Emergency Ventilation: Manholes are commonly used safety devices in industrial production, primarily installed on the top of storage tanks. They are used to prevent uncontrolled gas from overpressurizing the tank. They are typically used in conjunction with flame arresters, breather valves, and other devices for emergency use.
Standard-pressure manholes are unpressurized manholes, typically installed on the top of the tank, and serve as entry and exit points for construction and maintenance workers during tank construction, cleaning, and unloading.
Safety Protection: Standard-pressure manholes offer advantages such as constant-pressure discharge and intake, flexible opening and closing, fire protection, excellent sealing performance, and reliable safety. They are widely used for safety protection of various storage tanks.
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