Analysis of whether KCB33.3 is suitable
Based on the provided information, the KCB33.3 gear pump seems to be a suitable option for the application of metering soybean oil, and here's the detailed comparison and reasoning:
1. Media Compatibility
- Soybean Oil Properties: Soybean oil has a density in the range of 0.919 - 0.925 kg/dm³. The KCB33.3 pump is specified to handle soybean oil as the media, indicating that it is designed to work with this type of fluid. The density value provided for the soybean oil in the initial description is consistent with the general properties of soybean oil, and the pump's design should account for this density range.
2. Flow Rate
- Required Flow Rate: The initial gear pump (BFC50 - AEKV6G2.2 - 300) and the application require a flow rate of 2 m³/h. The KCB33.3 gear pump also has a specified flow rate of 2 m³/h, which exactly matches the required flow rate for the application. This ensures that the pump can deliver the desired volume of soybean oil within a given time period.
3. Discharge Pressure
- Required Pressure: The system requires a discharge pressure of 10 bar. The KCB33.3 gear pump is capable of providing a discharge pressure of 10 bar, which means it can generate sufficient pressure to move the soybean oil through the system against any resistance, such as friction in the pipes or pressure drops across valves and fittings.
4. Power and Motor Specifications
- Power Requirement: Both the initial motor (2.2 kW for the BFC50 pump) and the KCB33.3 pump's standard motor have a power rating of 2.2 kW. This indicates that the KCB33.3 pump has enough power to operate effectively and handle the flow and pressure requirements of the soybean oil metering application.
- Power Supply: The KCB33.3 pump's power supply specification of AC380V 50HZ 3PH is a common three - phase power supply in many industrial settings. Although the initial motor was specified for 230/400V, the 380V supply of the KCB33.3 pump can be easily accommodated in a standard three - phase industrial power system, and the difference in voltage ratings within a reasonable range should not cause significant issues as long as the power (2.2 kW) is matched.
5. Pump Body and Seal Materials
- Pump Body Material: Both the initial pump (cast iron body) and the KCB33.3 pump have cast iron pump bodies. Cast iron is a durable material that can withstand the mechanical stresses and the corrosive effects (to a certain extent) of soybean oil over time, ensuring the long - term reliability of the pump.
- Seal Material: The initial pump uses a mechanical seal with SiC/Graphite/Viton materials, while the KCB33.3 pump uses a mechanical seal without specifying the exact materials but indicating it is suitable for the application. Mechanical seals are generally effective in preventing leakage of the pumped fluid. As long as the seal materials in the KCB33.3 pump are compatible with soybean oil (which is likely given its design for this media), it should provide reliable sealing performance.
6. Relief Valve
- Functionality: Both the initial pump and the KCB33.3 pump are equipped with relief valves. Relief valves are essential safety devices that protect the pump and the system from over - pressure situations. In case the pressure in the system exceeds the set limit, the relief valve will open to release excess pressure, preventing damage to the pump, pipes, and other components.
7. Connection Method
Initial Pump: The initial pump has a BSP thread connection with a 1 - inch size. The KCB33.3 pump has a 20/20 threaded connection. Although the thread types are different, appropriate adapters or fittings can be used to connect the KCB33.3 pump to the existing system pipes, ensuring a proper and leak - free connection.
Conclusion
Overall, the KCB33.3 gear pump appears to be a suitable replacement or alternative for the initial gear pump in the soybean oil metering application. It meets or matches the key requirements in terms of media compatibility, flow rate, discharge pressure, power, pump body and seal materials, and has a relief valve for safety. The difference in connection methods can be easily addressed with the use of appropriate fittings.
For inquiries regarding the selection and pricing of precision flow meters and metering pumps, please contact CIXIFM Winny:
Email: sales01@cxflowmeter.com
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