D D C C KCOLto HSUP B B A A KCOL to HSUP !0 o e w y q u r t i !1 !2 !0 o e w y q !1 !2 u r t i Construction AWG20K AWG30K/40K No. Body Bonnet Handle 1 2 3 Material AWG20K AWG30K AWG40K Note Platinum silver Black Black ADC PBT POM No. Description Description 4 5 6 7 8 9 10 11 12 Valve assembly Filter element Diaphragm assembly Bowl O-ring Bowl assembly (1) Pressure gauge (3) Pressure gauge cover Clip Check valve assembly Material Qty. Brass, HNBR Non-woven fabric Weatherability NBR NBR PC . PC Stainless steel . 1 1 1 1 1 1 1 1 1 Part no. AWG20K AW20P-340AS AF20P-060S AR20P-150AS C2SFP-260S C2SF GB2-10AS ARG20P-400S ARG20P-420S AR20KP-020AS AWG30K AW30P-340AS AF30P-060S AR30P-150AS C3SFP-260S C3SF (2) GB3-10AS ARG30P-400S ARG30P-420S AWG40K AW40P-340AS AF40P-060S AR40P-150AS C4SFP-260S C4SF (2) GB4-10AS ARG40P-400S ARG40P-420S Component Parts Replacement Parts C-C D-D A-A B-B IN OUT IN OUT Note 1) Including O-ring. Contact SMC regarding the bowl assembly supply for psi and °F unit specifications. Note 2) Bowl assembly (AWG30K/40K) includes a bowl guard (steel band material). Note 3) Only the standard part numbers are listed for the pressure gauges. For the optional part numbers, refer to page 579. 581 Series AWG20K/30K/40K Filter Regulator with Built-in Pressure Gauge with Backflow Function AC-A AF-A AF�ｮ-A AR-A AL-A AW-A AC AF AF�ｮ AR AL AW�ｮ A�ｮG E�ｮ AV AF