CO2 Check Valves

NDL is the first manufacturer of CRN-approved check valves for pressures up to 140 bar. Our CO2 check valves can hold five times their maximum working pressure, netting a tremendous safety margin for any valve used in CO2 systems.

Design and Features

  • Size and Connections
    A wide range of sizes and connection types makes our CO2 check valves compatible with main pipe types manufactured from copper iron alloys and stainless steel.
  • Stainless Steel Body
    Built with a durable stainless steel body, these valves are designed to work seamlessly with both stainless steel and copper-alloy connections, ensuring long-lasting performance and corrosion resistance even in demanding environments.
  • Tested for High Quality
    Each valve undergoes rigorous helium testing at the factory to guarantee leak-free operation. This quality assurance process ensures that every valve is capable of providing reliable and efficient service in a range of applications, from refrigeration systems to HVAC solutions.
  • Compact and Efficient Design
    Features a compact, streamlined design that minimizes flow resistance, ensuring optimal performance, energy efficiency, and easy installation.
  • Unparalleled Warranty
    Our two-year warranty proves confidence. Every CO2 check valve is tested and the serial number is stamped. Valves are cleanly packaged in poly bags and boxed to prevent contamination in transit to the job sites.

Certifications and Approvals

  • CE
  • RoHS
  • UL-certified
  • CRN Approved (Stainless Steel Check Valves)

Downloads

  • CO2 Check Valves
    • Product Guide
    • One-Pagers
    • Information Sheets
    • Technical Specifications Submittal Sheet
    • Installation Instructions
    • Certifications
  • Product Guide
  • One-Pagers
  • Information Sheets
  • Technical Specifications Submittal Sheet
  • Installation Instructions
  • Certifications
Title Type Size Updated Link

CO2 Check Valves (Stainless-steel Ends) Technical Data

PART # CONNECTION W KV CV CERTIFICATIONS/APPROVALS
MM M3/H GPM UL CRN CE
CO2-CVS10M 10 2 2.3 APPROVED APPROVED APPROVED
CO2-CVS12M 12 2 2.3 APPROVED APPROVED APPROVED
CO2-CVS16M 16 3.6 4.2 APPROVED APPROVED APPROVED
CO2-CVS22M 22 8.5 9.8 APPROVED APPROVED APPROVED
CO2-CVS28M 28 19 22.0 APPROVED APPROVED APPROVED
CO2-CVS35M 35 29 33.5 APPROVED APPROVED APPROVED
CO2-CVS42M 42 38 43.9 APPROVED APPROVED APPROVED

CO2 Check Valves (Copper-alloy Ends) Technical Data

PART # CONNECTIONS W KV CV CERTIFICATIONS/APPROVALS
IN M3/H GPM UL CRN CE
CO2-CVK014 0.25" (1/4") 2 2.3 APPROVED APPROVED APPROVED
CO2-CVK038 0.375" (3/8") 2 2.3 APPROVED APPROVED APPROVED
CO2-CVK012 0.5" (1/2") 2 2.3 APPROVED APPROVED APPROVED
CO2-CVK058 0.625" (5/8") 3.6 4.2 APPROVED APPROVED APPROVED
CO2-CVK034 0.75" (3/4") 3.6 4.2 APPROVED APPROVED APPROVED
CO2-CVK078 0.875" (7/8") 8.5 9.8 APPROVED APPROVED APPROVED
CO2-CVK118 1.125" (1-1/8") 19 22.0 APPROVED APPROVED APPROVED
CO2-CVK138 1.375" (1-3/8") 29 33.5 APPROVED APPROVED APPROVED
CO2-CVK158 1.625" (1-5/8") 38 43.9 APPROVED APPROVED APPROVED
CO2 Check Valves - Stainless Steel
CO2 Check Valves - C194