Round Manhole *Material: AISI304/316L

Product Description

The normal pressure manhole is a safety emergency ventilation device installed on the top of the storage tank, which is usually used in conjunction with the mechanical breathing valve, it is also a safety device to protect the storage tank. It is especially suitable for the vaulted atmospheric tank whose storage material is sealed with nitrogen gas. The utility model has the advantages of constant pressure discharge, constant pressure inhalation, flexible opening and closing, safe fire resistance, good sealing performance, safety and reliability, etc.

Design and features

• Outward opening man hole cover
• Plastic hand wheel or stainless steel hand wheel
• Internal surface: Ra0.8μ m-0.5μm
• Outside surface: Polishing finished, sub- light finished, sand-blasting finished.
• Max. pressure: 5.0bar
• Gasket: EPDM, NBR, SILICON, FPM in accordance with FDA177.2600
• Height: 100, 120, 150mm
• Material: A/SI304(1.4301)/316L (1.4404)

ST-V1155