Hygienic Stainless Steel Round Manhole Cover With Sight Glass

• J&O Round Manhole Cover with Sight Glass Non-pressure manhole is the most common manhole, which fits the non-pressure tanks.
• It is generally installed on the top of the tank. It is the entrance and exit for production workers and maintenance workers when building, cleaning and pouring tanks.
• Their primary application is to make the liquid in the tank accessible, allow checking of liquid levels.
• While still retaining control over the head-space atmosphere of the tank - manholes do seal and prevent air exchange.
• But are not designed to withstand the stronger pressure like tank manways.
• Manholes are usually mounted on top of the tank with the size depending on the condition application: larger for ease of adding solids, or smaller for adding liquids or powders.

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