VXFA2 1 A A Port size Piping Symbol Port size 20A 25A 40A 50A 1 2 3 4 5 65A 6 80A 90A 100A 7 8 Symbol A Direct piping type Piping A B Direct piping type Flange type A B C D Direct piping type Flange type Flange body I type Flange body II type B Flange type Material . With/without silencer Symbol A B NBR/POM NBR/POM Diaphragm/ Main valve material Without With With/without silencer. Air Operated Type A: Direct piping type B: Flange type C: Flange body I type (Flange mounting type) D: Flange body II type (Through hole mounting type) . For 40A or less, silencer cannot be selected. How to Order For other special options, refer to page 274. G thread NPT thread Common Specifications Diaphragm/Main valve material NBR/POM RoHS 2 Port Air Operated Valve For Dust Collector Series VXFA2 273 Selection of Pilot Valve When selecting the air operated type VXFA2 series, select the 2 port valve with the stated orifice diameter or more. VXFA21 to VXFA23: o5 mm or more VXFA24 to VXFA28: o4 mm or more Caution VX2 VXK VXD VXZ VXS VXE VXP VXR VXH VXF2 VX3 VXA A