (0.6 - 1.4 barg)20 - 100 psig (1.4 - 7 barg)100 - 250 psig (7 - 17 barg)250 - 500 psig (17 - 34 barg)* 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: VR7 44MF 1 S VFinished Order: VR744MF1SV1Connection (Inlet & Outlet) 2 Adjustable Range 344MF = 1/4” NPTM x 1/4” NPTF 1 = 10 - 20 psig4FSF = 1/4” FS Female x 1/4” NPTF 2 = 20 - 100 psig(available for Stainless Steel body Only)4FSM = 1/4” FS Male x 1/4” NPTF3 = 100 - 250 psig(available for Stainless Steel body Only) 4 = 250 - 500 psigNOTE: After relieving, service is required.Body MaterialS = 316L Stainless SteelB = Brass4 SealK = FFKMV = FKM37