About Series 500 Mini Check Valves

Compact and tamper-resistant, our Series 500 miniature modular check valves feature a one-piece design. This series allows you to combine any two end fittings or use the same configuration on both ends. Easily mounted in-line for liquid or air applications, our miniature check valves eliminate the leak prone adapter seen in other valves by combining the fitting and check valve in one piece.

Custom Mini Pressure Relief Valves: Mix and Match End Fittings

At Smart Products USA, all of our valves are customizable! Custom options for our Series 500 micro check valves for meeting specific application criteria include:

  • Plastic body material
  • O-ring material
  • Opening spring pressure

Small check valve connections include hose barbs in 1/16” or 1/8” sizes and male or female luer styles to accommodate a wide range of applications.

Contact Us

Drop us a line and we’ll get back to you quickly! Fill out the form or call 1-800-338-0404 for more information.

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Model #500

Barbed: 1/16"

Fits Tubing I.D.: 1/16" (1.58mm)

Body Materials: Polypropylene, PVDF, Polycarbonate, Ultem® - pictured

O-ring Options: Buna-N, EPDM, Viton®, Silicone, Fluorosilicone

Spring Pressure:0.09 - 20 PSI

Model #502

Barbed: 1/8"

Fits Tubing I.D.: 1/8" (3.18mm)

Body Materials: Polypropylene, PVDF, Polycarbonate - pictured, Ultem®

O-ring Options: Buna-N, EPDM, Viton®, Silicone, Fluorosilicone

Spring Pressure:0.09 - 20 PSI

Model #541

Female Luer Lock

Body Materials: Polypropylene - pictured, PVDF, Polycarbonate, Ultem®

O-ring Options: Buna-N, EPDM, Viton®, Silicone, Fluorosilicone

Spring Pressure:0.09 - 20 PSI

Model #542

Male Luer

Body Materials: Polypropylene - pictured

O-ring Options: Buna-N, EPDM, Viton®, Silicone, Fluorosilicone

Spring Pressure:0.09 - 20 PSI

Why Smart Products Is the Top Choice for Small Check Valves

When it comes to selecting the top manufacturer for miniature check valves, Smart Products stands out with our unwavering commitment to quality and customization. Explore what sets us apart below.

Customized Solutions for Any Industry

We provide custom solutions to meet a variety of application requirements. Whether you need a custom compact pressure relief valve, a unique size, or specialized material for compatibility, our range of offerings has you covered.

We proudly manufacture miniature check valves and our other products for a variety of industries, including:

Made in the USA with the Highest Standards

All our check valves, including our micro check valves, are designed and manufactured in the USA, ensuring top-notch quality, faster delivery times, and exceptional performance. By keeping our operations domestic, we maintain greater control over the production process, allowing us to consistently meet the high standards our customers expect.

Our USA-made small check valves, along with our entire product line, provide key benefits that include:

  • Corrosion resistance for long-lasting durability
  • Precise performance to meet exact application requirements
  • Economical designs that don’t sacrifice quality
  • Highest manufacturing standards to ensure reliability

Industry-Recognized Standards and Superior Compliance

We are proud to be ISO 9001:2015 certified, a globally recognized standard for quality management. Our miniature check valves and other products meet strict industry standards to ensure optimal functionality and reliability.

Key features of our products include:

  • FDA and NSF compliance – Ensuring adherence to strict health, safety, and sanitation standards
  • Rigorous quality control – Ensuring every valve is reliable, durable, and built to perform

Contact Smart Products for Compact Pressure Relief Values Today

Explore our full collection of miniature check valves and connect with our team for expert guidance on customization and solutions tailored to your project’s specific needs. We are happy to help you find the perfect fit!

Note:

Dimensions on this page are based on Polypropylene material. These are typically held to a +/- 0.005″ tolerance. Keep in mind different plastics have different shrink rates and may vary from these tolerances. Our products are subject to continuous improvement. To achieve this goal, Smart Products 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 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 the 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.