Filter Regulator with Back Flow Mechanism AW20K/30K/40K - SMC

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Filter Regulator with Back Flow Mechanism AW20K/30K/40KFlow Characteristics (Representative values)AW20KOutlet pressure MPaPressure Characteristics (Representative values)AW20KAW40KOutlet pressure MPa0.60.50.40.30.20.10.25000.2200 400 600 800Flow rate L/min (ANR)AW40K 1/2Outlet pressure MPa0.60.50.40.30.20.100Set point1/41000 2000 3000Flow rate L/min (ANR)AW30KOutlet pressure MPaOutlet pressure MPa0.250.2Condition:Inlet pressure 0.7MPaAW40K-06 3/4Outlet pressure MPa0.60.50.40.30.20.10.60.50.40.30.20.1003/800 500 1000 1500Flow rate L/min (ANR)1000 2000 3000 4000Flow rate L/min (ANR)Conditions: Inlet pressure 0.7MPaOutlet pressure 0.2MPaFlow rate 20L/min (ANR)Set pointSpecific Product PrecautionsBe sure to read before handling.Refer to pages 75 through 78 forsafety instructions and F.R.L. unitprecautions.Mounting & AdjustmentWarning1. Set the regulator while checking thedisplayed values of the inlet and outletpressure gauges. Turning the knobexcessively can cause damage to theinternal parts.2. The pressure gauge included withregulators for 0.02 to 0.2MPa setting is forup to 0.2MPa use. Exceeding 0.2MPa ofpressure can damage the gauge.3. Do not use tools on the pressure regulatorknob as this may cause damage. It must beoperated manually.Caution1. Be sure to unlock the knob before adjustingthe pressure and lock it after setting thepressure.Failure to follow this procedure can causedamage to the knob and the outlet pressuremay fluctuate.• Pull the pressure regulator knob to unlock.(You can visually verify this with the "orangemark" that appears in the gap.)• Push the pressure regulator knob to lock.When the knob is not easily locked, turn itleft and right a little and then push it (whenthe knob is locked, the "orange mark", i.e.,the gap will disappear).Orange mark0.150.15000.20.30.4 0.5 0.6 0.7 0.8Inlet pressure MPa0.91000.20.30.4 0.5 0.6 0.7 0.8Inlet pressure MPa0.91AW30KAW40K-060.250.25Outlet pressure MPa0.20.15000.20.30.4 0.5 0.6 0.7 0.8Inlet pressure MPaSet point0.91Outlet pressure MPa0.20.15000.20.30.4 0.5 0.6 0.7 0.8Inlet pressure MPaSet point0.912. A knob cover is available to preventcareless operation of the knob. Refer toFeatures 1 for details.MaintenanceWarning1. Replace the element every 2 years or whenthe pressure drop becomes 0.1MPa,whichever comes first to prevent damageto the element.64
AW20K/30K/40KOperating PrincipleAA-AwFigure 1NormalSMCP U S HtoLO C KPressure indiaphragmchamberInlet pressure(IN)AeFigure 3Figure 2Back flowqPressure indiaphragmchamberInlet pressure(IN)IN(Inlet pressure)OUT IN(Outlet pressure) (Inlet pressure)rOUT(Outlet pressure)When the inlet pressure (P1) is higher than the set pressure, the check valve w closes and operates as a normal regulator (Figure 1).When the inlet pressure (P1) is shut off and released, the check valve w, opens and the pressure in the diaphragm chamber q isreleased into the inlet side (Figure 2).This lowers the pressure in the diaphragm chamber q, and the force generated by pressure regulator spring e lifts the diaphragm.Valve r opens through the stem, and the outlet pressure is released to the inlet side (Figure 3).ConstructionAW20K to 40KAA-AiwSMCtP U S HtoLOC KqParts listNo.12No.3BodyBonnetDescriptionDescriptionValve assemblyMaterialAW20K AW30K AW40K AW40K-06Zinc die-cast Aluminum die-cast Platinum silverPolyacetalBlackMaterialAStainless steelBrass, HNBRAW20KAW20P-090ASParts no.AW30KAW30P-090ASAW40KAW40P-090ASIN(Inlet pressure)NoteAW40K-06AW40P-090ASOUT(Outlet pressure)yeru4567865Filter elementNon-wovenDiaphragm assemblyBowl O-ringBowl assembly Note 1)Check valve assembly Note 3)fabricAF20P-060SAF30P-060SAF40P-060SNote 1) Including O-Ring. Contact SMC regarding the bowl assembly supply for PSI and °F unit specifications.Note 2) Bowl assembly for AW30K to AW60K includes a bowl guard (steel band material).Note 3) Check valve construction includes the check valve itself, check valve cover, and 2 screws.AF40P-060SWeatherability NBRNBRPCPOM, PBTAR20P-150ASC2SFP-260SC2SFAR20KP-020ASAR30P-150ASC3SFP-260SC3SF Note 2)AR20KP-020ASAR40P-150ASC4SFP-260SC4SF Note 2)AR20KP-020ASAR40P-150ASC4SFP-260SC4SF Note 2)AR20KP-020AS
Page 1: Filter Regulator with Back Flow Mec
Page 5: Filter RegulatorAW20(K) to AW40(K)M

Filter Regulator with Back Flow Mechanism AW20K/30K/40K - SMC

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