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Gas Regulators: Selection, Installation and Operation

From Sigma-Aldrich
 

 
Aldrich lecture bottle and specialty gas regulators are designed for use with dry (anhydrous) gases at a normal operating temperature of 70°F (21°C) and maximum inlet pressure of 3000psig. Certain gases will hydrolyze in the presence of moisture to form corrosive products that can impair regulator operation and cause failure. It is essential that system lines and regulators be purged with dry inert gas before and after use with corrosive gases
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Gas chromatographs separate organic chemical mixtures according to physical properties. Search by Specification | Learn more about Gas Chromatographs
Gas chromatography detectors (GC detectors) identify solutes as they exit the chromatographic column. A chromatogram is generated plotting the signal versus time. Search by Specification | Learn more about GC Detectors
Gas chromatography columns (GC columns) are of two types: packed and capillary. Solutes to be measured travel through the column at a rate primarily determined by their physical properties, and the temperature and composition of the column. Search by Specification | Learn more about GC Columns
Product Announcements
ControlAir Inc. - Type 3500 High Pressure Regulator
ControlAir Inc. announces the introduction of the Type 3500 High Pressure Regulator. This unique pressure regulator reduces inlet pressures from as high as 6000 psig (413 BAR) down to working... (read more)
ControlAir Inc. - Stainless Steel Pneumatic Regulators
ControlAir Inc. announces a major product expansion to their line of Stainless Steel Pneumatic Regulators and Filter Regulators. The expansion includes adding an automatic drain option, a low... (read more)
GFS Chemicals, Inc. - IONIC LIQUIDS
Despite their reputation as reactive components in propellant composites and some chemical systems, the use of perchloric acid and perchlorate salts in novel process chemistries as well as industrial... (read more)
GFS Chemicals, Inc. - Organic Halogen Reagent/Sodium Biphenyl
Quantitative isolation of organically bonded halide as a prerequisite for classical potentiometric determination requires extraction of the halide from an organic medium into a water-soluble ionic... (read more)
ControlAir Inc. - 350/360SS Series Stainless Steel Filter Regulators
ControlAir Inc. announces the introduction of the Type 350SS Stainless Steel Filter Regulator and the Type 360SS Stainless Steel Regulator. The Type 350/360SS series was designed to stand up to the... (read more)
 
Topics of Interest
Absolute Pressure - A quantity of pressure with respect to total vacuum. Equal to the sum of a pressure gauge reading and atmospheric pressure (14.69 psia at sea level). Absorption - The "soaking up"... (Read More)
Before Starting - Determine the Following: Instrument Types, Flow Rates & Delivery Pressures, Purity Requirements, Flexibility of Instrument Placement, Volume of Gases and Types, Centralized or... (Read More)
This glossary contains definitions of specialty gas regulators. (Read More)
Few members of the valve family are as unknown or misunderstood as the regulator. Widely used throughout industry as air sets for pressure control of the instrument air to actuators of diaphragm... (Read More)
The presence of moisture, oxygen, and other impurities in a process gas stream is highly undesirable. These impurities decrease yields because they form haze and oxides in films, cause dislocation... (Read More)
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