Round sewage ductile iron manhole cover
• Shape: Round
• Material: Ductile Iron GJS500-7
• Duty Class: EN124 C250
• Frame Style: Bottom Flange
• Gasket Material: Neoprene
• Lock Material: SS304
• Coating: Black Bitumen
• Standard: EN124-2015
• Surface Pattern:Customized
• Surface text:Customized
Premium Round Sewage Ductile Iron Manhole Covers | Leading Supplier in China
As a top-tier supplier from China, we specialize in manufacturing round sewage ductile iron manhole covers engineered for wastewater management systems. Crafted with high-grade ductile iron, our covers deliver exceptional corrosion resistance, heavy-duty load capacity, and long-term durability in harsh sewage environments. Customizable sizes, airtight sealing, and anti-slip surfaces ensure compliance with global safety standards. Partner with our China-based supplier for cost-effective solutions, bulk production capabilities, and reliable OEM/ODM services. Competitive pricing, ISO-certified quality, and fast global shipping available. Enhance infrastructure resilience—contact us today for quotes and technical support on round sewage ductile iron manhole covers!
Details
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Material |
Ductile iron GGG50; Grey cast iron |
|
Standard |
ISO9001, EN124-2015 |
|
Scope |
A15, B125, C250, D400, E600, F900 |
|
Shape |
Round, Square, Rectangle, Triangle |
|
Diameter |
From 300mm to 1200 mm |
|
Weight |
From 5.5kg to 460kg |
|
Applicable |
Municipal construction, water supply |
|
Surface treatment |
Black bitumen coated |
|
Color |
Pitch black or as per customer’s requirement. |
|
Logo |
Any customized logo |
|
Usage |
Municipal roads, highways, communications, electric power, |
|
|
running water, village, schools and various kinds of the park. |
|
Packing |
Normal packing is iron pallet and plastic film |
|
|
or as per customer’s requirement |
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Minimum order |
1 Sets |
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Delivery time |
15-30 days after place an order |
|
Payment term |
L/C, T/T (30% in advance) |
|
|
and 70% balance after faxing the B/L copy in 3 days) |
|
Special requirement |
As per customer’s requirement. |
Main Specs
1. Application: municipal engineering, telecom, cable, petroleum, chemical industry
2. Load ability:A15, B125, C250, D400
3. Characteristic: high shock resistance and tensile strength, good welding properties
5. Standard: EN124,ASTM,DIN,,BS,JIS,ISO
6. Made of ductile iron casting & gray iron casting
7. Size: dia300mm----900mm ( according to clients' detailed drawings)
8. Color: as clients' requirements
Main Test
Anti-breaking strength (Mpa)>14
Impact toughness resistance (kg/cm2)>95
Tensile strength (Mpa)>10
Compressive strength (Mpa)>30
Modulus of elasticity (kg/cm2)>1.4*104
Cold-hot resistance measure<0.4
Water-absorption<1.0
