Check Valves: The Key Component for One-Way Flow and Backflow Prevention

In pneumatic systems using One Touch Fittings, the name of a check valve can vary depending on the region, usage habits, and application environment.

• Americas, Europe, Australia & Middle East: 
  Commonly called Check Valve or Non-Return Valve (NRV), it prevents backflow and protects the system from pressure shock.
• Japan:
  Referred to as 逆止弁 (Gyaku-shiben) or チェックバルブ(Check Valve), meaning “focused on flow direction and pressure stability.”
• Southeast Asia:
  Generally uses Check Valve or One-Way Valve, aligning with Western naming standards for cross-border equipment integration.

Industry Naming Preferences
Different industries use different names—like Check Valve in semiconductor/automation and One-Way Valve in automotive—but the function is the same: keep the air moving forward and stop it from flowing back.

Core Product Features & Technical Advantages
SHPI Check Valve Series — built for all pneumatic systems, delivering stable flow, safety, and durability.

• One-Way Flow / Backflow Prevention
  The valve allows air to flow only one way and closes instantly when flow reverses — preventing backflow, keeping pressure stable, and improving efficiency in automated and industrial systems.

• Clear Air Flow Marking
  Engraved symbols show flow direction and shut-off position, preventing misconnection and unexpected air discharge.

• Wide Size Range & Compatibility
  Available in 4, 6, 8, 10, and 12 mm, perfectly matched with SHPI PU , Nylon (PA), LDPE, and Anti-Spark Tubing for the best sealing and durability.

Contact SHPI Today
Looking for Check Valves、One-Way Valves, or other high-safety pneumatic connectors?
SHPI delivers trusted solutions that ensure maximum safety, reliability, and efficiency across your production lines. 

For globally certified, high-sealing pneumatic fittings and tubing, contact SHPI – The Hose & Tubing  Expert today and discover the most reliable fluid control solutions for your system.