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Modular External Gear Pumps

The Modular External Gear Pumps are similar in operation to the Internal Eccentric Gear Pump, with only 2 moving components within the process medium. This range is ideally suited for Oil and Gas industries that require a robust pump for their application.

Applications

Yildiz range of Modular External Gear Pumps is ideal for the following applications and industries:

Fuel Oil, Gase Oil, Diesel-fuel tanks
Hot oil circulations (small scale)
Semi-viscous fluids
Dye Industry
Ship Sector

Operating Principle of Yildiz Modular External Gear Pumps

Fluid entering the pump: The process medium enters the pump suction port, pump casing & fills the cavities between Gears. The 3 arrows indicate the direction of fluid passage through the pump and rotational direction of the gears.

Fluid filling the cavities between the teeth of the gears & casing: As the fluid progresses through the pump head and fills the cavities between the gears it is carried around the outside of the gears filling the casing at the top and bottom.

The pump is flooded & starts to discharge the process medium under pressure: Once the pump is fully flooded, the driving gear (top) and driven gear (bottom) form a liquid seal thanks to their intermeshing teeth, which then enables the fluid to exit the discharge of the pump under pressure. The delivery pressure is dependent on the installed power of the motor.

Technical Information

Max Flow	7,7m³/hr
Max Pressure	30 Bar
Viscosity Range	10 – 5,50 cSt
Max Speed	1500 rpm
Max Temp	100ºC

Materials and Limits

Connection Sizes	¾” – 2”
Capacity Range	1 – 7 m³/hr
Pressure Range	1 – 30 Bar
Temperature Range	up to 100ºC
Speed Range	50 – 1500 rpm
Viscosity Range	20 – 550 cPs
Pump Body & Cover	Cast Iron Cast Steel Stainless Steel AISI 304/316
Gears	Steel Stainless Steel AISI 304/316
Bearings	SnBz12 Bronze Carbon Graphite Ina Bushing Bearings
Sealing	Soft Seal / Packed Gland Lip Seal Mechanical Seal

About Tapflo

Tapflo Group is an independent, family-owned, European manufacturer and global supplier of Industrial Pumps that has been operating for 40 years.

We are a leading manufacturer of Air Operated Diaphragm Pumps, Centrifugal Pumps and other industrial process equipment, operating across 75 countries.

Tapflo UK has been operating since 1998, now working nationally with end-users and pump distributors. We offer a wide pump portfolio to the UK for almost any application and installation, including bespoke pumping systems designed by our in-house Engineering Team.