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Pentair Codeline  corporate story

codeline at a glance

Codeline is the leading pressure vessel brand and recognized for its high quality, smart product portfolio and market changing innovations such as the Quick Lock and OCTA. Codeline is a brand of Pentair, the global water, fluid, thermal management, and equipment protection partner. Pentair addresses some of the world’s most pressing problems related to food, water and energy with innovative products, services and technologies.

Our pressure vessels have been setting industry standards ever since the 1970s, when seawater desalination with reverse osmosis (RO) membrane technology first became a viable alternative to traditional (thermal) methods. Today we serve a wide range of industries, including Oil & Gas, Food & Beverage, Pharma, Electronics, power generation, and wastewater treatment.  

With Codeline, Pentair has been at the forefront of every major development in membrane housing technology. We pioneered the filament-wound fiber-reinforced plastic (FRP) vessels that dominate the industry today. Resulting in the largest installed base numbers in the field. Continuous research & development supports our leading position and the competitive advantages our customers can achieve in terms of reliability, durability, and total cost of ownership. 

The exploding worldwide demand for desalination technology has attracted all kinds of vessel suppliers. However, the production of drinking water is a serious business, and a pressure vessel is not a commodity.  Major incidents with poorly designed copies have demonstrated the need for rigorous quality control, full adherence to the certification standards ASME, ISO 9001, NSF-61, and DWI, as well as independent third-party inspection. Codeline is the first manufacturer to conform to the American National Standard for safe vessel construction, the ASME Boiler and Pressure Vessel code.

Our contributions to a thriving industry go far beyond perfectly smooth and fail-safe shells. We make the case for enduring performance with frequent innovations that make a real difference in demanding applications. Cases in point are our threaded side-ports that facilitate easy repairs and replacements, and the OCTA technology that finally made flat sealings in circular vessels a reality. 

Pentair is committed to your success. As the world’s leading manufacturer and most trusted name in membrane vessels, we can help you to maximize the performance of your water treatment and purification systems. With Codeline technology being used on every continent, and well over 600,000 membrane housings currently in service, we have a track record to be proud of.  Our tradition of excellence is the result of a relentless focus on practical and economical progress. It has earned us a reputation of quality and reliability, and the trust of many long-term clients. Everyone at Pentair is proud to work on sustainable solutions in a changing world.

Codeline. The global standard in pressure vessels.

Download our Pentair Codeline brochure.

If you have any questions, please contact us.


Pentair X-Flow - The history of Codeline
Pentair Codeline - R and D

research & development


Pentair Codeline -  innovations
Pentair Codeline - Installations worldwide

installations worldwide

vision on ro

Pentair Codeline vision on RO
Pentair Codeline -  About pressure vessels

About pressure vessels