Cat Pumps Supplies Super Duplex Pressure Regulator Valve

29.04.2015

Cat Pumps supplied the valve to the Wolverhampton-based company Ovivo UK Ltd. Ovivo called on the resources of Cat Pumps when they were awarded the contract by a leading international oil producer to supply the Fresh Water Maker Package for two projects located in the West of Shetland area of the UK Continental Shelf. The packages use the reverse osmosis process to produce fresh water from seawater.

Cat Pumps Supplies Super Duplex Pressure Regulator Valve

Cross-section of Cat Pumps super duplex pressure relief valve (Image: Cat Pumps)

The RO package being supplied by Ovivo requires a pressure regulator to act as a back-pressure valve, which regulates the system pressure allowing reverse osmosis to occur. The Cat Pumps pressure regulator is designed to a maximum set pressure of 70Bar (1000psi) and allows for a flow rate of up to 160l/min (9.6 m3/hr). The Super Duplex components make up the wetted parts of the valve. The selection of this material as well as the design provides excellent resistance to the salt water and gives increased working life to the valve.

Adjustable spring loading allows for smooth operation and maintains close control of the working pressure. The valve is easily serviceable as it does not need to be disconnected from the pipework to access the working parts. The piston seat and Viton O-rings are replaceable as individual parts or as a repair kit.

Space and weight restrictions meant that a conventional control valve was not a viable option. Cat Pumps has supplied Ovivo with similar pressure regulating valves on many occasions in the past, but not with the demanding test and certification requirements necessary to meet the client’s specifications.

The remote location and harsh operating environment mean that safe and reliable operation of all components for the life of the package is of paramount importance. To ensure this is the case, Ovivo’s client require all Super Duplex materials to be sourced from approved suppliers, in accordance with their specifications defining material testing requirements, chemical analysis and mechanical properties superior to the normal international standards for this material. These requirements are similar to the Norwegian Standards NORSOK M-630 and M-650.

Cat pumps successfully supplied the valves in accordance with all the standard and specifications required by Ovivo’s customer.

More articles on this topic

Patented Sealing Solution to Improve Drinking Water

14.08.2023 -

In appliances used for water purification and carbonated water, the valve of a carbon dioxide cartridge and the pressure-reducing valve on the device itself must be joined with a secure seal. Now, Freudenberg Sealing Technologies has developed a patented, high-performance polyurethane seal for a customer that has a specific geometry that not only accommodates different valve dimensions on the various gas cartridges, but also offers high impermeability under long-lasting pressure.

Read more

ITT Engineered Valves Announces New Cam-Tite Ball Valve GV Series

16.05.2023 -

ITT Inc.’s Engineered Valves announced the launch of the Cam-Tite Ball Valve GV Series, an innovative valve solution designed as a direct dimensional and upgraded replacement for severe service applications. The GV Series utilizes advanced sealing technology to isolate and contain highly hazardous liquids and gases to protect the safety of operators and prevent fugitive emissions.

Read more