Application
▪ The pressure type manhole cover series is mainly used in pressure vessels in industries such as food, brewing, beverages, and pharmaceuticals.
Operational principle
▪ When it is necessary to repair the storage tank, first unscrew the handwheel (used to fix the manhole cover and provide axial sealing force), and then use the handle fixed on the manhole cover to open the manhole cover (the manhole cover is connected to the frame through a hinge to ensure accurate closure of the manhole cover, and the hinge can limit the opened manhole cover to stop at an angle of 30 ° above the vertical position), so that maintenance personnel can inspect the inside of the tank; After the manhole cover is closed in place, the sealing element of the manhole cover and the tank body can ensure a good seal, thereby avoiding material leakage inside the tank.
Design standards
▪ Yodsn can provide oval or circular product forms; Pressure manhole cover without or with optional sight glass.
▪ The pressure type manhole cover can be equipped with more than 4 handwheel fixing devices, and the number of handwheels can be determined based on the size, pressure, and temperature of the manhole cover, or changed according to customer requirements.
Technical parameter
▪ Work pressure: 5% for high pressure 0 b a r
▪ Working negative pressure: full vacuum
▪ Temperature range: -10 ° C to 2 50 ° C
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