Round lockable 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
Secure Round Lockable Ductile Iron Manhole Covers | Trusted Foundry & Supplier
As a specialized foundry and leading supplier, we produce round lockable ductile iron manhole covers designed for enhanced security and durability. Engineered with anti-theft locking mechanisms and premium C250-grade ductile iron, our covers excel in load-bearing capacity, corrosion resistance, and long-term performance for urban, industrial, or high-traffic zones. Customizable sizes, surface patterns, and locking systems ensure compliance with global safety standards. Partner with our foundry for precision casting, bulk-order efficiency, and competitive pricing. Reliable supplier support, fast delivery, and certifications included. Secure your infrastructure—contact us for quotes and technical details today!
Details
|
Dimensions |
Customer Required(300-1200mm) |
|
Material |
Ductile Iron 500-7 |
|
Application |
construction , public road,drainage system etc |
|
Model Number |
NPF600C |
|
Brand Name |
CastKing or OEM |
|
Place of Origin |
China (Mainland) |
|
Color |
black, grey, etc |
|
Standard |
EN124-2015 |
|
Loading Pressure |
A15, B125, C250, D400, E600, F900 |
|
Coating |
black bitumen coated,epoxy painting |
|
Type |
ROUND |
|
MOQ |
1 set |
|
Technique |
Moulding pressing |
|
Longivity |
30~50 years |
|
OEM service |
Yes |
|
Package |
pallet and wooden case, or as per customers' requirements. |
Ductile Iron Manhole Cover features:
1. High strength:The tensile strength of ductile iron is more than 420Mpa and the yield strength is more than 300MPa, three times more than gray iron.
2. Good toughness: impact value is similar to carbon steel and 10 times than grey iron.
3. Good plasticity. Elongation of ductile is more than 7% which is similar with high-carbon steel, gray iron material and extend rate is zero.
4. Anti-corrosion resistance: The corrosion was only 0.25 times of pipes during ninety days spray corrosion test and 0.1 times of gray iron pipes. The life is 2 times longer than gray iron pipes and 5 times longer than ordinary steel pipe.
5. Applied In most municipal applications: water, salt water, steam, the corrosion resistance and oxidation resistance of cast iron are more than steel. Because of the spherical graphite cast iron microstructure, ductile iron does better than steel in reduced vibration capacity.
Advantages of ductile iron manhole cover:
1. Low-cost
2. High strength,
3. Toughness,
4. Lighter weight
FAQ
