Flanges – types, pressure ratings & standards
Flanges in all standardised forms and pressure ratings – per EN 1092-1, DIN and ASME. Weld-neck, blind, lap-joint, slip-on and threaded flanges plus ASME B16.5 flanges. Find type, pressure ratings, sealing faces and standards here.
Flange dimension tables (EN 1092-1)
Outside Ø · bolt circle · bolts · DN–inch · PN–Class
Weld-neck flange
WN · Type 11 · Weld Neck · PN 6 – PN 400
Blind flange
BL · Type 05 · Blind · PN 6 – PN 400
Lap-joint (loose) flange
LJ · Type 02/04 · Lap Joint · PN 6 – PN 40
Slip-on flange
SO · Type 01 · Slip-On · PN 6 – PN 40
Threaded flange
TH · Type 13 · Threaded · PN 6 – PN 40
ASME B16.5 flanges
WN · SO · BL · TH · LJ · Class 150–2500
Read more in our article: Flanges to EN 1092-1: types, sealing faces and pressure ratings
Flanges up to DN 4000 – to EN, ASME, BS, API and JIS
Beyond the standard dimensions, we supply large flanges up to DN 4000 or 160 inches in pressure ratings from PN 2.5 to PN 400 or Class 75 to 2500 – as weld-neck, blind, lap-joint and slip-on flanges and stub ends, to standard or to your drawing.
- Standards: EN, ASME, BS, API and JIS
- Nominal sizes DN 15 to DN 4000 (½" to 160")
- Pressure ratings PN 2.5 to PN 400, Class 75 to 2500
- Materials from carbon steel and creep-resistant steels through low-temperature fine-grain steels to stainless steel, duplex, super duplex and nickel-based alloys
- On request with inspection to AD 2000 W0 or the Pressure Equipment Directive, by DNV, LR or ABS and to NORSOK M-650 for duplex and super duplex
Looking for the right flange?
Type, size, pressure rating, sealing face and material are enough – we supply the right flange, on request with an EN 10204 3.1 / 3.2 mill certificate.