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Internal Gear Pumps & External Gear Pumps

Our ranges of internal gear pumps and external gear pumps cover capacities from microlitres per hour to 345 m3/hr. Maximum discharge pressures between 8.7 Bar and 150 Bar can be covered, depending on the duty required and the pumped liquid's characteristics. All our gear pumps give smooth pulse-less accurate positive displacement pumping over a wide range of temperatures and viscosities, from thin liquids to high viscosity liquids. With a choice of wetted materials and shaft sealing options, we are able to offer you the right gear pump for your application.

viking internal gear pumps micropump external gear pump liquiflo external gear pump hnpm internal gear pump
viking external gear pumps


Manufacturer
Pump type
Capacity Range
Maximum Differential Pressure
Wetted Material Options
Sealing Options
SMALL PUMPS FOR LABS, R&D AND OEMS
HNPM
microlitres to 1152 ml/min
150 bar
Stainless Steel
Hastelloy C 22
Hastelloy C 276
PEEK

Dynamic Seal
Magnet Drive

MICROPUMP
ml/min to 40 l/min
8.7 bar
316 Stainless Steel
Hastelloy C
Titanium
Magnet Drive
POSITIVE DISPLACEMENT PUMPS FOR THIN & VISCOUS LIQUID PUMPING, LOW FLOWS AT HIGH PRESSURES
LIQUIFLO
0.5 to 200 l/min
24 bar
PFA
316 Stainless Steel
Hastelloy C
Titanium
Packing
Mechanical Seal
Magnet Drive
VIKING
Up to 45 m3/hr
172 bar
Ductile Iron
Cast Iron
Packing
Lip Seal
Mechanical Seal
Magnet Drive
VIKING
Up to 345 m3/hr
17 bar
Ductile Iron
Cast Iron
Cast Steel
Stainless Steel
Packing
Lip Seal
Mechanical Seal
Magnet Drive

 

Internal Gear Pump Advantages
Applications
External Gear Pump Advantages
Applications
Only two moving parts All varieties of fuel oil and lube oil Non-pulsating discharge Various fuel oil and lube oils
Only one stuffing box Resins and Polymers Constant and accurate output Chemical additive and polymer metering
Non-pulsating discharge Alcohols and solvents Low NPSH required Chemical mixing and blending (double pump)
Excellent for high viscosity liquids Asphalt, Bitumen and Tar Easy to maintain Industrial and mobile hydraulic applications (log splitters, lifts etc)
Constant and even output Polyurethane foam (Isocyanate and Polyol) High speed Acids and caustic
Operates well in either direction Food products such as corn syrup, chocolate and peanut butter No overhung bearing loads Low volume transfer or application
Low NPSH Paint, inks and pigments Relatively quiet operation  
Easy to maintain   Design accommodates wide variety of materials  

 

 

 

 

 

 

 
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engineers ltd
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