ENARDO PVRV Pressure Vacuum Relief Valve, …

1 ENARDO | East 58th Street | Tulsa, OK 74146-6411 USA | +1-918-622-6161 | 1-800-336-2736 PVRVF eatures and BenefitsPressure Vacuum Relief Valve, Model 450 ENARDO 450 Pressure Vacuum Relief valves are advanced designs for pipe-away applications. This Relief valve provides protection against positive or Vacuum over Pressure and prevents air intake, evaporative losses of product and helps contain odorous and potentially explosive vapors. The Pressure Vacuum Relief valve maintains a tight seal until system Pressure or Vacuum exceeds the set Pressure of the valve. When over Pressure occurs, the weighted pallet lifts, breaking the seal between the seat and pallet, allowing vapors to pass through the valve orifice and relieving the Pressure or Vacuum buildup.

2 The valve reseals upon Relief and remains sealed. Externally coated with Ameron Amershield Aliphatic polyurethane coating at no additional cost. Provides excellent chemical, impact and abrasion resistance. 316 Stainless Steel pallet as a standard for additional corrosion resistance as opposed to other manufacturers that offer aluminum pallets. FEP Teflon pallet seals for long service life to meet any type application. High flow capacity maximizes cost effectiveness. Fully field replaceable pallet and seat assemblies without need for special tools or complex procedures which eliminates the need to send out for rebuilding or total valve replacement (Can be maintained by in house maintenance personnel).

3 EN 13463-1, EN 13463-5: NumbersSizes AvailablePressureVacuumModel 4502" (50 mm) through 12" (300 mm)See table on following table on following Setting RangeMaterials of ConstructionHousing Seat / PalletPallet SealHardwareWeightsGasketsCast AluminumCarbon SteelStainless SteelAluminum/316 SSStainless Steel/316 SSFEP TeflonZinc Plated Series StainlessCarbon SteelStainless SteelLeadCompressed FiberENARDO | PVRVP ressure Vacuum Relief Valve, Model 450 Unit weights indicate Net Weight of valve in pounds at standard set Pressure ( Pressure - Vacuum ), does not include shipping crate or box. Add 20% for gross shipping weight (Domestic Only).

4 Model 450 Dimensions and WeightsIndicates a Pipe-Away Pressure Vacuum Relief valve with 2" inlet by 3" outlet, ANSI 150 lb. raised face flange pattern connections, carbon steel housing and seat, stainless steel pallet and FEP Teflon pallet seal. Pressure setting is 12 inH2O and Vacuum setting is 6 inH2O. / X Inlet Connection Size(2" thru 12")Outlet Connection Size(3" thru 14")Housing Material1. Aluminum4. Stainless Steel5. Carbon SteelKey to ENARDO Pressure / Vacuum Relief Valve Model NumberExample:Pallet Material2. 316 Stainless SteelPallet Seal Material1. FEP Teflon2. Buna-N3. VitonPressure SettingsVacuum SettingsOptionsO.

5 No OptionsA. Special CoatingB. WeightsE. Optional Gasket MaterialG. Steam Jacket or TraceJ. Seat Material450/ X n12321245056 Model 450 Maximum Pressure / Vacuum (mm) (mm)AOverallLengthIn. (mm)BOverallWidthIn. (mm)COverallHeightIn. (mm)DCLI nletIn. (mm) ECLI/OIn. (mm) FCLI/VIn. (mm) WeightAluminumUnitLb. (kg) or (kg) 4502 (50)3 (80)14-7/8 (378)7-1/2 (191)12 (305)6 (152)6-1/2 (165)5-3/4 (146)22 (10)59 (27)4503 (80)4 (100)17-1/2 (445)9 (229)13-5/8 (346)6-1/2 (165)7-5/8 (194)7 (178)31 (14)83 (38)4504 (100)6 (150)20-1/16 (510)11 (279)16-5/8 (422)7-1/8 (181)9-1/2 (241)8-3/8 (213)44 (20)121 (55)4506 (150)8 (200)25-15/16 (659)13-1/2 (343)23-1/4 (591)9-1/8 (232)12-1/4 (311)10-3/4 (273)86 (39)227 (103)4508 (200)10 (250)33-1/8 (841)13-3/4 (349)26 (660)11 (279)15-1/2 (394)14 (356)105 (48)322 (146)45010 (250)12 (300)36-7/8 (937)16 (406)29-1/8 (740)12 (305)17-3/16 (437)15-1/2 (394)145 (66)406 (184)45012 (300)14 (360)

6 43-5/8 (1108)18-7/8 (479)31-7/8 (810)15-1/2 (394)18-1/4 (464)17-3/4 (451)186 (84)538 (244)z - n - to ( increments) inH2O to inH2O ( inH2O increments) Pressure VacuumModelinH2