Inline Check Valves

These check valves are the standard 1-way flow application to prevent moisture in a nitrogen (N2) line and keep the gases flowing, literally horizontally/vertically, with no backflow. The valves are installed directly in the pipe and are typically used to do any of the following: discharge backflow out of the system, pushes liquid or gaseous material 1-way with efficiency (straight piping product) or in a filtration scenario where damage may occur unless you control liquid/gas directions away from a bulk tank or manifold system. The Evergreen Sales Team would like to highlight key features that make this product line unique compared to other check valves: 

• Single Directional Flow, demarked with arrow on valve 
• 1 PSIG opening pressure
• Oxygen (O₂) cleaned for service (CGA G-4.1)

In-Line Check Valve Technical Sheets

• Flow Control Series
• NG Series Valves
• CG Series Valves 

Evergreen Top Selling In-Line Valves

• NG304
• CG500BL
• CMM250B-L