ISO 6182-14:2019 PDF

Overview

ISO 6182-14:2019 - Fire protection - Automatic nozzle systems - Part 14 specifies performance requirements, test methods and marking for open water spray nozzles used in fire protection. It covers material, construction and functional tests for nozzles (not open sprinklers or water mist nozzles) and excludes installation design factors such as nozzle spacing, design densities, wind or hot gas velocities. The standard is part of the ISO 6182 series for fixed firefighting systems using water.

Key topics and requirements

• Scope and definitions: Clarifies what constitutes an open water spray nozzle and distinguishes coated nozzles (factory-applied corrosion protection).
• Materials and assembly: Nozzles must be made from corrosion‑resistant metallic materials (brass, bronze, stainless steel are accepted) and be designed so they cannot be readily adjusted, dismantled or reassembled.
• Orifice and strainer rules:
  • A 5 mm diameter sphere must pass through each water passage unless protected by a strainer.
  • If orifices