drainage Pit cover is widely used in the urban road, the square, the botanical garden, the wharf, the airport, the parking lot, the road ,each kind of industry, the civil project, etc
1) This product has high load-bearing capacity and good anti- impact property.
2) Cover and frame are joined by hinge. It is anti-theft, safe and easily open.
3) Large area for water leakage with hot dip galvanizing surface treatment, attractive and durable.
4) Order instruction: Please strictly choose types according to requirements or make inquires from our company's business staff. Customers can choose types according to their requirements for different load and span. If customers choose improper specifications and types in order to reduce the investment, they will be responsible for them.
Drainage manhole cover (articulated) dimensions and heavy table:
Drainage pit length Draing cover type Size (MM)
Steel grating Frame
300×300 JRG I33-455 400 305 45 G455/30/100 50×50
400×400 JRG II44-455 500 395 45 G455/30/100 50×50
500×500 JRG IV55-405 600 515 40 G405/30/100 45×45
600×600 JRG IV66-405 700 605 40 G405/30/100 45×45
NOTES:
- the drainage pit length ronging from 300×300mm to 600×600mm
- a means the steel grating length
- b means the steel grating width
- h means the steel grating height
