What’s Your Application Need?
Choosing the right valve is critical. Keeping this in mind, Aladco® incorporates varying design and function throughout our pilot operated check valve line to meet a variety of application needs. In fact, every valve we produce is rigorously tested and backed by our standard 3-year warranty. Whether your application needs a single or double check valve, we have it covered, and to further assist your selection, each product page contains application examples, technical specifications, product options, and schematics.
Single Check Valves: Aladco® single pneumatic check valves trap air in one-side of cylinder or actuator with the pilot operation able to relieve the pressure of the cylinder or actuator, which can also be accomplished by our patented manual override button.
Double Check Valves: Aladco® double check valves use two check valves in the same body. Double check valves trap air in both sides of a cylinder or actuator and the pilot operation automatically pilots the opposite check allowing the cylinder to move. Our patented manual override relieves the air on both sides of the cylinder or actuator. One manual override button creates a better-controlled and safer release of air because it relieves air from both sides of the cylinder simultaneously.
Nu-Check®
3-Series, Single Check
The Nu-Check® valve, designed specifically for pneumatics, is a patented Aladco® product. It was the first check valve on the market with both manual and pilot release capabilities. The unique bubble-tight seal keeps devices in “checked” position.
Clean-Check®
5-Series, Single Check
The Clean-Check® valve, designed specifically for pneumatics is a patented Aladco® product. It is a normally closed check valve that can be overridden manually or by air piloting to allow two-way flow. The valve is fully sealed for use in sanitary or harsh/dirty environments.
Equa-Check®
4-Series, Single Check
The Equa-Check® valve, designed specifically for pneumatics, is a patented Aladco® product. The pilot pressure is balanced by the IN chamber pressure. Primarily used for applications where two-way flow is desired by maintaining pilot pressure higher than inlet pressure.
Dual-Check®
6-Series, Double Check
The Dual-Check® valve, designed specifically for pneumatics, is a patented Aladco® product. It is the only parallel check valve that can be manually overridden with an internally plumbed air pilot or a single override button that releases both sides at once.
Know What You Are Looking For?
Aladco® pneumatic check valves are only sold through authorized distributors, both nationally and internationally. Aladco® has formed close partnerships with reliable, professional distributors who can assist with application and verify that all Aladco® orders are delivered on-time, correctly, and with care. To ensure you receive the correct valves, please use the product model ordering information located on each pneumatic check valve page.