Holtec Gas Systems (Holtec) designs Nitrogen Generators for use in laboratory applications. We also represent manufacturers of other types of Gas Generators for use in laboratories, which include following equipment:

Nitrogen Generators:

We supply Pressure Swing Adsorption (PSA) type and Membrane type Nitrogen Generators for use in laboratories. The type used depends on required nitrogen flowrate and purity. We can supply almost any size system with a nitrogen flowrate starting at 250 cc/min. Nitrogen purity can be as high as 99.9995%. Principle of operation is described under Industrial Applications.

Hydrogen Generators:

The Hydrogen Generators use proprietary ion exchange membranes to ensure a high purity of generated gas (99.99999% hydrogen). The generators are designed for completely safe operation, featuring sophisticated control and dual redundancy safety systems. LED displays indicate system status, and audible alarms with automatic shutdown protect your analyses and equipment should the need arise. The generators require only water and electricity to operate; no caustic solution is used in these systems, making them safer and easier to maintain than competing brands. Water loading is automatic, allowing a virtually endless supply of gas, and all generators feature easy installation and low maintenance. We can supply systems with hydrogen flowrates between 200 and 1200 cc/min at 0 - 7 barg/0 - 100 psig without mechanical compression.

Zero Air Generators:

The Zero Air Generators remove hydrocarbons from compressed air, producing a hydrocarbon free, zero-grade air with <0.1 ppm total hydrocarbon content. The compressed air is passed through a cellulose inlet filter, which removes particles, oil, and water. Hydrocarbons are removed when the compressed air is passed through a heated chamber with a platinum catalyst where hydrocarbons are converted to water and carbon dioxide. After cooling, another cellulose filter is used as a final filter for removal of any residual particulate material. The product gas is free of impurities and can be used in place of high-pressure cylinders of zero-grade air. The Zero Air Generators can be supplied with or without compressors and produce from 1,000 to 30,000 cc/min of zero air.

Calibration Gas Generators:

The Calibration Gas Generator is a combination of a Zero Air Generator and a desiccant dryer to produce dry, zero-grade air with <0.1 ppm total hydrocarbon content and a dewpoint below -100 °F/ -70 °C. The Calibration Gas Generators can produce 15 or 22 l/min of dry zero air.

CO₂ Purifier/Purge Gas Generators:

The Calibration Gas Generator removes Carbon Dioxide and Water from your compressed air by using Molecular Sieve in a pressure swing adsorption process. CO₂ and H₂O are trapped and vented during the production cycle and purified gas is available on demand with <1 ppm CO₂ and a dewpoint below -100 °F/ -70 °C. The Molecular Sieve regenerates during production and does not require replacement. The Purge Gas Gas Generators can produce form 14 to 85 l/min of dry CO₂ free air.