AGP Gas panels, pressure regulators
Application
Gas analysis equipment needs regular calibration.
The most common method is using zero- and span-gas from certified gas cylinders. These gas cylinders contain high purity zero-gas (for example Nitrogen, or synthetic air) or well defined gas mixtures for span calibration.
To assure proper pressure reduction (most gas cylinders have a pressure of 150 or 200bar), to prevent any contamination and to manipulate safely, Ankersmid offers gas panel -and point-of-use pressure regulators.
Description
Wherever possible the calibration gases are installed outside the analyzer cabinet or shelter. Ankersmid offers primary pressure reducing panels, allowing easy installation and handling. The Gas panel ‘APAN1’ includes a stainless steel mounting plate, the first stage pressure regulator with in-and outlet manometers, gas outlet diaphragm valve, overpressure relief valve and a 1 meter pressure flexible with appropriate cylinder valve connection (DIN 477).
Inside the analyzer cabinet a finely adjustable point-of-use regulator assures precise gas dosing .The regulator allows immediate control of the calibration gas without the need of checking the outside cylinder settings. The Ankersmid Pressure Regulator (APR) uses a bellow type diaphragm, which allows sensitive outlet pressure control (0-1 bar) with a low torque multiple turn adjusting knob.
Using this combination of first stage (outside) and second stage (inside) regulators assures very stable gas pressure, even at low cylinder pressure. (One stage regulators show an increasing secondary pressure when the gas cylinder pressure drops, creating unacceptable calibration flows or even causing damage to the analyzer).
Documentation
AGP Gas Panels