Xianxian Shuangxing Casting Co., Ltd.
Xianxian Shuangxing Casting Co., Ltd.
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Square Type Ductile Manhole Cover Balck Painted Anti Rust EN124 D400
| Standard: | Uni En124 |
| Deformation Temperature: | Isothermal Forging |
| Molding Style: | Stamping |
| Molding Technics: | Pressure Casting |
| Casting Method: | Sand Casting |
| Standard | EN124 |
| loading Class | A15,B125,C250,D400,E600,F900 or equal standard |
| Coating | black bitumen or Fusion bonded epoxy powder coating; |
| Material grade | Ductile Iron GGG500-7 ,Grey Iron GG20 |
| Accessories | Gaskets, bolts and nuts, Spring , Lock system |
| OEM | YES |
| Size | Customer’s drawing |
1. Shallow manhole
It is provided at shallow depth of 75-90cm (2'-3'). It is provided at the beginning of branch sewer or at a place not subjected to heavy traffic. It is provided with a light cover at its top it is also called inspection chamber.
2. Normal Manhole
It is provided in sewer line at depth of 150cm with a heavy cover on its top. It is generally of square shape (or rectangular shape).
3. Deep Manhole
They are provided at depth greater than 150cm with heavy cover at the top. The size is gradually increased and a facility for going down is provided.