EN3 is a European standard certificate for products. Products obtained EN3 certificate indicates it has a safe performance and good quality. All European fire extinguisher producers are required to use pressure gauges with qualified EN3 test reports.
KD03-EN3 CERTIFIED GAUGE Copper casing nickel plated, inner copper movement,pointer with copper and unbreakable PC plastic.The material does not fatigue after subject to 1000 pressure cycle test. The diaphragm structure enables it not to leak under a pressure 6 times of the working pressure. The window is made from unbreakable PC plastic. The indication is accurate and clear to read.
Work at temperature from -30℃ to 60℃
M10x1-12.5 or NPT 1/8
Beginning of the green zone: ≤+1bar
End of the green zone: ±0.6bar
Working Pressure: ±0.5bar