Specifications include, but are not limited to: Type Rotary Lobe Pump Inline Assembly Rated Capacity 0-1,995 gallons per minute Displacement 399 gallons Maximum Continuous Pressure 40 PSI Starting Torque 3,857 in lbf Rated Speed 0-500 RPM Shaft Diameter 2.4” Flange Connection Class / Size ANSI 16.5-150# / ANSI 10” Solids Handling Spherical Compressible 3” Spherical Hard 1/8” Rotary Lobes Elastomer: NBR Lobe Profile: Helix Lobe Wings: 4 Core: Carbon Steel O-rings & Lip Seals FKM Mechanical Seal Duronit Wear Plates AR500 Steel Housing Segments ASTM A48 Grey Iron Rust Primed Flange Ring ASTM A36 Carbon Steel Bolts Carbon Steel ISO 898-1 Pressure Disc Stainless Steel Type 316L Pump Cover ASTM A48 Grey Iron Rust Primed Gears GMA Class 9 AISI 1045 Steel Gear Housing ASTM A48 Grey Iron Rust Primed Shaft AISI 4140 Alloy Steel