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SS304 Or SS316L Manway Use for Tank Pressure Stainless Steel Sanitary Square Manhole

The manhole is a safety emergency ventilation device installed on the top of the storage tank. It is usually used in conjunction with fire extinguishers and mechanical breathing valves. It can not only avoid accidents caused by sudden overpressure or vacuum in the tank due to accidents, but also damage to the storage tank. It is a safety device to protect the storage tank, and it is a safety device to protect the storage tank. It is especially suitable for the vaulted atmospheric tank with nitrogen topped by the storage material. It has the advantages of constant pressure discharge, constant pressure suction, flexible opening and closing, safe fire resistance, compact structure, good sealing performance, safety and reliability.
  • SS304


Product Description
  • Available standards: DIN, ISO, IDF, 3A, SMS, RJT, CIP, AS, BS

  • Available materials: SS304, SS304L SS316, SS316L

  • Certification: ISO9001, SGS, TUV, EAC

  • Application: food and beverage, pharmaceutical, general industry, etc.

  • Fluid temperature: normal temperature

  • Fluid pressure: medium pressure

  • Streaming media: water, beverages, potions, milk, beer, juice, oil

  • Surface treatment: polishing, pickling, electrochemical polishing

  • Usable height: 100mm~300mm

  • Available size: 200mm~800mm


The pressure vessel also adopts a quick-opening structure, which is convenient and safe to open, and has a practical and beautiful appearance. There are oval, round, square, withstand pressure of 0.05-0.5Mpa, and the material is SUS304 or SUS316L.


Installation and maintenance:

Because the manhole is located in the lower part of the oil tank, the manhole bears a lot of liquid pressure. In order to prevent leakage, the installation quality of the manhole must be strictly required. The flanges and cover plates are processed with sealing water lines, so care should be taken to protect them during construction to avoid oil leakage during use. Make a mark every time the manhole is removed to avoid dislocation when reinstalling, which affects the tightness. When installing the nuts on the manhole cover, apply force evenly in pairs to prevent oil leakage caused by deformation of the cover or uneven force.



DEGONG's tank manhole products are exported to the world, using the most exquisite technology to create the best products, if you need or are interested in our products, please contact us!


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