Description
The Viking Pump 4124A Series™ is part of Viking’s Universal Product Line — the most versatile range of cast iron, non-jacketed internal gear pumps available. The broadest sealing and materials selection in the Viking lineup makes the 4124A adaptable to an exceptionally wide variety of non-corrosive viscous fluid applications. Positive displacement internal gear geometry, refined over 100+ years, delivers smooth, consistent, non-pulsating flow across viscosities from 28 to 2,000,000 SSU (1 to 440,000 cSt).
Features
- Cast iron construction — rugged, reliable, and economical for non-corrosive service
- Enlarged bearing housing with spacer coupling for easy cartridge seal or O-Pro™ Barrier Seal installation and removal without disconnecting piping
- Tightest internal clearances for high efficiency and excellent self-priming capability
- Rotatable bearing housing for precise rotor end clearance adjustment to optimise for viscosity or compensate for wear
- Axial rotor thrust controlled by double-row ball bearing or tapered roller bearings; bushing provides secondary radial shaft support
- Footed cast iron bracket for rigid, alignment-maintaining mount — extends seal and bearing life
- Pressure relief valve standard on all models except RS size; plain head/less-valve option available
- Rotatable casing for flexible porting arrangement (right angle or opposite)
- Multiple drive configurations: direct drive, gear reducer, gearmotor, or belt drive
- Widest seal selection of any Viking pump line — packing, single component mechanical seal, or wide variety of cartridge seals
Performance
- Capacity: Up to 500 GPM (114 m³/h)
- Viscosity: 28 to 2,000,000 SSU (1 to 440,000 cSt); steel-fitted construction recommended above 2,500 SSU (550 cSt) on smaller sizes
- Max Pressure: 200 PSI (14 bar)
- Temperature Range: −60 to +450 °F (−51 to +230 °C); high-temperature elastomers required above 225 °F (107 °C)
Options
- Porting: Right angle 90° rotatable casing (G–Q & M models); Opposite 180° (QS–RS models); NPT; Flanged ASME/ANSI
- Drives: R — Offset gear reducer; P — Purchased gear reducer; D — Direct-mounted (H–AL); V — V-belt drive
- Mounting: Foot mount
- Sealing: Component mechanical seal; Cartridge mechanical seal; Cartridge triple lip seal; Packing (on 124A sizes); O-Pro™ Barrier Seal (on 1124A sizes)
Applications
- Adhesives, resins, and polymer solutions
- Paints, inks, and coatings
- Asphalt, bitumen, and heavy oils (unheated)
- Vegetable oils, animal fats, and food-grade liquids
- Syrups, molasses, and high-viscosity process fluids
- General industrial non-corrosive fluid transfer across a wide viscosity range
