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203 Series Regulator

Chrome-plated forged brass, single stage regulator for low delivery pressure applications
2031001-01-000 shown
Chrome-plated forged brass, single stage regulator for low delivery pressure applications

The 203 Series regulator provides final pressure control of non-corrosive, liquefied, or high purity inert gas applications (up to grade 4.5) requiring constant low-pressure control from low inlet pressure sources. With delivery pressures as low as 0.1 PSIG (7 mBAR), which can be adjusted in as low as 0.05 PSIG (4 mBAR) increments, the 203 Series regulator satisfies high purity applications with atmospheric delivery pressure requirements below 5 PSIG (350 mBAR).

  • Fine adjusting screw thread allows precise pressure adjustment
  • 316L stainless steel diaphragm prevents inboard diffusion
  • CAPSULE® seat design features integral 360° filtration
  • Spectometric helium leak check verifies leak integrity
  • Max inlet pressure (bare body): 200 PSIG (14 BAR)
  • Body: Chrome-plated forged brass
  • Bonnet: Chrome-plated, die-cast zinc
  • Gauges: 2 1/2 in (68 mm) diameter steel with brass connections
  • Seat: PTFE
  • Filter: 10-micron sintered bronze
  • Temperature range: -40°F to 140°F (-40°C to 60°C)
  • Diaphragm: 316L stainless steel
  • Cv: 0.02
  • Helium leak integrity: 1 x 10⁻⁸ 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
Download
203 Series Regulators Catalog Page
English
RS203S
AG
Download
Regulators Installation and Operation
English, Spanish, French
ADI2062
M
Download
CRN File OH5216
English
CRNOH5216
26
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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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