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2015 Maxitrol Company. All Rights Reserved. DRAFT 09.18.2013 3 Appliance Regulators RV Series Appliance Regulators Rubber Seat Poppet Design.....................................................4-9 RV Series Appliance Regulators Straight-Thru-Flow Design...................................................10-13 325 Series Appliance Regulators Lever Acting Design..........................................................14-17 RRS SeriesAppliance Regulators BalancedValve Design......................................................18-21 210 Series Appliance Regulators Balanced Valve Design....................................................22-31 RZ and 210Z Series Appliance Regulators Zero Governor Design.........................................32-37 220 Series Appliance Regulators Pilot Loaded Design..........................................................38-41 SR Series Appliance Regulators Two-Stage Design..............................................................42-45 Line Regulators 325L Series Line Regulators for 2PSI Lever Acting Design.....................................................46-49 325L Series Line Regulators for 5PSI Lever Acting Design.....................................................50-55 Spring Selection Chart .............................................................................................................56-57 Sizing a Regulator .......................................................................................................................58-59 Accessories Venting.......................................................................................................................60-61 Pressure Tap Connector...........................................................................................................61 Dust Cap................................................................................................................................61 Tamper Proof Seals..................................................................................................................61 Choosing a Vent Accessory.....................................................................................................62 Definitions .....................................................................................................................................63 Gas and Air Filters ...................................................................................................................64-67 Gas Pressure Regulator Catalog