Hydraulic Cover

Cover and frame for a square sidewalk manhole.

U-shaped frame support, so that when the cover rests on the frame,

it forms a hydraulic seal.

Glass：B125/C250/D400

• Ductile iron.
• Non-slip surface.
• Black paint.

Square hydraulic manhole cover. From the appearance, the manhole cover has diamond-shaped patterns on its surface. This pattern design can effectively increase friction and play an anti-skid role. Whether it is pedestrians passing by or vehicles running over it, it can reduce the risk of accidental slips or skidding.

In terms of functionality, as a hydraulic manhole cover, it has a convenient opening and closing method. Through the hydraulic system, construction personnel can easily open the manhole cover when inspecting underground facilities, which greatly reduces labor costs and operating difficulties, and improves the efficiency of inspection work. When closed, the hydraulic system can ensure that the manhole cover fits tightly to the wellhead, ensuring its stability and effectively bearing the pressure brought by vehicles.

In addition, the manhole cover is well adapted to the matching well frame and can be tightly combined to prevent the manhole cover from shifting or shaking during use, further ensuring the safety of pedestrians and vehicles, and also helping to protect various underground pipelines and facilities. Its square design makes it easier to accurately locate the square wellhead during installation, and in urban planning and road layout, it can better coordinate with square pavements, sidewalks, etc.

Uses of this type of manhole cover: municipal pipeline inspection wells, heating and gas inspection wells, fire-fighting wells, various valve wells, etc.

Uses of this type of manhole cover: municipal pipeline inspection wells, heating and gas inspection wells, fire-fighting wells, various valve wells, etc.