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Dual-Stage Ultra-High-Purity Brass Regulators

By Restek
Dual-Stage Ultra-High-Purity Brass Regulators

These regulators are suitable when you use ultra-high-purity carrier gas for sensitive GC applications using MS, PID, HID, or ECD detection methods. They feature reduced internal dead-volume, relative to stainless steel bodies. The stainless steel regulator diaphragm minimizes non-metal parts, to help ensure ultra-high gas purity, and the metal valve diaphragm ensures leak-free shut-off.


  • Most stable outlet pressure control throughout the life of a high-pressure gas cylinder.
  • Secondary pressure regulation not needed.
  • Oxidation-resistant, chrome-plated.
  • Less internal volume than stainless steel regulators.
  • Outlet pressure: 0 to 100psig
  • Outlet gauge: 30" - 0 to 200psig
  • Inlet gauge: 0 to 4000psig
  • Outlet assembly: diaphragm valve, 1/4" tube fitting
Cat.No. Name Model EA    
226-21667 Dual-Stage Ultra-High-Purity Brass Regulator CGA 580 (N2, He, Ar) $750.00
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226-21668 Dual-Stage Ultra-High-Purity Brass Regulator CGA 350 (H2, P5) $750.00
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226-21669 Dual-Stage Ultra-High-Purity Brass Regulator CGA 590 (Air) $750.00
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