Know Your Cylinder Valve Markings

Mandatory & Optional Markings Markings
  • Mandatory Markings
  • Optional Markings
+ MANDATORY
Pi Marking

Compliance to European Transportable Pressure Equipment Directive, TPED 2010/35/EU

+ MANDATORY
Identification Of Notified Body

Four digit identification number for TPED notified body

+
Temperature Range

Operating and storage temperature range if the valve has been design tested for extended temperature range

+
Item Code

Alpha numeric valve identification

+ MANDATORY
Standard Compliance

Compliance to EN ISO 10297 standard. If ISO VB is marked on the valve, it indicates that the valve has been tested for Oxygen pressure surge test for use as a main valve

+
Series

Model number of the valve with unique design features

+
Country Of Origin

Country where the valve is manufactured

  • Mandatory Markings
  • Optional Markings
+ MANDATORY
Inlet Identification

Valve inlet connection which engages with the cylinder neck

+ MANDATORY
Outlet Identification

Valve outlet connection which engages with the filling / discharge connection

+
Gas Service

Gas service for which the valve is certified, compatible & intended to be used

+
Valve test pressure (TP)* or Valve working pressure (WP)*

Settled pressure of a compressed gas at 15 °C in a full gas cylinder or cylinder bundle for which the valve is intended to be used

+ MANDATORY
Total Package Mass

Total package mass (combined mass of a gas cylinder, its valve, its permanent attachment(s) including valve guard & its maximum allowed gas content) for which the valve can be used without valve protection

+ MANDATORY
Manufacturing Date

YYYY/MM - Year & month of manufacture of valve

+ MANDATORY
Manufacturer’s
Identification
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