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Solutions in brass for fluids

More than 80 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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  • 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

See our posts
See more From bathtub to walk-in shower with multilayer

April 2, 2025

From bathtub to walk-in shower with multilayer

Replacing a bathtub with a walk-in shower using multilayer fittings At rmmcia we present a video-tutorial with a practical application of multilayer fittings for replacing a bathtub with a walk-in...

See more Renewal of Gas Meters and Volumetric Conversion Devices (2025-2028)

January 14, 2025

Renewal of Gas Meters and Volumetric Conversion Devices (2025-2028)

With the implementation of Order ICT/155/2020, dated 7 February, which regulates the metrological control of certain measuring instruments in service in Spain, we previously explained how it impacted...

See more Installation of Drilling Connector for PE pipe

February 9, 2024

Installation of Drilling Connector for PE pipe

We introduce the new video tutorial for installation of the patented product by rmmcia, the drilling connector for branch in polyethylene pipe under pressure. (with English subtitles) The drilling...