Unparalleled Oxygen Burn-Out Safety and Pressure Control Accuracy for Welding Gas Mixtures

Oxygen is considered a critical application for dome-pressure regulators because of the risk of burn-out from spontaneous ignition at high pressures. To address this problem, the 737LE-HD/S dome pressure regulator set from Witt Gas Controls LP (Roswell, GA) has been tested by the German Federal Institute for Materials Research and Testing (BAM; Berlin, Germany) and proven to be oxygen burn-out safe at pressures up to 2,900 psi. Safety experts recommend this type of external testing performed by the BAM because it verifies manufacturer data using objective test procedures. “Users of our dome-loaded pressure regulators are guaranteed the maximum possible level of safety as well as operability,” stated Andrew Smart, the head of sales for gas safety devices at Witt. Besides oxygen, this powerful pressure regulator can also be used for other technical gases.

The maximum inlet pressure for oxygen is 2,900 psi with an outlet pressure control range of 7.3 psi to 870 psi. A higher inlet pressure of up to 4,350 psi is also possible for other gases. The 737 LE-HD/S is ideal for pipework installation or for use as a manifold pressure regulator to DIN EN ISO 7291. The dome pressure regulator set comprises a pilot pressure regulator, a dome pressure regulator, manometer and fittings and complies with the requirements of hazardous substance leaflet M034-2 issued by the Employer’s Liability Insurance Association for the chemicals industry. This publication defines materials suitable for oxygen service. This dome pressure regulator offers unparalleled pressure control accuracy for gas mixing systems, burners and other applications. They generate a constant working pressure that compensates for pressure fluctuations in the gas supply pressure and varying flow rates to allow maximum control of the downstream process.

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Witt Gas Controls LP, 3080 Northfield Place, Suite 111, Roswell, GA 30076, 770-664-4447, Fax: 770-664-4448, www.wittgas.com.