Selection of high-pressure particle-containing circulating pumps

When selecting a circulator pump suitable for high-pressure media containing particles, you need to consider the following key factors: 1. **Pump material**: Given that the system pressure reaches up to 25 MPa and the medium contains metal-based catalysts, the pump material must be capable of withstanding high pressures while exhibiting good chemical stability against these metal catalysts. It is recommended to choose materials with strong corrosion resistance, such as stainless steel or special alloy materials. 2. **Pump type**: For media containing solid particles, avoid using pump types prone to clogging, such as vane pumps. Consider using screw pumps, diaphragm pumps, or other types of pumps that are designed to handle the presence of solid particles, thereby reducing the risk of wear and blockage. 3. **Flow rate and head**: Select the pump specifications based on the system’s required flow rate and head. Under high-pressure conditions, the design of the pump must ensure stable operation at the required working pressure. 4. **Sealing design**: Since the medium contains metal catalysts, the pump’s sealing system must be capable of preventing leaks, especially under high-pressure conditions. Choose a sealing system suitable for high-pressure applications, such as mechanical seals, with good chemical resistance. 5. **Maintenance and Cleaning**: Consider the ease of maintaining the pump; a design that facilitates cleaning and maintenance, especially in environments with solid particles, can reduce long-term operating costs. Before making a selection, it is recommended to consult professional pump manufacturers or sales representatives, who can provide more specific advice and solutions to ensure that the pump’s performance meets the requirements of your system. .