Protec Arisawa is the global leader for the design and the manufacturing of Fiber Reinforced Plastic Pressure Vessels for membrane filtration systems.
With three production sites located on three different continents and over 50 years of experience in filament winding, Protec Arisawa is your supplier of choice when it comes to selecting high-quality pressure vessels with leading technology.

We are Protec Arisawa, belonging to Arisawa group, world leaders in the design and manufacture of Pressure Vessels. Our principal objective is, satisfy our customers needs with excellent quality in product and service, offering competitive, personalized and innovative solutions. We will achieve this working as a team in a flexible and organized way. We will build on our experience our «Know How» and our technology.
Becoming the reference unquestionable supplier/partner, with high technological qualification to be considered the first purchase option. For us, the concept of «partner«, raise the concept of «provider» What we want is to turn into trusted partners of our clients.
We are a committed team, we dedicate ourselves with enthusiasm and responsibility to our work. We have the feeling of belonging to the company and we believe in team work, helping each other, we share objectives and respect all opinions. We will try to improve and although we are aware of our knowledge we will always maintain an open attitude to learn. Flexibility and transparency in communication are essential values in Protec Arisawa.
We have been in the composite business since 1971 and almost since the very beginning, our founding, our managing team considered the world as our natural market. Our history has been as part of a multinational corporation, before with Bekaert and now with Arisawa Manufacturing Company. This history has given us a clear international edge. Our multilingual team, strategically placed around the world, is ready to listen and respond to your unique project demands. Wherever your project is located, do not worry, we have already been there.
With our regional fabrication facilities in California, Spain, and Japan, we can deliver faster than other suppliers, regardless of vessel length, pressure, or port configuration. As a total solution provider, you can count on our sales network for optimizing your product and providing support from concept to start-up, in addition to vessel service throughout the life of a system.
At Protec Arisawa are not producing vessels to rest on a shelf waiting for a buyer. We design, create, and produce our products in real time, matching your exact order requirements in every moment. We are so sure of our flexibility and reactiveness that we do not have standard vessel models. We have a complete array of options and different alternatives to offer you in record time for the vessel you really need, fitting the system you have designed.
Protec recognizes that the water treatment market is continuously subject to cost-cutting efforts and reducing capital expenditure. Protec Arisawa directs a good deal of its R&D effort and budget to finding better and more optimal ways to operate our vessels. Not only do our vessels have the best quality-price ratio in the market, but they have the lowest maintenance cost, in terms of time consuming and budget required.
Protec Arisawa is usually part of our customers and partners project design process, to define systems with a clear calling on multiple-port configurations. This design approach allows a much more optimal space usage, allowing complete installations to be built in smaller and compact ways. Multi-port system design results in a far lower number of collectors and couplings, overall reducing piping cost.