Yildiz YMK Internal Eccentric Gear Pump

Fuel Transfer Pump & Thermal Oil Pump

Key Specifications
Max Flow Rate 150lpm
Max Head 150M
Max Temperature 200°C
Max Viscosity 1600 cP
Solids 0mm
Sizes 3/8" to 1 1/2"
Datasheet
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The GAR range of Internal Eccentric Gear Pumps has been designed for the pumping of low to high viscosity fluids with lubricating properties. This range of internal gear pumps has options available for both with and without an external bypass relief valve, and for an external heating jacket which helps to maintain the temperature of the product being pumped. The clearance between the gears is quite tight and therefore means that these pumps aren't made for pumping fluids containing abrasive particles. Popular applications for these internal gear pumps include diesel fuel transfer, fuel oil transfer, coolant transfer, hot oil circulation, OEM, food industry, marine, detergent industry and lubrication.

Our gear pump guide offers detailed information on how they operate and where they are typically used.

  • Internal eccentric gear pump
  • Designed for low pressure applications
  • Compact design
  • Reliable construction thanks to only two moving parts
  • Various material options
  • Available with external bypass, jacketed cover and blind covered
  • 230v, three phase 50/60hz motors available
  • Manufactured according to CE regulations
  • Explosion proof ATEX rated motors and non-sparking flexible couplings are available

Key Benefits:

     


CAST
IRON		STEEL 
CAST		SPHEROIDAL 
CAST IRON		SNBZ 12
BRONZE		CARBON
GRAPHITE		SLICON
CARBIDE		HARD METAL
COATED STEEL		LIP
SEAL
PUMP BODY & COVERSXX
GEARSXXX
BEARINGS

XXXX
SEALING
X

FAQs

Gear pumps operate by an unchanging volume of fluid passing between the teeth of two meshing gears and their casing at a constant rate (not between the gears themselves). As the gears rotate and the meshed teeth separate, a partial vacuum is formed that fills with fluid, which they trap and move it around the casing from the suction to the discharge point.

The pumping of high viscosity lubricating fluids such as oils, fuels, paints, soaps and resins. The pumping of low viscosity fluids should be avoided as they can cause fluid to leak backwards or "slip" back to the suction side.

An internal gear pump operates a "gear within a gear" principle, whereby one gear (the idler) is positioned inside another gear (the rotor).

Whilst external gear pumps offer higher pressure and flow rates, internal gear pumps generally have better suction capabilities and are able to handle higher temperature, higher viscosity fluids. Internal gear pumps slower speeds and larger clearances also makes them more suitable for shear sensitive fluids

Yes. Gear pumps have excellent self-priming capabilities thanks to their rotating gears evacuating any air in the suction line, and forcing the liquid into the pump inlet.

The close tolerances between the gears and casing mean that pumping solids will result in wear and damage. Some internal gear pump designs which have less tight tolerances and slower speeds however may be able to tolerate small solids.

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