Double-Layer & Anti-Theft Lockable Manhole Covers

Product Description

Heavy-Duty Double-Layer & Anti-Theft Lockable Manhole Covers

As a professional municipal casting manufacturer, we offer ultimate security and functionality with our Double-Layer & Anti-Theft Lockable Manhole Covers. Specifically engineered for high-security areas, municipal networks, and deep sewer systems, this dual-layer design provides an unparalleled level of protection against unauthorized access, vandalism, and accidental falls.

Constructed from high-grade Ductile Iron (GGG50) in strict compliance with the EN 124 standard, these covers feature a robust outer cover combined with a secure inner protective layer (or safety netting/grating). Equipped with specialized heavy-duty locking systems and captive hinges, they ensure total anti-theft security while remaining easy to operate for authorized maintenance personnel.

Key Features:

• Dual-Layer Maximum Security: The inner layer acts as a reliable secondary barrier, preventing personnel or debris from falling into the well even if the top cover is opened or compromised.

• Advanced Anti-Theft Locking: Integrated with high-security mechanical locks and tamper-proof keys to eliminate the risk of theft and vandalism.

• Superior Sealing & Odor Control: The double-layer structure, combined with premium rubber gaskets, delivers excellent waterproofing, gas-tightness, and odor control.

• Heavy Loading Performance: Fully compliant with EN 124 Classes C250 and D400, making them highly reliable for urban roads, highways, and commercial zones.

Specifications:

• Standard: EN 124-2

• Material: Ductile Iron GGG50 (QT500-7)

• Load Class: C250 (25t) / D400 (40t)

• Structure: Double-Layer (Outer Cover + Inner Secure Grate/Plate)

• Coating: Black Bituminous Paint / Anti-Corrosion Epoxy Coating

• Customization: Supports custom locking mechanisms, special dimensions, and OEM logo casting.