A round pressure manhole is a circular opening installed in tanks, pressure vessels, or industrial reservoirs, designed to operate under internal pressure, not just atmospheric pressure. It allows personnel access to the tank's interior for inspection, cleaning, or maintenance, and ensures a hermetic seal capable of withstanding internal pressure.
Application: Tanks that need to withstand positive pressure.
Main features:
A round pressure manhole is a circular opening in tanks, boilers or industrial equipment that allows access for maintenance, but with the characteristic of sealing hermetically by means of a "pressure" mechanism (a handwheel or clamps) to withstand internal or external pressure differences, guaranteeing a safe and watertight closure.
They are essential in autoclaves, pressure water tanks and ovens for inspection and cleaning, manufactured in stainless steel to withstand high temperatures and pressure.
Technical specifications for a round, pressure-fit manhole:
| Code | DN | OD (mm) | t (mm) | H (mm) | t1 (mm) | Pressure (bar) |
| 433301 | 400 | 406 | 3 | 100 | 3 | 1-3 |
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