Manhole presses can effectively seal manholes to prevent gas or liquid leakage. This is crucial to ensure the safe operation of equipment.
A flat ring or circular fitting used to connect two pipes or connect a pipe to a device. It usually consists of two matching flanges and some bolts and gaskets. Flanges are used to connect pipes and equipment, and are used in gas, water, and drainage systems.
The hinge design allows the manhole cover to open and close freely within a certain range of angles, facilitating access and maintenance. The hinge typically consists of two parts, one welded to the cover and the other to the manhole, and connected by a pin. This design not only ensures the stability of the manhole cover but also increases safety.
The main function is to ensure the tight closure of the manhole cover to prevent leakage. It can firmly fix the manhole cover to avoid accidental opening due to vibration or pressure changes.
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