SFRK-M500B Saddle type heatpreservation manhole:

Design feature:

500mm saddle manhole asssembly, 8-point fastening (or 6-point fastening being optional ) and 8mm flanging, suitable for any tank radius; manhole cover adopts double pressing. Thermal insulation materials are added to the chamber ensuring good heat preservation effect and cutting down on heat loss during transportation. 

Technical parameters:

Weight：

Design pressure：2.67Bar

Test pressure:4Bar

Design temperature:-40℃~250℃