Fixed firefighting systems. Components for gas extinguishing systems - Requirements and test methods for check valves and non-return valves Ingestion-build-82396 BS EN 10225‑2 with BS

BS EN 10225‑2  with BS EN 10225‑1:2019

It may also be applied to visual testing of the joint prior to welding

NOTE 4 For the requirements for high-voltage power supply installations

IEC 60038:1983

all international standards needed to prepare technical product specifications (TPS)

Fixed firefighting systems. Components for gas extinguishing systems - Requirements and test methods for check valves and non-return valves Ingestion-build-82396 BS EN 10225‑2 with BSThis European Standard specifies the requirements and describes test methods for check and non return valves for CO2, inert gas or halocarbon gas fire extinguishing systems. Non return and check valves allow the passage in the direction of flow and they prevent flow in the reverse direction. This European Standard is applicable to check valves installed between container valve and manifold and non return valves installed in pilot lines, except those