March 2018 - Issue 202
e-news for Flow Control Solutions



D2P Atlanta
Atlanta, GA
March 28 & 29
Cobb Galleria Centre
Booth #126
More Info

D2P Santa Clara
Santa Clara, CA
May 23 & 24
Santa Clara Conv. Center
Booth #102
More Info
How does a check valve work?

Smart Products Catalog PDF

Brrr! Customizable Components Ideal for Frigid Environments

As much of the United States thaws out from this last blast of winter weather, we are reminded that there is cold, and then there is really cold. Frigid temperatures remind us here at Smart Products USA that many of our customers have applications that must operate in temperature extremes. From our years of experience, we are able to assist customers who require exposure to cold environments by recommending a plastic body and o-ring material with characteristics able to withstand these extreme conditions.

With every check or pressure relief valve we create, we have 9+ plastic body materials and 7+ o-ring materials to meet a wide variety of design needs. Our vast knowledge of each material helps us select the ideal components.


For plastics, cold environments can often make them brittle; they will still work, but their tensile strength is affected. Thus, we often recommend valves in acrylic (pictured above in Model #170) because it is a very strong material with a good tensile strength. Additionally, acrylic goes as low as -76°F. Another plastic recommendation for cold temperatures is ABS (pictured above in Model #160). This material will go as low as -4°F. 

Paired with either of the above materials, all of our o-ring options work in negative temperatures. We typically recommend silicone or EPDM for ultra-cold environments, but a more specific suggestion on all materials will depend on the application criteria. Keep in mind, o-rings become stiff in cold temperatures and may not seal as well, which could affect the valve's performance. Silicone is an o-ring material we most recommend due to its excellent rating for sealing versus other o-ring materials. This particular material seals best because its compounds are very soft and will seat better with poppets and/or external bodies. Silicone o-rings have a minimum temperature around -65°F. EPDM is also popular o-ring material for cold conditions, and it has a minimum temperature around -60°F.

Please note, the above information is a general recommendation of materials we have seen be successful with low temperature environments. As always, Smart Products USA strongly advises that customers test products for each application-specific use. To ensure we create the right valve for your device, it is important to communicate any liquids/gasses used, application environment, and intended shelf life with us.

For questions or to order, contact a Product & Application Specialist at 1-800-338-0404 or

To view a PDF of our entire product catalog, click here.

Check out our feature in Design World magazine

Click here to view online.