MANHOLE FRAMES & COVERS

Whether by car or on foot, chances are you’ve traversed a Neenah Foundry manhole cover. Millions of our flagship products can be found in cities all across the country. We manufacture cast iron manhole frames and covers in various sizes, shapes, and designs, including logo customization.

New Product Introduction

Click here to learn about our latest innovative new product, InfraLOCK™ High-Security Locking Manhole Solution, designed to protect the nation’s underground infrastructure.

THE NEI DIFFERENCE

Reliable Infrastructure Protection

Prevent unauthorized access to underground infrastructure, reducing the potential for damage, theft, and other liability.
Improve the ability of utility companies to keep property safe, including during a manhole event.

Ensure Worker Safety

Eliminate many traditional hazards of working with covers, including deadlifting.
Prevent accidental closure with innovative features such as automatic hold-open arms.

Lack of Maintenance Reduces Total Cost of Ownership

There is no need for costly and time-consuming replacements.
Eliminate maintenance problems associated with delamination from concrete
Avoid ultra violet degradation common with composite covers.
We ensure inventory is available when you need it.

CONTROLLED PRESSURE RELEASE (CPR) MANHOLE COVER

Improve the ability of utility companies to keep people and property safe during a manhole event.
Prevent unauthorized access to the underground infrastructure, reducing the potential for damage and theft.
Mitigates the damage caused by underground explosive events, including those caused by flying covers. CPR covers do not leave the frame during an event.

THE LIFTMATE™ BALL-AND-SOCKET HINGE SYSTEM

Delivers true one-person operation with the patented controlled-motion pivot.
Eliminates many traditional hazards of working with covers; no deadlifting is required to close the cover.
Uniquely engineered ball-and-socket hinge provides full support when opening and closing.
Automatic hold-open arm helps prevent accidental closure.
Simplifies and eases operational access.
Excellent strength and wear resistance making it almost indestructible.

HYDROVENT™ MANHOLE COVERS FOR SURGE RELIEF

Designed using LiftMate™ ball and socket hinge system technology, coupled with a heavy-duty latching mechanism.
Gray iron construction provides fatigue-resistant durability with noise suppression.
Superior gasket design and material selection provide water inflow resistance.

Click below to view a video on the HydroVent™ manhole cover in action, providing surge relief due to the sewer system becoming surcharged.

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