PLB8LB-024

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PLB8LB-024 is a type of electronic hydraulic control valve developed by Alfa Laval for applications in food, beverage, environmental and biotech industries. The valve offers variable flow control ranging from 0 to 100%, with varying control pressure capabilities. It is a common type of hydraulic control valve for regulating the flow of hydraulic fluid across a wide range of applications, from controlling pressure to controlling actuating cylinders, or even controlling the flow of oils.

The basic working principle of PLB8LB-024 is based on the principle of feedback, thus permitting users to achieve the same level of accuracy as found in digital hydraulic control valves. This is achieved by using a pilot-operated feedback mechanism that monitors the pressure difference across the valve opening. This is accomplished by using a combination of two components, the Pilot Valve and the Main Shut-off Valve. The main shut-off valve is opened and closed using a manually operated lever. The pilot valve is used to control the flow rate of the main shut-off valve.

The design of PLB8LB-024 ensures that it provides a variable flow rate control with accuracy and repeatability. Its unique control mechanisms prevent overpressure in the valve in case of abrupt changes in system pressures due to changes in viscosity, temperature, and viscosity change. The control accuracy is maximised by using a two-scale valve structure that ensures that the pilot valve responds accurately to the main shut-off valve’s feedback.

The various applications of PLB8LB-024 valve includes complex process and isolating valves, where the valve can be used to control the flow of the process liquids, and where the variable flow rate pattern needs to be controlled to achieve the desired product quality and specification. This is particularly useful in applications such as the vaccines, enzymes, and monoclonal antibody production.

The design of this valve enables it to be used in a wide variety of applications, such as controlling the pressure on water pumps, the flow rate on intake valves and bypass valves, control the temperature and pressure in closed loop systems, controlling the flow rate of a cooling fan, controlling the flow rate of a hydraulic system, and cooling tower applications.

The working principle of this system involves a closed-loop feedback mechanism that operates on the Pilot Valve. The pilot valve senses the differential pressure across the valve seat and adjusts the valve open position accordingly, thus controlling the flow rate of the main shut-off valve. The dimensions of the main shut-off valve are designed to ensure accuracy in regulating the flow rate of the pilot valve, and to provide a wide range of flow rates.

In conclusion, the PLB8LB-024 is a highly precise and reliable hydraulic control valve, offering users the capability to maintain the same level of accuracy as found in digital hydraulic control valves. Its accuracy and repeatability is maximised by using a two-scale valve structure, and it is therefore ideal for a wide variety of applications across different industries.

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