Smart Products USA offers 9+ plastic body materials for our valves. Below is a basic overview of each. For optimal valve performance, it is important to discuss all liquids/gasses coming into contact with the valves, as well as environmental conditions with a Product & Application Specialist. Once we select a plastic, o-rings, and pressure requirements, we can create test samples based on a specific project criterion.
If your application requires color coding for ease of assembly, click here to learn more about this option.
Questions? Contact us here or call 1-800-338-0404.
Polypropylene can be found in a wide variety of plastic products from chairs to toys, but it is especially valued by us as the go-to material for our check valves. In fact, approximately 75% of our check valves are created in polypropylene because it will work in most applications (appeals to engineers) and remains an economical choice (bonus for purchasers). We also have the capability to produce polypropylene in a variety of different colors for applications that call for color coding.
Nylon 6 typically works best for air/gas applications that require a slightly higher heat resistance versus other plastics. If your application operates at a temperature range over 180° F, Nylon 6 is an ideal option because it works well up to 250° F. Smart Products manufactures Nylon 6 in black and natural; the black color option is ideal for customers who want the valves to blend in with a particular application.
Note: Nylon is not recommended for liquid applications because it tends to swell over time.
Acrylic is transparent, very strong, and ideal for hot or cold environments. And, it is the best plastic choice for applications working with mineral oils.
Acetal is a solid choice if you are looking for a compact, high-resistance valve that can withstand tough environments.
PVDF (Polyvinylidene Fluoride) also known as Kynar® is a great choice for applications requiring the highest purity, strength, and resistance to solvents, acids, bases, and heat, as well as smoke generation in the event of a fire. For devices dealing with ozone, this plastic is the number one option.
High impact, high temperatures, and semi-transparent are all excellent attributes of polycarbonate, but it’s the biocompatible ISO 10993 compatibility rating that makes this plastic an ideal choice for medical applications.
Ultem® is your go-to plastic when your application requires high heat, flame, or solvent resistance. This plastic also has an added bonus of being EU, Class VI, or ISO 10993 compliant.
ABS is an ideal body material for applications exposed to really cold environments.
Note: ABS is only recommended for short term use with weak acids, and it is not a good choice for strong acids and solvents, ketones, aldehydes, esters, and some chlorinated hydrocarbons. For customers who require gamma radiation, we tested ABS for this type of exposure, and it received an “A grading,” which means it had no visual or functional changes. However, note that ABS cannot be autoclaved and has a low UV resistance. Valves in ABS are typically created via injection molding, but this plastic also does really well with ultrasonic welding.
Radel® is known for its ultra high toughness and ability to withstand high temperatures.
Gamma Radiation Effects at High Dosage (39.9kGy)
|Nylon (Natural)||Color Change||None||B|
|PVDF (Kynar)||Color Change||None||B|
A = No Visual or Functional Effects
B = Only Visual Effects
C = Only Minor Functional Effects
D = Visual & Minor Functional Effects
F = Major Functional Effects
For customers using multiple valves in one device or in need of easy installation of a modular valve, Smart Products USA offers color coding solutions.
Over the years, we have worked with applications that require the same valve model, but in different locations of a device. Thus, the easiest assembly option is to color code.
Some of our Series 100 Specialty Valves may require color coding if they are used together in the same device because they look similar, but are intended for reverse flow; these include: Barbed Model #111 & 118, Male NPT Model #103 & 109, Flanged Side Seal Model #154 & 191.
Additionally, if you use our Series 300 Modular Valves or our Series 500 Miniature Valves, we can color code the inlet and outlet to ensure it is installed correctly in your device. For example, instructions reading “install red side first” may be clearer versus “install barb side first” to an assembler.
Smart Products USA offers color coding in every series of our valves. The standard material we color code with is Polypropylene. Typical colors available are white, brown, purple, yellow, green, and orange. Series 300 offers red, blue, and white only in polypropylene. We can also color code our other plastic body materials if your device requires it.
Connect green valve to Section A and purple valve to Section B.
Connect 3/8" valve to Section A and 5/16" valve to Section B.
Connect purple end to Section A and orange end to Section B.
To connect to Section A, insert 1/16" end first. 1/8" end connects to Section B.
Insert green valve in Tube A, orange valve in Tube B, and white valve in Tube C.
Insert Model #154s in Tubes B and C. Insert Model #191 in Tube A.
The red valve opens at 0.17 PSI. The white valve opens at 9 PSI.
The smaller valve opens at 0.17 PSI. The larger valve opens at 9 PSI.
Note: Our products are subject to continuous improvement. To achieve this goal, Smart Products USA reserves the right to change features, processes, materials, testing and other specifications as necessary. All plastic body material recommendations are based on standard corrosion resistant and compatibility guides. Smart Products USA strongly recommends that customers test products for each application-specific use. Buyer is urged to test and investigate the compatibility of any substance used with our products prior to actual use. Seller will not be responsible for the failure of Buyer to thoroughly test and investigate the compatibility of the substances used with our products and the fitness of the products for its particular use or application.