Overview of Inlet Frames & Grates
Inlet frames and grates play a crucial role in stormwater management by directing runoff into drainage systems. The grates also help prevent debris from entering the pipes, minimizing the risk of clogging and ensuring efficient water flow. When investing in inlet frames and grates, it’s vital to prioritize durability, fit, and hydraulic performance.
What Are Inlet Frames and Grates?
Inlet frames and grates are mentioned together, as they are complementary components. The inlet frames provide a supporting base and seating for inlet grates, which control debris and take in surface water. Cast iron is the standard inlet and grate material, as it provides long-term performance and durability in municipal environments.
What Are Inlet Frames and Grates Used For?
Inlet frames and grates collect surface runoff and direct it into stormwater systems. They are designed to address:
- Ponding
- Roadway flooding
- Pavement deterioration
Inlet frames and grates can be installed in a wide range of locations, including:
- Streets and intersections
- Parking lots
- Curbs and gutters
- Sidewalks
Green infrastructure also makes use of inlet frames and grates for rain gardens, retention ponds, and other environmentally-focused designs.
Types of Inlet Grates
There is a variety of inlet grates available, which makes it easy to identify the ideal setup for your intended use case.
Catch Basin Grates
Catch basin grates are installed at low points in roadways or parking lots to efficiently collect surface water. They can also be used in curbs or configured as combination inlets with a curb box, providing versatile stormwater management solutions.
Roll Grates
Roll grates are designed for installation in driveways, parking lots, and other vehicular areas, allowing vehicles to pass over them without obstruction. Their robust construction ensures durability under heavy traffic loads, while the open-bar design effectively channels surface water into the drainage system.
Specialty & Green Infrastructure Inlet Grates
Municipalities are increasingly adopting green stormwater management strategies, driving demand for specialty inlets. Cast iron products, such as beehive grates and linear trench drains are commonly used to support rain gardens and retention ponds. They help filter out debris while efficiently directing water into stormwater management systems, combining durability with environmental functionality.
Key Features of Neenah Foundry Inlet Frames & Grates
Neenah Foundry’s cast iron delivers in several areas.
Strength & Load Performance
Our cast iron inlet frames and grates are engineered to withstand demanding traffic loads. They hold up in high-intensity environments, including:
- Roadways and intersections
- Commercial parking areas
- Heavy-use municipal environments
Neenah’s products are designed to meet AASHTO M 360 requirements. They resist cracking and deformation under repeated loading conditions.
Hydraulic & Safety Considerations
Hydraulic performance directly affects system capacity and surface drainage effectiveness. Our experts work closely with clients to identify key capacity and safety concerns, which allows us to deliver optimal solutions. Neenah Foundry also offers ADA-compliant designs and can address bicycle safety concerns where applicable.
Customization & Compatibility
Neenah Foundry offers inlet frames and grates in a wide range of sizes and configurations. Our team can collaborate with you to select or design inlets tailored to meet your unique drainage requirements and site-specific considerations.
Why Choose Neenah Foundry for Inlet Frames & Grates?
For decades, Neenah Foundry has been a staple of the stormwater management industry. Our U.S.-based manufacturing facilities allow us to exercise tight quality control and deliver products that exceed expectations. You can find the ideal product for your project, thanks to our breadth of offerings.
When you need a reliable partner for municipal, DOT, or infrastructure projects, Neenah Foundry rises to the occasion.
FAQs: Inlet Frames & Grates
What Are Inlet Frames and Grates?
Inlet frames and grates are drainage components that capture runoff and direct it into underground stormwater systems.
What Are the Different Styles of Grates?
Grates are available in combination inlets with curb boxes, beehive style, and ADA-compliant patterns, to name a few. Neenah Foundry’s team can help you identify the right grate style for your project.
What Materials Are Inlet Frames Typically Made From?
Most inlet frames and grates are typically manufactured from gray iron. However, Neenah Foundry can also produce ductile iron versions for high-strength applications, such as airport projects, and steel options when required to meet specific regulatory specifications.
How Do I Choose the Right Inlet for My Project?
Consider the size, location, traffic load, and water flow requirements of your project.
Are Inlet Frames and Grates Customizable?
Yes, Neenah Foundry offers different sizes, grate styles, and configurations to meet your project requirements.
Where Are Inlets Commonly Installed?
Inlets are commonly installed in streets, intersections, parking lots, and sidewalks. They are becoming increasingly prevalent in green infrastructure as well.
How Do Inlets Support Stormwater Management?
Inlets intercept water runoff at the surface to reduce puddling. The grates catch debris to prevent clogs in stormwater piping.
Do Inlets Require Maintenance?
Yes, occasional maintenance is required. You should periodically inspect your inlets and remove any debris.
Explore Inlet Frames & Grates From Neenah Foundry
Browse Neenah Foundry’s full selection of inlet frames and grates to find solutions that meet your project’s requirements. Contact our team to learn more.