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JACO Manufacturing Company

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JACO Manufacturing Company


JACO fittings are used with all types of tubing and are typically less expensive and more resistant to chemicals and corrosion than metal fittings.

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Who is JACO?

JACO is known for its ingenuity in plastic fitting design. JACO compression fittings are either made of nylon, acetal copolymer, polypropylene, or kynar (PVDF). Most common JACO fittings include unions, bulkheads, connectors, and tees from 1/8” to 7/8” sizes.

What makes JACO fittings unique?

To ensure high-quality construction, JACO uses high-tech production, in-house mold design, and tooling. Unlike original fittings, JACO’s metal compression fittings with a ferrule nut don’t require attaching two separate pieces.

Benefits of JACO Fittings:

  • • Electrical insulation
  • • Mechanical vibration absorption
  • • Low resistance to flow
  • • Resistance to scale buildup

JACO Fitting Materials:

Acetal fittings: shiny white

JACO acetal fittings are highly flexible to provide good impact resistance in broad temperature ranges. Acetal is FDA, USDA, and NSF listed for coffee, milk, and antibiotics. Keep acetal fittings out of sunlight and do not use them with acids.

Temperature ranges: -40° F to 200° F in open air environments and 180° F in water applications

Polypropylene fittings: solid white

JACO polypropylene fittings are resistant to chemicals, acids, and bases, as well as stress cracking. These fittings should not be used with oxidants and strong acids or placed continuous sunlight. Polypropylene is lightweight and extremely valuable for water purification. The polypropylene is 20% glass for improved stiffness.

Temperature range: -30°F to 225°F

Kynar fittings: semi-translucent white

JACO Kynar or PVDF fittings are twice as strong as PVC. They provide excellent durability and abrasion, chemical, and fire resistance. PVDF is non-toxic and safe for use with food, but it is not to be used with fuming sulfuric acid, concentrated alkalis, hot bases, or bases with a pH less than 12.

Temperature range: -40°F to 250°F

Nylon fittings: off-white or pale grey

JACO nylon fittings are impact and abrasion-resistant, even at high temperatures. Nylon absorbs water, so the material loses strength when used with wet applications. Nylon is resistant to oils, fuels, and organic solvents, but not strong acids and bases.

Temperature range: -40°F to 250°F

Note: JACO cautions against interchanging JACO parts with parts from other manufacturers.

Browse compression fittings for more information on JACO fittings.

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