A duckbill check valve for stormwater is an integral part of a stormwater

If you have a stormwater system that needs to be regulated, choosing the right stormwater check valve is vital to its success. The many different types of check valves available can make a huge difference in how efficiently water flows through the system. In this article, we’ll talk about the Tideflex, the Duckbill, and the Knife gate valve.

Duckbill check valve

A duckbill check valve for stormwater is an integral part of a stormwater drainage system. It prevents backflow in cases of high water levels in a retention basin. The duckbill design prevents backflow by releasing the flow at low head pressures (generally less than 30 feet). A duckbill check valve is made of a rubber matrix that functions on differential pressure. It can be installed on both vertical and horizontal pipes.

Duckbill Check Valves are made of durable, rubber materials and are capable of handling large obstructions. They guarantee trouble-free backflow prevention. Because they are made of high-quality materials and engineering elastomers, they provide high-performance performance and tight seal. These valves are designed to resist corrosion and rust and to provide backflow prevention while maintaining minimal backpressure.


Tideflex stormwater check valves protect stormwater outfalls from surcharging and provide reliable backflow prevention. These valves are non-mechanical, which means they require little or no maintenance and are proven to last a very long time. Unlike traditional P-traps, they do not suffer from clogging and can prevent the backflow of sewage, which can lead to costly damage to both the system and the surrounding environment.

The Tideflex CheckMate(r) Inline Check Valve was designed to solve this problem. It is inserted into the pipe and is pressed in by a stainless steel expansion clamp. The check valve is sealed in against up to 40′ of backpressure and prevents a surge path. It is virtually unnoticeable by residents and has a high degree of flow regulation.

Plug valve

When it comes to controlling stormwater, choosing the right check valve is vital. Increasingly, utilities and municipal authorities are trying to limit the damage caused by excess water. With stormwater check valve the increase in precipitation levels, they need a way to reduce the cost of maintaining their infrastructure and reduce the health risks associated with excess water. Luckily, there are a number of options when it comes to determining which check valve is best for the job.

PROCO 711/731 ProFlex(tm) check valves offer a variety of features that help make installation easier. For example, the bottom of the valve slopes very little, which makes it ideal for low-sloped systems. They also come with optional drilling patterns. Plus, their ANSI/NSF-61-compliant construction ensures that they can withstand any temperature.

Knife gate valve

Knife gate stormwater check valves are an excellent option for stormwater applications. These devices offer reliable operation and long service life in harsh environmental conditions. These products can be found in stainless steel and cast iron. They feature an airtight seat and are designed to minimize leakage during use.

These valves are available in various styles, including manual, electrical and mechanical models. The manual model utilizes a hand wheel to operate the valve while the electrical model utilizes a stepper motor or pneumatic cylinder. A knife gate valve’s gate and body are usually made of stainless steel, although mild steel is also sometimes used for cost reasons.