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Grooved Couplings and Fittings

Overview:

Grooved couplings and fittings are ductile‑iron mechanical pipe joining components widely adopted for fire‑protection, HVAC and water piping systems. The grooved connection method relies on machined grooves on pipe ends, rubber gaskets and bolted housings to form reliable pipe joints, instead of welding or threading.

Our complete grooved product portfolio includes flexible couplings, rigid couplings, elbows, tees, reducers, flanged adapters and other branch fittings. Products are certified with UL‑Listed and FM‑Approved, also with CE mark. They deliver fast on‑site assembly for fire sprinkler systems, domestic water service, cooling‑water circulation and other mechanical piping projects in commercial buildings, high‑rises and industrial facilities.

Key Features:
  • Material: High‑strength ductile iron housing with epoxy coating
  • Certifications: UL Listed, FM Approved, CE certified for fire‑safety piping applications
  • Connection principle: Grooved mechanical joint, no on‑site welding or threading required
  • Two main coupling types: Rigid couplings for fixed pipe sections; Flexible couplings to absorb thermal expansion, contraction and building vibration
  • Full range of fittings: elbows, tees, reducers, caps, flanged adapters and mechanical tees
  • Broad available size range to suit different pipe diameters
  • Speeds up field installation work and shortens overall construction period
  • Good sealing performance; convenient for later system inspection, maintenance and modification
  • Main application: Fire‑protection sprinkler systems, HVAC chilled‑hot water, potable water, general industrial service piping