Med Gas 41 Series

U.S. Valve’s 41 Series medical gas ball valves are engineered for reliable flow control in hospital and healthcare gas distribution systems, meeting NFPA 99–2018 requirements across a broad size range. Manufactured from high-quality forged brass, these valves are cleaned for oxygen service and sealed to ensure contamination-free installation. Our medical gas ball valves deliver trusted performance for oxygen, nitrogen, and air applications, along with enhanced standard features and customizable options to meet diverse system needs.

The 41 Series spans the full range of medical gas piping applications, from zone valves to main line shutoffs, delivering safe, precise, and contamination-free flow control for critical healthcare environments. Every valve features standard dual gauge ports and is assembled and tested in the USA for consistent quality.

  • Four types available: three-piece ball valves, dual gauge-port valves, vertical three-piece valves, and distribution/isolation valves for complete system flexibility
  • NFPA 99–2018 compliant for safe use in medical gas systems
  • Oxygen-cleaned to CGA G-4.1 and individually sealed to ensure contamination-free installation
  • Dual gauge ports standard on every valve—no extra cost or separate SKU
  • Broad size range (½" to 4") to support full system coverage from zone to main line
  • Forged brass construction with optional 316 stainless steel internals for durability
  • Three-piece body design allows full in-line serviceability without removing the valve
  • Integrated purge ports and Type K copper tube extensions enable safe, clean brazing
  • Vertical configuration available for compact zone box installation within a single stud cavity
  • Customizable configurations including labeling, ports, end connections, and specialty builds
SpecificationRange / Options
Size 1/2"-4"
Max Pressure 300-600 psi
Total Valve Length 21"-32"
Body Length 2.6"-9.8"
Tube Material Copper
Internal Material Brass, 316SS
Seal Material Teflon
Certifications CGA-G-4.1, MSS SP-110
Handle Length 4.3"-11.7"
Disc / Internal Material Brass, 316SS
Ball Material Brass, Stainless Steel
Body Material Brass
End Connections Copper Tube

Downloads

Type File Name Downloadable File
Brochure 41-51-Series_Medical-Gas-Valves-2312049-1223 PDF
CAD Model 41-Series_Medical-Gas-Ball-Valve_41125-TP STEP

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Close-up of a US Valve wafer check valve showing the elastomer hinge

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