Northern Heavy Duty High Pressure Gear Pumps have enjoyed a long history in the Oil and Gas Industry. The rugged design and adaptability of the 4000 series gear pump allows us to efficiently pump crude oil and other hydrocarbons. Northern Pumps are extremely efficient with both high and low viscosities. Our all steel housing is a key design feature that allows our customers to operate safely at discharge pressures up to 2000 PSI. Our ability to set internal clearance in each pump allows for superior volumetric efficiency.

Current applications:

• Transport and Metering of Crude Oil and Other Hydrocarbons

• Refineries

• Offshore Oil Platforms

• Pipelines

• Other Industrial Facilities Around the World

Key Advantages:

• Solid Reputation in the Bakken, Niobrara, Eagleford and Other Major Shale Plays

• Ability to Handle High Inlet Pressures

• Very Small Footprint Equals Huge Space Savings in LACTs and Skids

• All Steel Construction Equals Long Life and FAST ROI

GEARS

Carburized 8620 alloy steel is our standard material of construction for most applications, 440-C stainless steel is available for corro­sive applications, and nitrided steel is available for high tempera­ture applications. Other materials are available depending on the application requirements. Pump gear configurations are helical, spur, or herringbone. All gears are grnund after heat treating to achieve a precision gear tooth form. Extreme hardness offers greater resistance to we.ar when pumping fluids with low lubricity. Helical gear configuration assures smooth, quiet performance.

SHAFTS

Carburized 8620 alloy steel, 440-C stainless steel, or nitrided steel, hardened and ground. Through-shaft available for hydraulic balanc­ing of high inlet pressures, or for driving a second pump.

BEARINGS

Large, full complement, roller-type bearings high load capacity. Optional sleeve bearings are availablle in carbon graphite, tungsten carbide, bronze, and other special materials.

MECHANICAL SEALS

Several mechanical seal and packing configurations are available for inlet conditions of 27 inches of Mercury vacuum to 1200 PSI. Seal configurations are determined based upon individual pumping applications and customer needs.

PLATES

The pump housing is a modular design with each of the plates having mated surfaces precision ground to seal without convention­al gaskets. The components are typically made of steel, cast iron, ductile iron, tool steel, tungsten carbide, stainless steel, and bronze in multiple configurations.

CYLINDER

Ductile iron cylinder is standard. When an all-steel housing is re­quired, a steel cylinder with cast iron liner is furnished.

SUCTION AND DISCHARGE PORTS

Inlet and discharge connections are available to include but not lim­ited to: bolt-on sanitary flanges, NPT ports, cast flanges, welded steel flanges of which are all typically located on the sides of the cylinder or seal adapter plates.

MOUNTING BRACKETS

Angle brackets are standard.