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Helical External Gear Pumps

Helical External Gear Pump
Helical External Gear Pump

Helical External Gear Pumps

ATEX icon ISO icon CE icon EN10204 icon

The Helical External Gear Pump is designed for medium and high-pressure transfer applications, with versatile uses in industrial settings. This pump features a horizontal shaft that transmits circular movement to the opposite gear. As the gears separate, liquid is drawn in to fill the space between them. When the gears move closer together, this liquid is moved with a rotary motion towards the pump outlet. With a capacity for pressures up to 20 Bar (depending on the liquid viscosity), this pump excels in situations requiring uninterrupted flow for less viscous and medium-pressure applications.

  • Speeds ranging from 50 to 1500 RPM
  • Precise transfer & metering applications involving polymers, fuels & chemical additives
  • Shaft support on both sides of the gears
  • ATEX-rating available for use in hazardous environments

Max. Flow:

Max. Head:

Max. Temp:

Material:

250m³/hr

150m

200°C

Metal

ATEX icon ISO icon CE icon EN10204 icon

The Helical Gear Pump Range has a compact robust design with many beneficial features including:

  • Shaft support on both sides of the gears
  • Pressures up to 300 meters
  • Wide speed range, up to 50-1500 rpm
  • Often used as lubrication pumps in machine tools, in fluid power transfer units, and as oil pumps in engines.
  • Precise transfer and metering applications involving polymers, fuels, and chemical additives.
  • Can be fitted with Heating Jackets to maintain fluid temperature
  • By Pass/ Pressure Relief Valve can be installed to protect the pump from over-pressurisation

How does a Helical External Gear Pump work?

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

The Helical External Gear Pump is ideal predominantly for industrial applications such as:

  • Petroleum
  • Fuel
  • High volume transfer

It is also suitable for transferring molasses.

Connection Sizes: 2” – 10”
Capacity Range: 1 – 320 m³/hr
Pressure Range: 10 – 150 meters
Temperature Range: up to 200ºC
Speed Range: 50 – 1500 rpm
Viscosity Range: 20 – 55’000 cPs

Pump Body & Cover: 

Cast Iron

Ductile Cast Iron

Cast Steel

Stainless Steel AISI 304/316

Gears: 

Cast Iron

Ductile Cast Iron

Cast Steel

Stainless Steel AISI 304/316

Bearings: 

SnBz12 Bronze

Carbon Graphite

Ina Bushing Bearings

Sealing: 

Soft Seal / Packed Gland

Mechanical Seal

Largest UK Stock

Same Day Quote

Fastest Delivery

Largest UK Stock

Same Day Quote

Fastest Delivery

Looking for more information about the services offered by Tapflo UK?

Our friendly team at Tapflo UK would be more than happy to assist you further with any pump solutions, delivery information or questions you have. If you need additional support on-site, you can speak to a member of the team today to organise a site visit.

Give us a call now:

02380 252 325

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