lead forensics image
Modular External Gear Pump
A picture of our Modular External Gear Pump
Modular External Gear Pump Parts
A picture of the internal parts of our Modular External Gear Pump
A picture of our Modular External Gear Pump
External
A picture of the internal parts of our Modular External Gear Pump
Parts
See Technical Data |
Model Max Capacity (m³/hr) Viscosity Range (cSt)
YMD ¾ 1.4 10 – 550
YMD 1 2.5 10 – 550
YMD 1½ 7.7 10 – 550
YMDY 1 3 10 – 550
YMDY 2 7 10 – 550

Modular External Gear Pump

Our Modular External Gear Pump is a robust and efficient pumping solution designed for the Oil, Chemical & Gas industries. This pump consists of two meshing external gears supported on separate shafts with bearings on both sides. They have efficient high-pressure & suction lift capabilities, and pulse-free flows ensure smooth and accurate performance. Additionally, these pumps are ATEX-approved for use in hazardous environments.

Typical applications for our Modular External Gear Pump:

  • Hydraulic power systems: Vehicles, Mobile Equipment, Lifts
  • Fuel: Oil, Gas Oil, Diesel-Fuel Tanks & Transfer in low volumes
  • Lubrication: Oil circulation in Engines & Gearboxes
  • Chemical: Polymers, Resins, Solvents, Aggressive Liquids
Overview

How does a Modular External Gear Pump work?

The pump features a horizontal shaft, 180° port position and has 2 external gears.

The pump shaft operates, moving the gears which draws liquid into the port. The liquid fills the space between the gears and moves towards the outlet of the pump as the shafts turn.

By-Pass/Pressure Relief Valve Operation:

The intended purpose of a By-Pass or Pressure Relief Valve (PRV) is to ensure that the pump and drive unit are protected from unnecessary damage that may be incurred during over-pressurisation which is mainly caused by closed valve operation or blockages in the discharge line. By-Passes can be either installed on the pipework and route fluid back to the suction of the pump or tank, in the form of a By-Pass Circuit, or indeed installed directly on the pump head, as detailed below.

The By-Pass, when opened, relieves excess fluid and pressure from the discharge section of the pump to the suction side and effectively allow the pump to recirculate within itself until the blockage in the line has been cleared or closed valve opened to allow the process medium to carry on through the system and drop the pressure in the line to an acceptable level for the installed equipment.

As By-Passes are spring-loaded and adjustable, they can be tweaked in situ to cater for changing system or pump requirements.

Features & Benefits

External Gear Pumps come with many benefits, some of which include:

  • Accurate and smooth pulse-free flow at high differential pressures (up to 30 bar)
  • Ability to pump fluids too viscous for Centrifugal Pumps
  • Compact, robust and cost-effective with a simple design and few moving parts
  • Self-priming with good dry-lift capabilities
  • Can be run bi-directionally
  • ATEX available for use in hazardous environments
Specifications
Max Capacity (m³/hr) 7,7m³/hr
Max Pressure (m) 300m
Viscosity (cSt) up to 550 cSt
Max Speed (rpm) 1500 rpm
Max Temperature (°C) 100°C
Materials & Limits
Connection Sizes ¾” – 2”
Capacity Range 1 – 7.7 m³/hr
Pressure Range 10 – 300m
Temperature Range up to 100ºC
Speed Range 50 – 1500 rpm
Viscosity Range 20 – 550 cSt
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

 

Sizes Available:

Model Max Capacity (m³/hr) Max Pressure (Bar) Viscosity Range (cSt) Max Speed (rpm) Max Temperature (°C)
YMD ¾ 1.4 30 10 – 550 1500 100
YMD 1 2.5 30 10 – 550 1500 100
YMD 1½ 7.7 30 10 – 550 1500 100
YMDY 1 3 12 10 – 550 1500 70
YMDY 2 7 12 10 – 550 1500 70