1370 Logan Ave, Ste K, Costa Mesa, CA 92626


Protect the Environment by Eliminating Harmful HVAC Leaks and Emissions

45 Degree HVAC Flare Gasket

They conform to ASE Standard J513_201912, “Refrigeration Tube Fittings – General Specifications” for general use with flared annealed copper tubing in refrigeration applications.

Commercial and Residential HVAC Applications

SECO SEALS Inc. Releases SECO45 for HVAC Applications:

Adding Aerospace Technology to Your HVAC Toolbox COSTA MESA, Calif. — SECO SEALS Inc., a world leader in the specialty manufacturing of high-pressure tube fitting gaskets, has put an end to leaks since 1969.

Our technology prevents and eliminates leaks caused by the mechanical failure of connections between fittings for fluids and gases. With the release of our innovative SECO45 gaskets, we are successfully extending our aerospace technology and high-quality products to the HVAC community. “This is exciting because the new product line of 45-degree flare tube gaskets empowers installers, repair shops, and manufacturers to provide 100% leak-proof connections!” Jim Scott, senior engineer and president, leads the evolution of SECO’s 50-plus years of experience in sealing high-pressure critical applications to expand into a new industry — HVAC. “Not only will the SECO45 decrease the number of service calls and after-installs, but it will also reduce the frustrations and time that come with them.”

Leaks can be dangerous and expensive to fix. They are also harmful to the environment. So, being able to reduce systemic failures on entire cooling systems is a win for the HVAC world. SECO45 protects against vibration, thermal expansion, and contraction of the fitting; therefore, bringing a superior performance in pressure and corrosion resistance. In addition, SECO45 seals can help prevent galvanic coupling due to mismatched metals. Scott shared, “SECO45 gaskets won’t fail or wear out like rubber O-rings or polymer gaskets.” Sealing the most common connection in HVAC Freon tube fittings, SECO45 gaskets can seal helium gas to 10x⁻⁷, and they come in copper. They are available with tin plating.

Contact Us or Place an Order

For more information or to place an order, please contact Jim Scott or Chris DeSandro.

There are two ways to either purchase, place an order, or submit an RFI/RFQ for SECO45 – 45 degree flare tube gaskets. If you already know what you need, order SECO45C and SECO45CT – 45 degree flare gaskets on our Amazon Store below.

Available Sizes

SECO45C gaskets are available in the sizes indicated in the table below.

Nominal Tube ODCopperCopper – Tin Plated
Click on a part number above to order on

Additional SECO45 Technical Information

For detailed technical information on our SECO45 product line. You can either view the SECO45 engineering drawings online or download a PDF of them.

About SECO SEALS, Inc.

SECO SEALS, Inc. is headquartered in Costa Mesa, California — we have sealed millions of high-pressure flare tube fitting connections for aerospace, automotive, and marine applications since 1969. We are an ISO 9001: 2015 and AS9100D certified gasket manufacturer. As a world leader in specialty manufacturing of high-pressure tube fitting gaskets, including our industry standard SECO7 “37-Degree Flared-Tube-Fitting Conical Seals” product line, SECO SEALS has put an end to leaks in most environments affordably and dependably. Our commercial and government entity (CAGE) code is 33447 and the export control classification number (ECCN) is 9.A991.d.

Call or Fax for Information

Phone: +1 714.546.3478
Fax: +1 714.546.3106


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