BS EN 12094-8:2006 – Fixed firefighting systems — Components for gas extinguishing systems — Part 8: Requirements and test methods for connectors

1 Scope
This European Standard specifies requirements and describes test methods for flexible and rigid connectors used in CO 2 -, Inert Gas- or Halocarbon gas fire extinguishing systems.
This European Standard is applicable to connectors used:
between container valves and the manifold (type 1 and type 5 connector);
in pneumatic pilot lines (type 3 connector);
in distribution pipework of fire extinguishing installations downstream of the manifold/selector valve (type 2 or type 4 connector).
2 Normative references
The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenceddocument (including any amendments) applies.
EN ISO 9001 :2000, Quality management systems — Requirements (ISO 9001:2000)
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
CO 2 -high-pressure installation
fire extinguishing installation in which the CO 2 is stored at ambient temperature. For example, the pressure of the CO 2 in storage is p abs = 58,6 bar at 21 °C
3.2
CO 2 -low-pressure installation
fire extinguishing installation in which the CO 2 is stored at low temperature, normally −19 °C to −21 °C
3.3
fill ratio
mass of extinguishing medium related to the net capacity of a container expressed as kilograms per litre (kg/l)
3.4
connector
component that joins two parts
3.5
Halocarbon Gas
extinguishing agent that contains as primary components one or more organic compounds containing one or more of the elements fluorine, chlorine, bromine or iodine
3.6
Halocarbon Gas installation
fire extinguishing installation in which the Halocarbon Gas is stored at ambient temperature
3.7
Inert Gas
non liquefied gas or mixture of gases which extinguish the fire mainly by reducing the oxygen-concentration in the protected zone, like Argon, Nitrogen or mixtures of these gases with CO 2
3.8
Inert Gas installation
fire extinguishing installation in which the Inert Gas is stored at ambient temperature
3.9
type 1 connector
flexible connector for connecting container valves to a manifold or check valve
3.10
type 2 connector
flexible connector for use in distribution pipework downstream of the manifold/selector valve for the connection of parts which may move relative to each other
3.11
type 3 connector
flexible connector for use in pneumatic pilot lines
3.12
type 4 connector
flexible connector for use in distribution pipework downstream of the manifold/selector valve for the connection of non-moving parts which allow for dimensional adjustments
3.13
type 5 connector
rigid connector for connecting containers to a manifold
3.14
working pressure
pressure at which the component is used in the system
4 Requirements
4.1 General design
Metal parts of connectors shall be made of stainless steel, copper, copper alloy or corrosion-protected steel (e.g. galvanized).
All materials shall be resistant to media with which they come into contact.
The type of connectors shall be specified by the manufacturer.
BS EN 12094-8:2006 – Fixed firefighting systems — Components for gas extinguishing systems — Part 8: Requirements and test methods for connectors