Nominal diameter: 
DN 50 - DN 300

Face-to-Face: 
EN 558 Series 20
ISO 5752 Series 20
API 609 Table 1

Flange accommodation: 
EN 1092 PN 6/10/16
ASME Class 150
AS 4087 PN16/21

Flange Surface Design:
EN 1092 Form A/B
ASME RF, FF

Top flange:
EN ISO 5211

Marking:
EN 19

Tightness check:
EN 12266 (Leakage rate A)
ISO 5208, Category 3

Temperature range:
-10°C bis +120°C
(depending on seat material)

Operating pressure:
max. 10 bar