Check Valve, Relief Valve and Suction Strainer Product Spotlight

A look at recent additions to our miniature check and pressure relief valves selection

A product overview of some recent ISM product releases.

  • JCV series compression by male NPT thread plastic spring loaded check valves.
  • NRVT series plastic in-line pressure relief valves.
  • NRV series natural nylon pressure relief valves.
  • CVNUCB series plastic spring loaded hose barbed check valves.
  • ISFSV series plastic valved suction strainers.

Watch this short video overview about these check valve and pressure relief valve featured products >>

Get tips and insights about check valves and how they work
Check valves, non-return or one-way valves, allow liquid or air to flow in only one direction. Manufacturers make them in a wide range of sizes and types. Tremendous varieties of applications use them to prevent costly or even dangerous backflow.

Even though check valves are widely used for everyday applications, the how and why of check valves and their different designs is not always well understood. Here is some additional information about check valves from the ISM blog:

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Some other, related blog posts

  • In-line Filters for Miniature Flow Control Component Protection >>
    How pairing miniature in-line filters with precision orifices and check valves in flow control systems can boost performance and helps improve reliability.
  • How Do Diaphragm Check Valves Work? >>
    Many small-bore low-pressure systems use plastic diaphragm check valves. This post describes how the two major types of low-pressure miniature and small bore diaphragm check valves work.
  • Five Tips for Selecting the Right Valve >>
    Learn some useful tips for selecting the correct type of valve for your application. Choosing the right valve begins with knowing the role it plays. Knowing its purpose plus a few more key considerations will simplify and speed up any valve selection process. These valve selection tips are a great place to start.
  • What is Cracking Pressure? >>  
    Get a better understanding of this critical check valve specification plus advice about selecting check valves. This includes details about how check valve cracking pressure affects reseal pressure and performance. This post also contains information about how check valve selection and sizing can help prevent premature wear.

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Are you developing a design for or maintaining a low-pressure (less than 125 psi, 8.6 bar) small-bore air, gas or fluid system? Then ISM has the valve for it.

Get a catalog and find out more about the miniature flow control and fluid management valves we carry.

Front cover of the ISM Miniature Flow Control Valves catalog. Click here to get the catalog.
The ISM Miniature Flow Control Valves catalog includes

  • Product specifications
  • Photos and rendered CAD images of the valves
  • Links to product pages in our e-commerce catalog


Check out our complete lineup of miniature flow control valves.

Keep in mind we carry thousands of miniature flow control valves. Plus, thousands of related products like connectors, adapters, gauges and so on.

Get the catalog

Learn more about the different types of miniature flow control valves you can get from us.

A sample selection of the types of miniature flow control valves carried by ISM.

Diaphragm Check Valves  |  Spring Loaded Check Valves  |  Duckbill Check Valves  |  Plastic Push-In Check Valves  |  Ball Check Valves  |  Piston Check Valves  |  Poppet Check Valves  |  Modular Check Valves  |  Plastic Ball Valves  |  Brass Ball Valves  |  Stainless Steel Ball Valves  |  Needle Valves  |  Metering Valves (Needle)  |  Metering Valves (Flow Control)  |  Button-Pilot-Shuttle-Toggle Valves  |  Stopcocks  |  Plastic & Metal Relief Valves  |  Regulators  |  Pinch Valves