Verified 10 August 2026

Grooved pipe fittings & mechanical tees manufacturers in United States

Grooved pipe fittings and mechanical tees are made by a mix of specialist manufacturers (ductile iron and stainless steel grooved fittings), larger fire-protection brands, and some international foundries. Buyers should look for makers who publish material spec/standards, pressure ratings, and UL/FM or other fire-protection approvals when sourcing these parts.

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11 verified manufacturers

  • GemLock™United States (New York)

    “QRFS product page: "Each Grooved Mechanical Tee is made by GemLock™, a New York-based manufacturer of fire sprinkler grooved ductile iron pipe fittings, HVAC, plumbing and grooved ..."”

  • VictaulicUnited States

    “Victaulic corporate site: "Victaulic is a global leading producer of mechanical pipe joining, flow control & fire protection solutions" and product pages for grooved fittings.”

  • National Fitting Limited

    “National Fittings site: "National Fittings manufactures a complete range of Ductile Iron Grooved Couplings & Fittings, Threaded Fittings, Stainless Steel Threaded Fittings & Ball Valves ..."”

  • GroovJoint

    “GroovJoint product page: "Stainless Steel Grooved Fittings by GroovJoint ... grooved pipe fittings are full-flow design in both 304L and 316L grades ... sizes 1" - 12"."”

  • Shurjoint

    “JME Ellsworth grooved couplings & fittings brand list snippet includes: "Shurjoint" (listed among grooved coupling & fittings brands).”

  • Anvil

    “JME Ellsworth grooved couplings & fittings brand list snippet includes: "Anvil" (listed among grooved coupling & fittings brands).”

  • Dixon

    “JME Ellsworth grooved couplings & fittings brand list snippet includes: "Dixon" (listed among grooved coupling & fittings brands).”

  • Smith Cooper

    “JME Ellsworth grooved couplings & fittings brand list snippet includes: "Smith Cooper" (listed among grooved coupling & fittings brands).”

  • Jizhong (Shijiazhuang Jizhong Malleable Iron Co., Ltd.)China

    “Archpipes article listing top grooved fittings manufacturers: "1. Jizhong (Shijiazhuang Jizhong Malleable Iron Co., Ltd.)"”

  • JianzhiChina

    “Archpipes "Top 6 Grooved Fittings Manufacturers in China" list includes: "Jianzhi"”

  • Cooplok

    “GetPipe product listing snippet: Mechanical Tees roster shows brand names: "Cooplok" among items for grooved mechanical tees.”

Compiled from public sources and refreshed periodically. Always verify certifications and capabilities directly with the manufacturer before ordering.

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What to specify in your RFQ

Manufacturers quote faster and more accurately when your request covers these points.

  • Pipe size(s) / outlet size

    Specify the run-size and branch/outlet size(s) (e.g., 6" x 3") so suppliers can match fitting models and couplings.

  • Material and grade

    State material required (ductile iron, cast iron, 304L or 316L stainless) and any accepted ASTM/EN grades.

  • Connection type / groove standard

    Specify groove finish and standard (Victaulic grooved profile, ANSI, or other profile) to ensure compatibility with couplings.

  • Pressure rating and approvals

    List required working pressure and approvals (UL/FM, CE, or other fire-protection listings) relevant to the application.

  • Quantity and delivery

    Provide exact quantities per size and target delivery date to get accurate lead-time and pricing.

  • Temperature / media

    State operating temperature range and fluid/gas type (water, sprinkler, HVAC fluid, fuel) to confirm material and gasket selection.

  • Finish / coating

    Note any required coatings (galvanized, epoxy, non-lead paint) or special corrosion protection.

Sourcing FAQ

How do I verify a supplier actually manufactures grooved fittings?
Ask for the manufacturer's product datasheets showing material specs, pressure ratings, and standard compliance; prefer suppliers that publish factory details or have a dedicated product site (UL/FM listings are strong evidence for fire-protection fittings).
What typical minimum order quantities (MOQs) should I expect?
MOQs vary by maker and part: standard-stock sizes are often available in small quantities from distributors, but direct factory orders for specialty sizes or stainless grooved fittings can require larger MOQs—confirm per- SKU with the manufacturer.
Which certifications matter for mechanical tees used in fire protection?
Look for UL and FM approvals and conformance to applicable ASTM standards and local building codes; manufacturers that serve fire protection usually list these approvals on product pages or datasheets.
What drives lead time for grooved fittings and mechanical tees?
Lead times depend on whether parts are stocked or factory-made, material (stainless and specialty grades take longer), order quantity, and whether custom coatings or threaded outlets are required.

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