Equipment; Marking Of Features - Nippon Gases R-500 Instrucciones De Manejo Y Seguridad

3. EQUIPMENT

1. Cylinder valve
2. Inlet stem (specific for each gas)
3. High pressure gauge (EN 5171)
4. Low pressure gauge or flowmeter (EN 5171)
5. Adjusting pressure knob

4. MARKING OF FEATURES

Each regulator shows different markings for identification, according to standard, as indicated
hereafter:
(Example of REGULATOR R-500 for oxygen)
1. Gas type
2. Regulator class according to EN IMax. inlet pressure
3. Max. inlet pressure
4. Max. outlet pressure
5. Manufacturer's identification mark
6. Date of manufacture (MonthYear)
TYPE OF GAS
HYDROGEN
AIR
CO
2
R-500
6. Shut off valve
7. Outlet hose nipple
8. Relief valve
9. Washer of inlet stem
10. Outlet nut
1
H
200 bar
3
CODE LETTER
H
D
N
REGULATOR
2
Class 3
10 bar
MMYY
5 6
21
EN
PT
EN
4