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GateKeeper® Hydrogen Gas Purifiers

GateKeeper® Hydrogen Gas Purifiers

Cost-effective, environmentally friendly gas purification


Consistently delivers ultrapure gas
Designed for use with H2 and H2/inert gas mixtures
Guards against bulk gas purifier breakthrough, impurity spikes from liquid storage tanks, cylinder changeouts and unexpected contaminants in the process
Does not release hydrocarbons that may contaminate the process
Uses ambient temperature purification technology – no power or heat required
Low pressure drop across purifiers


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Materials of construction: 316L stainless steel, electropolished 10 Ra
Model 45M: Cr-Mo steel, SA 372, Grade F, Class 70
Media: Nickel metallic/metal oxide
Gases purified: H2 and H2/inert gas mixtures
Outlet purity: <1 ppb O2, CO2, H2O
Model 45M: <100 ppb for all contaminants
Outlet particle filtration: 0.003 μm
Model 45M: 20 μm
Maximum differential pressure: 1379 kPa (200 PSID)
Minimum operating pressure: 101 kPa (14.7 PSIA)
Maximum flow rates: See data sheet.
Leak rating: 1 × 10-9 atm cc/sec.
Model 45M: 1 x 10-3 atm-cc/sec
Maximum inlet challenge of contaminant to maintain product efficiency: 10 ppm (part-per million)
Lifetime: One year at nominal flow rate with 1 ppm inlet challenge of O2
65°C (149°F)