Overview
ISO 6182-8:2019 - Fire protection - Automatic sprinkler systems - Part 8 specifies performance requirements, test methods and marking for pre-action dry alarm valves, valve sets and manufacturers’ specified trim used in non-interlock pre-action automatic fire protection systems. The standard defines what manufacturers, test laboratories and specifiers must verify for valve performance and durability. It does not cover auxiliary components or attachments to pre-action dry valves.
Key topics and requirements
The standard addresses technical and verification topics critical to reliable pre-action systems, including:
- Scope and normative references (e.g., ISO 898-1, ISO 898-2)
- Design parameters: nominal sizes, connections and rated working pressure
- Materials and construction: body, cover and corrosion‑resistant materials
- Mechanical strength and clearances: body strength, sealing assembly clearances and reciprocating clapper tolerances
- Sealing and leakage: sealing assembly design, leakage tests (body and sealing assembly)
- Hydraulic performance: hydraulic friction loss testing and flow velocity considerations
- Operational performance: pre-action valve operation tests, setting up pre-action valve sets, valve impairment behaviour and alarm activation
- Endurance and durability tests: endurance, anti‑reseating, quick‑release and salt‑mist corrosion tests
- Aging tests for non‑metallic components: warm‑water and air ageing for plastics and other non-elastomeric parts
- Production testing & quality control: factory test requirements and tolerances
- Marking and documentation: required markings and manufacturer’s installation instructions
Applications and users
ISO 6182-8:2019 is used where pre-action dry alarm valves are specified or certified. Typical users include:
- Valve and sprinkler system manufacturers - to design, test and mark compliant pre-action valves and trim
- Test laboratories and certification bodies - to perform standardized performance and endurance tests
- Fire protection engineers and consultants - to select and specify compliant valve sets for non-interlock pre-action systems
- Contractors and installers - to follow manufacturer installation instructions and verify acceptance tests
- Building owners and facility managers - to understand performance expectations and maintenance requirements
Practical uses include product development, type testing, procurement specifications, acceptance testing and maintenance planning for fire suppression systems where controlled water admission is required.
Related standards
- ISO 898-1, Mechanical properties of fasteners - Part 1
- ISO 898-2, Mechanical properties of fasteners - Part 2
- Other parts of the ISO 6182 series (refer to ISO for the full list)
Keywords: ISO 6182-8:2019, pre-action dry alarm valves, automatic sprinkler systems, fire protection, test methods, valve sets, performance requirements, marking.