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Email : rae.w@feilong-group.com
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Tel : +86 188 2526 5625
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Address : Anhui, Hefei, China
Round Manhole Cover
CO Dia 300mm(11.8") F900 Heavy Duty Round Ductile Iron Manhole Covers with Hinge Apply to Airport
Material :
Ductile IronCustomization Logo :
SupportCertifications :
ISO9001,ISO14001,ISO45001,CEPaint and Color :
Bitumen PaintClear Open/Clean Aperture :
Dia 300 mmFrame Dimensions :
Dia 402 mm*80mmHinged :
YesProduct Introduction
Crafted from high-grade ductile iron via precision casting and heat treatment, this F900 heavy-duty round hinged manhole cover with 300mm clear opening (11.8") provides superior compressive resistance, impact toughness and long-term structural stability for extreme load scenarios. Compliant with BS EN 124 standard, the complete assembly includes cover and matching frame, with a 402mm overall frame diameter and 80mm frame height.
Built-in hinge design prevents accidental loss of the cover during maintenance, while the tight fit effectively eliminates rattling noise under frequent heavy vehicle passage. Featuring excellent wear resistance, anti-slip surface, oxidation and weather resistance, it maintains reliable performance under harsh outdoor conditions. Fully rated F900, it is engineered to withstand ultra-heavy loads, making it specially suitable for airport pavement, apron, cargo terminals and other heavy-load zones. It delivers stable long-term service with minimal routine maintenance.
Product Advantages







Airport Runways & Aprons

Military Facilities

Docks & Ports

Heavy Industrial Zones
FAQ
The F900 load class, as defined by the BS EN 124 standard, indicates that the manhole cover is engineered to withstand extreme test loads of up to 900kN. This makes our ductile iron manhole cover specifically suitable for ultra-heavy traffic zones. Typical applications include airport runways, aircraft aprons, military facilities, commercial docks, and heavy-duty port yards where extreme wheel loads are constant.
The built-in hinge design provides two critical advantages for demanding infrastructure projects. First, it securely attaches the 24kg cover to the frame, preventing accidental loss, dropping, or theft during routine underground maintenance. Second, it ensures a precision fit that eliminates dangerous displacement and rattling noises when heavy vehicles, such as cargo planes or container handlers, pass over it
Yes, our heavy-duty ductile iron products are manufactured under strict quality controls and are fully backed by CE, ISO9001, ISO14001, and ISO45001 certifications. As a direct manufacturer, we also support custom casting services. We can integrate specific municipal logos, utility labels, or project branding directly onto the anti-slip surface of the cover to meet your project's compliance requirements.
Add: Hanshan Industrial Area ( Lintou ), Maanshan City, Anhui Province, China
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