Internal Gear Pumps


The Internal Gear Pump was invented by Viking Pump's founder Jens Nielsen, in 1904. It is used in manufacturing many of the products that we all touch every day.
WHY? The internal gear pump is the "workhorse" of countless manufacturing processes.
- Broadest selection of materials, designs, seals, ports, and displacements.
- Adjustable clearances enable handling viscosities from 28 to 2,000,000 SSU (1 to 440,000 cSt)
- Low shear
Typical Applications
Common internal gear pump applications include, but are not limited to:
- All varieties of refined fuels & lubricants
- Resins & polymers
- Alcohols & solvents
- Asphalt, bitumen & pitch
- Polyurethane foam (isocyanates, polyols & additives)
- Food products such as corn syrup, chocolate & peanut butter
- Paint, inks & pigments
- Soaps & surfactants
- Heat transfer fluids
Materials of Construction & Configuration Options
Externals (Head, Casing, Bracket)
Cast iron, ductile iron, steel, stainless steel, and other alloys
Internals (Rotor, Idler)
Cast iron, ductile iron, steel, hardened steel, stainless steel, and other alloys
Bushings (Sleeve Bearings)
Carbon graphite, bronze, hardened cast iron, silicon carbide, tungsten carbide, and other specials materials as needed
Shaft Seal
Lip seals, packing, component mechanical seals, industry-standard cartridge mechanical seals, API 682 seals and sealless magnetic couplings
Advantages to Internal Gear Pumps
Reliable & Easy to Maintain
Only two moving parts
Adjustable End Clearances
For low or high viscosities, high temperatures, or to compensate for wear over time
Shaft Seal Options
Including packing, lip seal, component seal, cartridge seal and sealless mag drive
Porting Options
Viking’s broadest selection of port locations, configurations and types
Smooth, Non-Pulsing Flow
For accurate flow measurement
One Shaft Seal
More reliable and lower cost than two or four seals used on timed lobe and screw pumps
Compact, Close-Coupled Options
For motor speed operation or with gearmotors
Performance
Flow Range
viscosity
pressure
temperature
Key Internal Gear Pump Elements

Internal Gear Pump Features
