Gruvlok fittings are available through 24" nominal pipe size in a variety of styles.
These fittings are designed to provide minimum pressure drop and uniform strength.
Depending on styles and size, Gruvlok fittings are provided in various materials
including malleable iron, ductile iron, forged steel or fabricated steel.
Not for use in copper systems.

Material Specifications

Cast Fittings
  • Ductile iron conforming to ASTM A 536, Grade 65-45-12
  • Malleable iron conforming to ASTM A 47
  • Fabricated Fittings
  • 1-6" Carbon steel, Schedule 40, conforming to ASTM A 53, Grade B
  • 8-12" Carbon steel, Schedule 30, conforming to ASTM A 53, Grade B
  • 14-24" Carbon steel, 0.375 wall, conforming to ASTM A 53, Grade B
  • Coatings
  • Rust inhibiting paint – Color: ORANGE (standard)
  • Hot Dipped Zinc Galvanized conforming to ASTM A 153 (optional)
  • Other Colors Available (IE: RAL3000 and RAL9000)
  • Use the Fitting Size Table to convert nominal pipe size to corresponding pipe O.D.

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