Anesthesia Machines

Through the oxygen proportional valve, oxygen gas is passed through the vaporizer and delivered only to the common gas outlet and then to the breathing circuit. In addition to providing a high flow rate of oxygen, it delivers unmetered oxygen to the breathing circuit. 

For this purpose, the Kelly Proportional Valve product line can greatly improve the accuracy of the oxygen delivered. With valves of varying sizes and flow capacities, the proportional valves can offer the required flow rates to the patient. For example, the smallest valve, the Miniature Proportional Valve can be utilized in pediatric anesthesia devices, due to its extremely accurate, low volume flow rates. Conversely, the High Flow Proportional Valve can deliver flow rates of over 300 SLPM, even at lower pressures (e.g. 1-2 PSIG).