AR North America AR1697 XWA Gear Box 1:2 Ratio 1750 RPM SAEJ609A Flange by | Jul 24, 2026SAEJ609A flange standard for secure, industry-standard connections. Model Number AR1697. Flange Type SAEJ609A. Series 178 (XWA). Maximum RPM 1750. Pump RPM 1750. Flange Sizes 1″ and 1-1/8″. About Annovi Reverberi (AR).