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 DIN 2002 REGULATOR for Oxygen)
1. Gas type
2. Regulator class according to EN ISO 2503
3. Max. inlet pressure
4. Max. outlet pressure
5. Date of manufacture (MonthYear)
6. Serial number
TYPE OF GAS
OXYGEN
ACETYLENE
NITROGEN
ARGON / CO
2
PROPANE
DIN 2002 REGULATOR
6. Shut off valve
7. Outlet hose nipple
8. Relief valve
9. Washer of inlet stem
10. Outlet nut
1
O Class 2
3
200 bar
10 bar
CODE LETTER
O
A
N
N
P
2
5
MMYY
M5Z4315
4
6
21
EN
PT
EN