Smart Products USA is proud to offer a wide array of custom check valves that feature tailored components, precise opening pressures, and nearly unlimited application possibilities, exclusively for those of a low-pressure, low-flow nature. Among our product offerings, we can supply check valves for air compressors to help ensure that your systems operate functionally, reliably, […]
Did you know? Most Smart Products USA Check Valves are also Pressure Relief Valves

Practically all of our check valves have a dual role as pressure relief valves. The reason some customers might not realize you can use our valves for anything other than a check valve is because flapper, disc or ball type check valves don’t have a spring to resist pressure in the flow direction. These valves […]
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BACK TO BASICS: VALVES 101

If you have new people in your organization that need a primer on check valve operation, let us take you back to the basics. At Smart Products USA, you will find 40 years of experience working with check valve operation in countless low flow, low pressure environments. Check out the link below for a 1:40 […]
Buna vs. Viton® O-Rings: What Are the Differences?

O-rings are essential components in countless applications, providing reliable sealing abilities in diverse products and being made from many different materials. Two of the most commonly used materials for O-rings are Buna and Viton®. While both offer unique advantages, they also differ in terms of performance, cost, material composition, and more. We’ve created this guide […]
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Brake Systems + Our Valves

Due to the customizable nature of our valves, we serve all industries with low pressure, low flow control needs. This eBlast focuses on power brakes within the automotive industry. If you’re looking for consistent vacuum levels for brake systems, we have a wide range of experience in this area. For 40 years, we’ve supplied check / pressure relief […]
Model #110: Standard Cartridge 1/4″ – Millions sold and used worldwide
A standard in our family of cartridge check valves, the Model #110 has a long history of reliability, as well as a variety of choices in plastic materials, o-ring compounds, and spring pressures. Fitting into size O.D. 1/4″ (6.35mm), the #110 could be the perfect solution to your low flow, low pressure application. Pictured above […]
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Brrr! Customizable Components Ideal for Frigid Environments
As much of the United States continues to deal with winter weather, we are reminded that there’s cold and really cold. At Smart Products USA, we work with many customers with application requirements that must operate in frigid temperatures. From our years of experience, we are able to recommend plastic and o-ring materials with characteristics able […]
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Model #361 Smooth Stem for Quick-Connect Fittings + More
Looking for a check / pressure relief valve solution to work with quick-connect fittings including 3/8” push-to-connect for air or fluid lines? Our Model #361 features a smooth stem and easily inserts into these options, and it also works in 3/8” tubing using a variety of clamping mechanisms. This versatility makes the #361 ideal for […]
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From Air Compressors to Underwater Diving Equipment, Check Valve Model #132 is a Popular Flow Control Option
One of our best sellers, the Model #132, features exterior o-rings to secure it in-line and provide an extra barrier against leaks. Adhesives are also not necessary due to the sealing capabilities of the external rings. Popular in any industry, we’ve seen it used in a wide variety of applications to include: brake systems for […]
Check Valves in Ultem
Looking for low pressure, low flow check / pressure relief valves able to withstand high-heat or ozone? Ultem® may be the ideal plastic body material choice for your application. Known as a semi-transparent plastic, Ultem® is a great option to meet high-heat, flame, or solvent resistance requirements. This material is also compatible with a variety […]