Pressure Type Manhole Cover & Non-pressure Type Manhole Cover
Pressure Type Manhole Cover & Non-pressure Type Manhole Cover
Pressure Type Manhole Cover
Application
Pressure vessel pressure type manhole cover series is mainly used in food, wine, beverage and pharmaceutical industries on.
Working Princple
When the need for maintenance of the tank, first unscrew the handwheel(for fixed Kong Gai and provide axial sealing force, and with the help of the handle is fixed on Kong Gai's Kong Gai Kong Gai (open)is connected with the frame through a hinge, which Kong Gai closed accurately when closed, and open the manhole cover hinge allows the limit stop in the vertical angle more than 30 ° degrees), and maintenance personnel for the inspection of the tank; when Kong Gai closed in place after the Kong Gai seal, and the tank body can ensure the safety of the seal ,thus avoiding the pipe leaks.
Material Science
Steel parts: 304 or 316L
Seal: EPDM
Technical parameter:
Working pressure: the maximum pressure is 5.0 bar
Work negative presure: full vacuum
Temperature: -10℃ to 250℃
Non-pressure Type Manhole Cover
Application
Non-pressure Type Manhole Cover in food, wine, beverage, pharmceutical and other industries are also widely used in various types of atmospheric pressure tanks and containers to prevent leakage of liquid.
Working Principle
Non-pressure Type Manhole Cover is arranged on the pot body through a hinge, with the help of the handle can also make non pressure type manhole cover at an angle of 120 degrees within the scope of free open and close, convenient for maintenance staff check the tank.
Design Standard
Non-pressure Type Manhole Cover is different from the pressure type of manhole cover is only suitable for use under normal pressure, so generally only a fixed first round of the device, but its sealing performance is also superior.
Material Science
Steel parts: 304 or 316L
Seal: EPDM
