Stainless Steel Sanitary Silicone Round Normal Pressure Manhole

The working principle of the stainless steel sanitary circular normal pressure manhole is based on mechanical locking and sealing technology to ensure the airtightness of the tank body and provide a convenient opening method. Under normal conditions, the manhole cover is fixed to the tank body by hinges, and the locking device applies uniform pressure to make the sealing ring fit tightly with the tank body to prevent external contaminants from entering or internal materials from leaking. When opening, the operator loosens the locking device, rotates or lifts the manhole cover to separate it from the sealing ring, and then uses the hinge to support the opening of the manhole cover to provide sufficient operating space. When closing, the manhole cover is reset along the hinge to ensure that the sealing ring is fully in contact with the tank flange, and then pressure is applied through the locking device to form a reliable seal.

The options for stainless steel sanitary circular normal pressure manholes include:

Material: 304, 316L, suitable for different corrosive environments

Sealing ring material: silicone, EPDM, PTFE, FKM, suitable for different media

Manhole cover thickness: different thicknesses can be selected to enhance strength or reduce weight

Surface treatment: polishing level can be selected mirror polishing, brushed, electrolytic polishing

Connection method: flange connection, welding connection, bolt fixing, etc.

Manhole cover shape: flat cover, convex cover, low plane design, to meet different applications

Locking method: handwheel locking, quick-open buckle, bolt tightening, suitable for different working conditions

• The stainless steel sanitary circular normal pressure manhole adopts a self-sealing design, without the need for additional sealing rings. The contact surface between the valve cover and the valve seat is precisely machined so that it automatically forms a seal when closed.
• The stainless steel sanitary circular normal pressure manhole adopts an optimized pressure bearing structure, which enhances the manhole's pressure resistance and can adapt to different environmental requirements such as high pressure and normal pressure.
• The stainless steel sanitary circular normal pressure manhole adopts a circular design without dead ends, which reduces the area of fluid retention and ensures smooth flow of fluid in any state.
• The connection part of the stainless steel sanitary circular normal pressure manhole adopts integrated welding technology, avoiding the use of threaded or flange interfaces and reducing the risk of contamination at the connection part.
• The inner and outer surfaces of the stainless steel sanitary circular normal pressure manhole are treated with a special coating to enhance corrosion resistance and reduce the adhesion of pollutants.
• The specially designed anti-leakage system of the stainless steel sanitary circular normal pressure manhole can prevent liquid and gas leakage under extreme conditions and ensure the closed state of the system.

Stainless steel sanitary circular normal pressure manholes are widely used in the following industries: Food industry: used for cleaning, inspection and maintenance operations of storage tanks and reaction tanks. Pharmaceutical industry: meets GMP standards and is used for the inspection and cleaning of pharmaceutical production equipment. Bioengineering: Applicable to the high cleanliness requirements of fermentation tanks and bioreactors. Cosmetics industry: Applicable to the regular cleaning and maintenance of raw material storage tanks. Winemaking industry: Applicable to the inspection, cleaning and process monitoring of wine fermentation tanks. Chemical industry: Applicable to the inspection and maintenance of sanitary storage tanks and pipelines.