Welcome to Jinlong Foundry Group, we are a reputable manufacturer of top quality cast iron products.

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round lockable manhole cover

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Quick details

· 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


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


We supply round lockable manhole cover.

We devoted ourselves to casting industry for many years,has been exporting to Europe and Australia since 2001. 

We are expecting become your long team partner, OEM & OED is welcomed.


FAQ

How to choose suitalbe bearing Class?

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How to choose suitable dimension?

Mainly consider:the Clear Opening must match with the well.

Notice:Clear Opening must be a little bigger than the mouth of the well.

Because we need to make sure the frame base could pass the loading pressure to the ground.

Dimensions

Customer Required(300-1200mm)

Material

DuctileIron500-7

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.

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