Manhole Cover / Manway Assembly
The manhole cover / manway assembly gives you safer and more convenient access to glass-lined equipment for inspection, maintenance, adjustment, and material charging. In addition to serving as an access point for personnel, the manhole cover / manway assembly also makes it easier to observe the inside of the equipment and support daily operating needs.
Available nominal sizes include round DN400, DN500, and DN600, as well as oval 300 × 400 mm.
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Structural options
- Different Assisted-Opening Structures
The manhole cover / manway assembly is available in three main designs:
- Standard flip-type manhole cover
- Spring-assisted quick-opening manhole cover
- Hinged damping manhole cover
- Different Fastening Methods
According to the fastening method, the manhole cover / manway assembly can be configured with either clamp connection or swing bolt connection. - Different Sight Glass Structures
The sight glass opening on the manhole cover / manway assembly is available in two options: a standard sight glass structure and a sintered integral sight glass structure.






