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Solutions in brass for fluids

More than 75 years of experience in the sector of brass water and gas fitting manufacturing act.

Who We Are rrmmcia, we are a brass fitting manufacturer, for gas and water, with an extensive experience.
Vision and Values Our work philosophy is to take care of our clients and offer them the best product and service.
Quality We are committed to continuous innovation applied not only in product design but also in production processes.
Brass Ideal for fittings due to its properties: resistance to corrosion, extreme temperatures, and inhibitor of microorganisms.

What to know about rmmcia

We do put at your disposal a wide range of product, standard and customized, always with the highest quality service.

CUSTOMIZED projects

Our production resources at your needs’ disposal.

FAQ ask us

We do answer your doubts and more frequent enquiries.

CATALOG download

Discover the wide range of standard product we offer.

Products rmmcia

For manufacturing our brass accessories we use the highest certified quality brass.

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  • Brass Threaded Fittings

    The rmmcia family of brass threaded fittings provides a comprehensive range of accessories, including unions, changes of direction (bends, elbows), branches (tees), bushings, extensions, plugs,...

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  • Fittings for Pex and Manifolds

    For your heating and plumbing installations with PEX tube rmmcia has prepared the family of compression fittings for PEX and manifolds. A complete range of connection fittings including changes of...

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  • Compression Fittings for Multilayer Pipe and Manifolds

    For your heating and plumbing installations with multilayer tube rmmcia has prepared the family of compression fittings for multilayer pipe. A complete range of connection fittings including changes...

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  • End Feed Fittings for Copper Tube

    rmmcia offers the family of end feed fittings for copper tube to satisfy your needs in installations of copper tube with capillary soldering. An assortment of threading - soldering accessories for...

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News rmmcia

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See more Renewal of water meters (2025)

November 28, 2023

Renewal of water meters (2025)

On 24th of October 2023 it’s been three years since the enforcement of order ICT/155/2020, of February 7th, which regulates in Spain the State's metrological control of certain measuring...

See more Winter holidays 2023-2024

November 14, 2023

Winter holidays 2023-2024

rmmcia will be closed for winter holidays from December 25th 2023 to January 5th 2024. We will resume working on the 8th and shipments will start in January 9th. We'd like to indicate also we close in...

See more New! Under pressure drilling connector

October 24, 2023

New! Under pressure drilling connector

In 2023, at rmmcia, we have begun the manufacturing a new brass fitting, patented, designed to solve a common issue when making quick and easy branch connection in polyethylene pipes without...