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426 Series Regulator

Two-port, stainless steel barstock, single stage regulator for ultra-high purity gas applications
4264831-01-000 shown

The 426 Series regulators are intended for secondary pressure control of ultra-high purity and corrosive gases or as point-of-use pressure control in ultra-high purity gas distribution systems. With a maximum inlet pressure rating of 4500 PSIG (310 BAR), the 426 Series regulator ensures safe use with high-pressure cylinders.

  • Metal-to-metal diaphragm seal prevents gas contamination
  • CAPSULE® seat design features integral 360° filtration
  • Front and rear panel mountable permits easy installation
  • Spectometric helium leak check verifies leak integrity
  • Cleanroom assembly eliminates contamination at installation
  • Captured vent capable bonnet prohibits exposure in the unlikely event of diaphragm failure
  • Max inlet pressure (bare body): 4500 PSIG (310 BAR)
  • Body: 316L stainless steel barstock
  • Bonnet: Chrome-plated brass barstock
  • Seat: PCTFE
  • Filter: Patented 10-micron 316 stainless steel mesh
  • Temperature range: -40°F to 140°F (-40°C to 60°C)
  • Diaphragm: 316L stainless steel
  • Cv: 0.1
  • Helium leak integrity: 1 x 10⁻⁹ scc/sec
  • Internal seals: PTFE
  • Ports (bare body): 1/4 in FNPT
  • Conformances: Cleanliness meets or exceeds CGA G-4.1; PED 2014/68/EU; ANSI/ASME B40.1; CRN OH5216
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Document
Language
ID Number
Revision
426 Series Regulators Catalog Page
English
RS426S
AG
Regulators Installation and Operation
English, Spanish, French
ADI2062
M
CRN File OH5216
English
CRNOH5216
26

WARNING: This product can expose you to chemicals including Lead, Chromium, Nickel, and 1-3 Butadiene, which are known to the state of California to cause cancer, birth defects, or other reproductive harm. And, this product can expose you to chemicals including Bisphenol A (BPA) which is known to the State of California to cause female reproductive harm. For more information go to www. PSWarnings.ca.gov.

CAPSULE® is a registered trademark of Controls Corporation of America
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