Vacuum Video 4.1

Steam is a prerequisite before designing an ejector system. Ask this decisive question, what is the pressure, in bar absolute and the temperature of the available steam? Ejectors rely on steam as their driving force, the energy that creates the vacuum. Knowing the available steam pressure determines whether ejectors are feasible and influences the system's stage design, size, and energy balance. The effect of motive steam in an ejector can be compared to the wind in a sail. When the wind is steady and at the right strength, the sailboat moves smoothly and efficiently. If there's too little wind, or in this case, steam pressure below design, the ejector cannot perform. The system stalls, unable to achieve the required vacuum. If the wind is too strong, you risk tearing the sails. Similarly, oversupplying steam leads to unnecessary consumption and higher operational costs. That's why you must confirm normal and minimum steam pressure, in bar absolute. Steam temperature. Minimum requirement is saturated steam. Superheated steam is acceptable. Pressure stability throughout the entire process cycle. Also make it clear to the customer that steam pressure specifications are part of the data they must provide, just like suction flow requirements. Stable, well-matched steam pressure keeps your system sailing smoothly and efficiently.