API Pumps for the Oil, Gas, and Process Industries

Norditec supplies process pumps for the oil and gas, offshore, refining, petrochemical, and chemical processing industries where a specific API standard is required for the project. An API pump is not a single pump type: API 610 applies to centrifugal pumps, API 674 to piston pumps, API 675 to positive displacement metering pumps, API 676 to rotary positive displacement pumps such as screw pumps, and API 685 to seal-less centrifugal pumps.

Here you’ll find which pump family is suitable for your operation, how to proceed, and what process data we need to provide a technical quote. The standard and edition according to which each pump series is supplied are listed on the product page and in the manufacturer’s documentation.

Go directly to the standard

Do you already know which standard the project requires?

Why Choose Norditec?

Pump Families

Centrifugal, piston, metering, screw, and magnetically driven pumps in accordance with API 610, 674, 675, 676, and 685.

Industries

Oil and gas, offshore, refining, petrochemicals, and chemical processing.

Packages

API 610 pump skid and MEG injection package, with scope to be determined on a project-by-project basis.

Norwegian supplier

Technical consulting in Norwegian from Oslo, from selecting standards to preparing proposals.

Find the Right API Pump Standard

The standard specified in the project specifications generally determines the pump design. The overview shows what each standard covers at the category level. The cards below provide further details on the pumps we supply within each family.

STANDARD	PUMP FAMILY	TYPICAL USE	LEARN MORE
API 610	Centrifugal pumps	Process fluids in petroleum, petrochemicals, and natural gas where the project requires API 610 design	API 610 centrifugal pumps
API 674	Piston pumps (reciprocating positive displacement)	High-pressure tasks such as water and chemical injection	API 674 piston pumps
API 675	Controlled-volume dosing pumps	Chemical injection where the volume must be controlled and adjusted	API 675 dosing pumps
API 676	Rotary positive displacement pumps	Viscous and lubricating media, such as oils and hydrocarbons	API 676 twin screw pumps
API 685	Sealless centrifugal pumps	Media where leakage via shaft seal must be avoided	API 685 magnetic drive pumps

Do you need an API pump for your application?

Send us your requirements—and we'll help you find the right process pump.

API Pump Families at Norditec

Each card describes the pump family, the standard it complies with, the applications it is designed for, and where to find more details. Performance data and material specifications are listed on the product pages.

API 610 OH2 Pumps

Peristaltic pumps provide reliable and efficient fluid transfer for various industrial and commercial applications, ensuring gentle handling, durability, and precision in every application.

API 674 – Piston Pumps

Reciprocating pumps for very high pressure and large fluid volumes in process, oil, and gas facilities.

API 675 – Metering Pumps

Precision dosing pumps for chemical dosing in water treatment, process, and chemical industries.

API 676 Twin Screw Pump

Ideal for handling viscous fluids with low noise and minimal pulsation. Perfect for crude oil transport and chemical processing.

API 685 Magnetic Drive Pump

These pumps are specially designed to completely eliminate leaks by using magnetic drive instead of a traditional shaft seal.

Which API pump is right for the application?

Are you familiar with the operation but not the standard? Start with the substrate and printing conditions. The tables below provide an initial classification. The final selection always depends on the process data and the customer’s specifications.

OPERATING CONDITIONS AND REQUIREMENTS	RECOMMENDED PUMP	STANDARD
Large volume flow, low to moderate viscosity, continuous operation	Centrifugal pump according to API 610	API 610
High differential pressure and relatively small volume flow	Piston pump according to API 674	API 674
Chemicals to be added in a specific, adjustable amount	Dosing pump according to API 675	API 675
Viscous or lubricating media, need for steady flow	Screw pump according to API 676	API 676
Hazardous or expensive media where a shaft seal is a risk	Sealless pump according to API 685	API 685

We consider this before recommending a pump

We do not list general performance limits on this page, as they depend on the pump series, size, and materials. Send us your operating data, and we will determine which family and series are suitable.

Medium and Composition

What is being pumped, including the content of gas, water, or chemicals

Volume flow

Normal, Minimum, and Maximum

Pressure and Lift Height

Suction pressure, discharge pressure, and differential pressure

Temperature

Operating and Design Temperature

Viscosity and Density

At operating temperature

Vapor Pressure and NPSH

Available NPSH at the installation

Particles and solids

Quantity and size, where applicable

Corrosion and Materials

Requirements for material selection, such as NACE

Dosage

Required accuracy and control range

Seal

Mechanical seal, sealing system, or seal-less

Operating Mode

Continuous or periodic

Area Classification

Potentially explosive area, ATEX/Ex requirements

Standards and Specifications

API standard, version, and customer specification

Package Contents

Skids, Instrumentation, and Control

Industries and Applications

API pumps are selected when the process and specifications require them, not simply because the industry is oil and gas. This is what the typical need looks like in the industries we serve.

Oil and Gas

Process pumping, water and chemical injection, transfer, and pump packages where the operator or EPC contract specifies an API standard.

Offshore

Compact pumps and pump packages where space, weight, corrosive environments, and project specifications determine the choice. Requirements such as NORSOK or the operator’s own standards are clarified on a project-by-project basis.

Refining and Petrochemicals

Hydrocarbons, LPG, amines, and hot process media where standardized pump design, testing, and documentation are required by the specifications.

Chemical Process

Pumping and injecting acids, solvents, and corrosive media, where the choice of materials and sealing solution is more critical than the pump type itself.

Process Plants and Energy

Boiler water, condensate, and other process fluids in plants designed according to API specifications. If you do not need an API-compliant model, you can find industrial pumps under “Pumps.”

Pump Packages and Systems

Some projects require more than one pump. The scope of a package is always agreed upon on a project-by-project basis and is specified in the quote.

MEG Chemical Injection Kit

Dosing pumps and related equipment for the injection of monoethylene glycol (MEG). The contents, scope, and configuration are tailored to each individual project. See the dedicated package page for details.

API 610 Pump Skid/Pump Package

A project-specific pump skid or pump package may include a pump and other documented components, depending on the agreed scope of delivery. The contents of the package must be specified for each individual project.

What does the API standard mean for pumps?

API standards are published by the American Petroleum Institute and specify requirements for the design, materials, testing, and documentation of equipment used in the petroleum, petrochemical, and natural gas industries. For pumps, there is one standard for each type of pump.

API 610, 674, 675, 676, and 685 cover different pump principles and applications. A higher or lower standard number does not indicate higher or lower quality.

An API pump is therefore not a specific design. Standards come in different editions, and the buyer may add to or deviate from the requirements in the data sheet and project specifications. Whether a pump is supplied in accordance with a standard—and which edition—is documented by the manufacturer for each series.

Technical Consulting in Norwegian

Help with reading the specifications and selecting the standard, family, and series.

Five API families from a single vendor

Centrifugal, piston, metering, screw, and magnetically driven pumps.

Norwegian supplier in Oslo

A short path to follow-up throughout the project.

Request a technical quote for an API pump

The more complete the data is, the more accurately we can determine the pump family and series. If you have an API data sheet or a project specification, please feel free to attach it.

Frequently Asked Questions About API Pumps

What is an API pump?

An API pump is a pump designed, tested, and documented in accordance with a standard from the American Petroleum Institute. There are several pump standards—one for each pumping principle—so “API pump” does not refer to any specific type of pump. The applicable standard is usually specified in the project specifications.

What is the difference between API 610, API 674, API 675, API 676, and API 685?

The standards cover various pump principles: API 610 centrifugal pumps, API 674 reciprocating piston pumps, API 675 positive-displacement metering pumps, API 676 rotary positive-displacement pumps such as screw pumps, and API 685 seal-less centrifugal pumps. Each standard has its own requirements, so they are not interchangeable. See the cards above to see which pumps we supply under each standard.

What API pumps does Norditec supply?

We supply API 610 centrifugal pumps in OH1, OH2, and OH3 configurations, API 674 piston pumps, API 675 metering pumps, API 676 twin-screw pumps, and API 685 magnetically driven pumps, as well as API 610 pump skid packages and MEG injection packages. The standard and version for each series are listed on the product page.

Which API pump is right for my application?

It depends on the medium, flow rate, pressure, temperature, viscosity, and the standard required by the specification. As a general rule of thumb, centrifugal pumps are suitable for large volumes, piston pumps for high pressure, metering pumps for chemical dosing, screw pumps for viscous fluids, and seal-less pumps where shaft seals pose a risk. Send us the operating data, and we’ll recommend a pump.

Can Norditec supply API pumps as pump skids or pump packages?

The scope of the package depends on the project. We supply skids and packages whose contents are defined and agreed upon specifically for each project.

What information does Norditec need to provide a quote for an API pump?

We need information on the medium, flow rate, pressure or lift height, temperature, viscosity, material requirements, the required API standard, and any requirements regarding seals, hazardous areas, and package contents. A completed API data sheet is the best starting point. See the checklist above the quote form.

Mixers

Plate Heat Exchangers

API Pumps for the Oil, Gas, and Process Industries