To check whether a Fox thermocompressor or jet compressor can operate in your application, refer to the rule of thumb below and the example below. This 'feasibility test' reveals whether a thermocompressor can function in your situation.

Whether an ejector is truly practical in your application can only be determined by a more detailed evaluation by Fox, which will determine what motive steam flow is required to handle the stated load. However, this quick 'rule of thumb' can help during preliminary process evaluations to determine if the available steam pressure is adequate.