Skip to main content

page top
See all in Pressure Regulators

428 Series Regulator

Three-port, stainless steel barstock, single stage regulator with face seal connections
4284401-01-001 shown
Three-port, stainless steel barstock, single stage regulator with face seal connections

The 428 Series regulator provides secondary pressure control for the highest purity gases or other applications that require face seal connections or point-of-use pressure control in high purity gas distribution systems.

  • Metal-to-metal diaphragm seal prevents gas contamination
  • CAPSULE® seat design features integral 360° filtration
  • Butt-welded face seal connections provide the highest leak integrity available
  • Front and rear panel mountable permits easy installation
  • Spectrometric 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): 3000 PSIG (210 BAR)
  • Body: 316L stainless steel barstock
  • Bonnet: Chrome-plated brass barstock
  • Gauge: 2 in (50 mm) diameter stainless steel
  • Seat: PTFE
  • 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 face seal connection
  • Conformances: Cleanliness meets or exceeds CGA G-4.1; ANSI/ASME B40.1; PED 2014/68/EU; CRN OH5216
◂ scroll to see more ▸ 

See catalog page for ordering information.

◂ scroll to see more ▸ 
Document
Language
ID Number
Revision
Download
428 Series Regulators Catalog Page
English
RS428S
AH
Download
Regulators, Reguladores, Détendeurs Installation and Operation Instructions
English, Spanish, French
ADI2062
M
Download
CRN File OH5216
English
CRNOH5216
26
Related Products

Captured vent kit for 400 Series regulators
Captured Vent Kit
Captured vent kit for 400 series regulators

Helium leak certificate for regulators and manifolds
Helium Leak Certificate
Helium leak certificate for regulators and manifolds

Universal mounting bracket kit for CONCOA regulators
Regulator Mounting Bracket Kit
Universal mounting bracket kit for CONCOA regulators

prop 65 warningWARNING: 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
1