323A Series Universal Product Line Steel Externals Internal Gear Pumps
Viking's largest product series in the Universal Product Line offers 323A Series high capacity and a variety of sealing arrangements including component or cartridge seals as well as packing. 323A Series pump products come standard with a jacketed bracket and optional jacketed head.
• For heat transfer fluids, the positive displacement internal gear pump ensures stable, non-pulsating flow across a wide temperature and viscosity range, delivering precise thermal control and reliable circulation in closed-loop heating and cooling systems.
• U-Plus™ Bracket (123C Series™): » Seal options include packing, single component seals, cartridge lip seals and cartridge single and double mechanical seals. » Stainless steel window guards offer protection from rotating parts.
• Footed one-piece steel bracket provides rigid mounting to help maintain alignment, which extends seal and bearing life.
• Series designed with an enlarged bearing housing; used in conjunction with a spacer coupling permits easy cartridge seal installation and removal in place without removing the head and rotor/shaft.
• Axial rotor thrust is controlled by double row ball bearing or tapered roller bearings; bushings provide a secondary point of radial shaft support.
• Rotatable bearing housing provides easy rotor end clearance adjustment to compensate for viscosity or wear.
• Numerous material options are available for bushings, idler pins, shafts, rotors, idlers and elastomers.
• Can use direct drive, gear reducer or gearmotor drive, or belt-drive.
• Pressure relief valve standard on non-jacketed pumps; less valve / plain head option available.
Specifications
Capacity: 500 to 1600 GPM, 114 to 364 m³/h
Viscosity: 28 to 2,000,000 SSU, 1 to 440,000 cSt
Pressure: to 200 PSI, to 14 Bar
Temperature: -20 to +800 °F, -25 to +425 °C
Porting: Opposite (180°) (Rotatable Casing), Flanged (ASME / ANSI)
Drives: R Offset Gear Reducer Drive, P Purchased Gear Reducer Drive, D Direct-Mounted Drive, H-HL, V Drive | V-Belt Drive
Mounting: Foot Mount
Sealing: Packing
Typical Applications: Crude Oil I Fuels I Lube Oil I Basic Petrochemicals I Asphalts & Bitumens I Heat Transfer Fluids
Features & Benefits
• For refinery and petrochemical applications
• Recommended for extremely high temperatures
• Widest range of sealing options available

