Order code for ordering

Design data

Y31

• Medium/measured medium

Name

....................

Y32

• Aggregate state

вќ‘Liquid

вќ‘Gaseous

Y33

• Fluid group
  - Explosive
  - Highly, extremely flammable
  - Oxidizing
  - Toxic, highly toxic

вќ‘Group 1

All others

вќ‘Group 2

Y34

Maximum permissible pressure (not PN)

PS¹⁾

....................

вќ‘bar

вќ‘psi

Y35

at the maximum permissible temperature

TS²⁾

....................

вќ‘°C

вќ‘°F

¹⁾ PS: Setting pressure of the safety mechanism (valve, bursting disk)
²⁾ TS: Range of the temperature limits

The following are already defined by the article number:

• Nominal diameter

DN

....................

• Assignment of the category
  Annex II of the Pressure Equipment Directive contains 4 diagrams with which the associated category of the primary differential pressure devices can be determined.

Article 4 Paragraph 3

вќ‘

Category 1

вќ‘

Category 2

вќ‘

Category 3

вќ‘