Special Shaped Manholes (trapezium)

Special shaped manholes/trapezium for pipe sizes Ø900, Ø1050, Ø1200, Ø1350, Ø1500

Can be used as a change in direction in a sewer system. Base of manhole and cover slab are trapezium shaped.

Diameter B H internal Base/invert level H external
Ø900 1660 1330 330 1660
Ø1050 1660 1330 330 1660
Ø1200 1910 1580 330 1910
Ø1350 2160 1830 330 2160
Ø1500 2160 1830 330 2160

Dimensions of A, A1 en ? to customer’s choice of specification.