400mm

500mm

600mm

800mm

1000mm

1200mm

1500mm

1800mm

2000mm

2360mm

3000mm

3500mm

4000mm

non standard inside diameter available on request

bigger sizes are panel built

capacity on request

flat

convex

conic ( 60 ° / 90° )

horizontal - on saddle ( integral or removable ) - underground vertical