National N-ST16 Grooved Threaded Mechanical Tee (3in x 1-1/4in) (MOQ of 4 Pcs)

National N-ST16 Grooved Threaded Mechanical Tee (3in x 1-1/4in) (MOQ of 4 Pcs)

SKU: FVH-0572
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AED 22.00

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The National N-ST16 Grooved Mechanical Tee (3in x 1-1/4in) with threaded outlet provides a fast, bolt-on branch connection directly onto 3-inch main piping. Built from ductile iron with UL/FM approvals, it is sold with a Minimum Order Quantity (MOQ) of 4 pieces.

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Description

The National N-ST16 Mechanical Tee is designed to create a direct 1-1/4″ threaded branch outlet on a 3″ main steel pipe run without welding or cutting main line sections. Constructed from high-strength ductile iron and protected by a durable painted or galvanized finish, it features a contoured EPDM gasket and a dual-bolt saddle clamp design to ensure a pressure-tight seal. The female threaded outlet allows seamless integration of branch lines, sprinkler drops, or pressure gauges in fire protection and HVAC networks. Fully UL Listed and FM Approved, this model is sold in a minimum order quantity (MOQ) of 4 pieces for commercial and industrial installation efficiency.

Features

  • Enables fast creation of 1-1/4″ branch outlets on 3″ main lines without sectioning pipe or welding
  • Dual-bolt saddle housing design ensures even clamping pressure and structural rigidity across the pipe
  • Molded EPDM pressure-responsive gasket provides a reliable, leak-free seal around the hole cutout
  • Ductile iron construction with protective coating resists mechanical stress, corrosion, and pressure surges
  • UL Listed and FM Approved for full compliance with life safety and fire sprinkler installation codes

Specifications

  • Brand / Series: National / N-ST16 Series
  • Fitting Type: Mechanical Tee (Threaded Outlet Branch Connection)
  • Main Pipe Size x Branch Size: 3″ Main (DN80) x 1-1/4″ Outlet (DN32)
  • Outlet Connection: Female Threaded (NPT / BSPT)
  • Approvals / Compliance: UL Listed, FM Approved
  • Nominal Working Pressure: 300 PSI (20.7 Bar)
  • Body Material: Ductile Iron (ASTM A536 Grade 65-45-12)
  • Gasket Material: EPDM Rubber (Grade E) for water services
  • Hardware: Heat-treated carbon steel track bolts and heavy-hex nuts
  • Finish: Red Painted / Epoxy Coated / Hot-Dip Galvanized
  • Minimum Order Quantity (MOQ): 4 Pieces
  • Suitable Medium: Fire protection sprinkler systems, HVAC chilled/hot water, industrial water supply

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