Airtight Manhole Cover
Material: cast iron, ductile iron
GJS500-7 & EN124
Size: customized or standard
LOGO embed: available
Loading ability: from B125 to F900
Certification: CE, ISO
Product Description
We are manufacturer for making Airtight Manhole Cover; Our manhole covers produced and tested according to EN124 standard;
Castking has more than 800 workers and 2 advanced produce line, can make more than 1000pcs manhole covers each day.
Since 1993, we started to produce Airtight Manhole Cover, now, we have exported cast iron covers and frame to more than 50 countries and regions.
Airtight manhole cover has a good sealing effect, built-in sealing ring, as one of the commonly used manhole cover choices in the communications, power and other industries. The common ones are rectangular, round or square.
The built-in sealing strip is made of rubber, which can not only have airtight characteristics, but also reduce the noise when the car is pressed.
Hing and lock can be installed to prevent other personnel from opening the manhole cover. The material of the manhole cover is nodular cast iron, which can be used for more than 30 years.
Specifications
| Dimension | Details |
| Shape | Round |
| Diameter | from 200-1500mm |
| Depth | from 10-400mm |
| Material | Ductile iron GJS500-7 |
| Loading ability | EN124 |
| Customize | Available |
| Lock | Lock and hinge available |
| Size | Cutomized size and shape available |
Loading class
Manhole cover loading class, there are 6 different class accoring to EN124 standad, it`s A15, B125, C250, D400, E600, F900. Different loading class means different application. Normally, A15, B125, C250 for pavement, depestrain, park; D400 E600 for main road and highway; E600-F900 for airport, dock.
| Group | Loading class | Application |
| #. Group 1 | A15 | Pedestrain, pavement |
| #. Group 2 | B125 | Driveway |
| #. Group 3 | C250 | Car parks |
| #. Group 4 | D400 | Main road, highway |
| #. Group 5 | E600 | Industrial area |
| #. Group 6 | F900 | Docks & airport |