Fixed firefighting systems - Components for sprinkler and water spray systems - Part 2: wet alarm valve assemblies

رقم المستند: NL EN 12259 2 : 2008
القطاع: Construction Materials and Building
TC: LIBNOR
ICS: 13.220.20
This standard specifies requirements for constructions and performance of wet alarm valve assemblies and retard chambers used in automatic sprinkler systems Auxiliary components and attachments to wet alarm valve assemblies and retard chambers are not covered by this standard. NOTE: All pressure data in this European standard are given as guage pressure in bar (bar=100.000 Pa)