Selection Guidelines for Ceramic Valveless Plunger Pumps for ISO 46 Oil Testing

Selection Guidelines for Ceramic Valveless Plunger Pumps for ISO 46 Oil Testing

Pressure

Range: 0.5 - 35MPa (medium to high pressure). The pump should be selected based on the pressure requirements of the hydraulic or

 lubrication system in the actual application scenario. It should meet the pressure range while allowing for a certain margin to ensure

 stable operation under various conditions. For example, in a construction machinery hydraulic system, if the normal operating pressure 

is 20MPa, the selected pump's pressure limit should be higher than 20MPa to handle potential pressure fluctuations.

Flow Rate

Range: From trace (ml/min) to medium flow (L/min). The flow rate should be determined based on the specific application requirements.

 For trace lubrication of precision equipment, such as timed and metered lubrication of a high-speed spindle, a trace flow pump may 

be necessary; while for small-scale metered filling in an oil dispensing line, a medium flow pump may be needed to improve efficiency.

Metering Accuracy: ±0.5%. For applications requiring high flow accuracy, such as flow calibration in oil testing laboratories and precise

 lubrication of precision equipment, it is crucial to ensure the selected pump's metering accuracy meets the requirements to guarantee

 the accuracy of experimental results and the normal operation of the equipment.

Material

Ceramic Plunger: Pumps using ceramic plungers are preferred because ceramics are wear-resistant, corrosion-resistant, have low friction,

 and do not contaminate oil, making them well-suited for the long-term circulation and precise metering requirements of ISO 46 machine 

oils. In high-viscosity conveying scenarios such as chemical and environmental applications where high media purity is required, the 

advantages of ceramic materials are even more pronounced, preventing contamination of the oil by metal shavings and other impurities.

Accuracy

In addition to the flow metering accuracy mentioned above, the pump's accuracy in pressure control and delivery stability must also 

be considered. For example, in hydraulic system pressure testing, the pump must be able to precisely control the output pressure to 

ensure the accuracy of test results; during continuous delivery, the pump should maintain a stable flow output to avoid excessive 

flow fluctuations that could affect the production process or equipment operation.

Do you need me to help you choose a suitable ceramic valveless plunger pump for testing oil (pressure/flow/material/accuracy)?

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