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The stainless steel sanitary normal pressure circular manhole is a circular opening device for sanitary equipment, usually made of 304 or 316 stainless steel, with the characteristics of corrosion resistance and easy cleaning. The stainless steel sanitary normal pressure circular manhole is used for rapid inspection of the internal state of the pipeline or tank, which is convenient for operators to directly observe or intervene in the operation of the fluid. The stainless steel sanitary normal pressure circular manhole is mainly used for low-pressure or non-pressure fluid pipelines and storage tank systems in industries such as food, pharmaceuticals, and bioengineering. It is generally installed on the top, side or bottom of the storage tank, as well as the inspection and maintenance parts of large conveying pipelines. The conventional types of stainless steel sanitary normal pressure circular manholes include: manhole with observation window, manhole with pressure relief valve, thickened manhole, quick-opening manhole, manhole with sampling port, flip-up manhole, and lined sealed manhole.
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Stainless Steel Sanitary EPDM Polished Normal Pressure Round Manhole
The design purpose of the stainless steel sanitary normal pressure circular manhole is not only to provide an opening for the pipeline or tank, but also to achieve rapid and pollution-free internal inspection, maintenance and intervention in an environment with high hygienic requirements. It optimizes the sealing structure and opening method to ensure that the operator can quickly open the manhole under no pressure or low pressure, avoiding the tedious process of disassembly of traditional flange connection, thereby shortening equipment downtime. In addition, the manhole design also takes into account the compatibility of CIP (online cleaning) and SIP (online sterilization) systems, enabling it to be cleaned and disinfected without destroying the sterile environment. Some models are also equipped with observation windows or sampling ports to monitor fluid conditions or extract samples in a closed state without destroying the integrity of the system. These features make it part of key equipment in high-standard food, pharmaceutical, bioengineering and other industries, improving production efficiency, safety and controllability.
Working Principles
The working principle of the stainless steel sanitary normal pressure circular manhole is based on its sealing structure, opening and closing mechanism and safety design, ensuring convenient opening and closing, observation and maintenance under normal pressure. When the manhole needs to be opened, the operator first loosens the locking bolt or handwheel to separate the sealing ring from the manhole cover, and then easily opens the cover through the hinge mechanism or flip device to avoid the cover falling off or damage caused by misoperation. After opening, the internal state of the tank can be directly checked for cleaning, maintenance or sampling. Some manholes are equipped with observation windows to monitor the internal fluid state without fully opening.
Options for stainless steel sanitary normal pressure round manholes include:
Material: 304 or 316 stainless steel, 316 corrosion resistance.
Size: various diameters (such as DN400, DN500, etc.) to meet the needs of different equipment.
Sealing materials: EPDM, silicone, PTFE, etc. to meet different media and temperature requirements.
Surface treatment: polishing, brushing or passivation to improve hygiene and aesthetics.
Opening method: hinged, quick-opening or bolted, easy to operate and maintain.
Additional functions: with sight glass, cleaning ball or exhaust port to enhance practicality.
Flange standards: DIN, SMS, ISO, 3A, etc. to match different connection requirements.
Specification Chart
Size | 200 to 600 mm |
Material | AISI304, AISI316L |
Seal | EPDM, PTFE, silicon |
Height | 100,120,150mm |
Maximum pressure | 10 bar |
Temperature range | -10 °C ~ 120 °C |
Features
● The stainless steel sanitary normal pressure round manhole is equipped with a built-in quick switch device, which allows users to easily open or close the manhole cover, reducing the time of traditional manual operation.
● The stainless steel sanitary normal pressure round manhole adopts a special high-pressure protection design to ensure stable operation when the pipeline is under high pressure or pressure fluctuations.
● The surface of the stainless steel sanitary normal pressure round manhole has undergone special anti-corrosion treatment and can resist corrosion from chemicals.
● The stainless steel sanitary normal pressure round manhole is equipped with an internal and external double sealing design to ensure that the sealing performance is stable under various working conditions.
● The stainless steel sanitary normal pressure round manhole is equipped with an adjustable flow control device to help accurately control the flow of the fluid in the pipeline.
● The stainless steel sanitary normal pressure round manhole is designed with a structure that is easy to clean inside to ensure that there is no dead corner and it is easy to clean up the accumulated impurities.
Application
Stainless steel sanitary normal pressure circular manholes are widely used in the following industries: Food industry: ensure cleanliness and hygiene requirements during fluid transportation. Pharmaceutical industry: meet strict hygiene standards to ensure that the pharmaceutical production environment is pollution-free. Bioengineering: Monitor the fluid state in the bioreactor to ensure a stable environment. Dairy industry: Ensure that there is no pollution in the dairy production process and meet hygiene requirements. Beverage industry: Ensure the quality of fluids in beverage production and prevent pollution. Chemical industry: Monitor the flow of chemicals to prevent accidental contamination in chemical reactions. Water treatment industry: Ensure that equipment is clean during water treatment and meets safety standards.
Working Principles
tedious process of disassembly of traditional flange connection, thereby shortening equipment downtime. In addition, the manhole design also takes into account the compatibility of CIP (online cleaning) and SIP (online sterilization) systems, enabling it to be cleaned and disinfected without destroying the sterile environment. Some models are also equipped with observation windows or sampling ports to monitor fluid conditions or extract samples in a closed state without destroying the integrity of the system. These features make it part of key equipment in high-standard food, pharmaceutical, bioengineering and other industries, improving production efficiency, safety and controllability.
Specification Chart
Size | 200 to 600 mm |
Material | AISI304, AISI316L |
Seal | EPDM, PTFE, silicon |
Height | 100,120,150mm |
Maximum pressure | 10 bar |
Temperature range | -10 °C ~ 120 °C |
Features
● The stainless steel sanitary normal pressure round manhole is equipped with a built-in quick switch device, which allows users to easily open or close the manhole cover, reducing the time of traditional manual operation.
● The stainless steel sanitary normal pressure round manhole adopts a special high-pressure protection design to ensure stable operation when the pipeline is under high pressure or pressure fluctuations.
● The surface of the stainless steel sanitary normal pressure round manhole has undergone special anti-corrosion treatment and can resist corrosion from chemicals.
● The stainless steel sanitary normal pressure round manhole is equipped with an internal and external double sealing design to ensure that the sealing performance is stable under various working conditions.
● The stainless steel sanitary normal pressure round manhole is equipped with an adjustable flow control device to help accurately control the flow of the fluid in the pipeline.
● The stainless steel sanitary normal pressure round manhole is designed with a structure that is easy to clean inside to ensure that there is no dead corner and it is easy to clean up the accumulated impurities.
Application
Stainless steel sanitary normal pressure circular manholes are widely used in the following industries: Food industry: ensure cleanliness and hygiene requirements during fluid transportation. Pharmaceutical industry: meet strict hygiene standards to ensure that the pharmaceutical production environment is pollution-free. Bioengineering: Monitor the fluid state in the bioreactor to ensure a stable environment. Dairy industry: Ensure that there is no pollution in the dairy production process and meet hygiene requirements. Beverage industry: Ensure the quality of fluids in beverage production and prevent pollution. Chemical industry: Monitor the flow of chemicals to prevent accidental contamination in chemical reactions. Water treatment industry: Ensure that equipment is clean during water treatment and meets safety standards.
