Flange joint are in following versions y (marked DNXX.y)

- DNXX.0 – flanged joint for armatures
- DNXX.1 – flanged joint for pipe distribution
- DNXX.2 – flange joint with of three degree of freedom with exploitation assembling welding seam
- DNXX.4 – flanged joint for armatures with ability for altering the armatures without dismounting piping system