There are a varied number of ways by which fluids can be transmitted. High pressure process pumps work by a simple principle where the fluid is entrapped within a given volume or cylinder to build the pressure before it is released through a conduit pipe. Their preference stems from their ability to operate under high pressures without affecting the quantity of fluid transmitted. Three classifications based on the mechanism of transmission are the reciprocating, rotary and linear pumps.
Rotary drives are used in situations where the liquid that is being moved is thick or in scientific terms possesses a high level of viscosity. They cannot therefore be operated dry for extended durations. This would imply that abrasive fluids such as water will not be transmitted with the required efficiency. The only exception is air and vapor but this also has to be done under strict time constraints. Circulation of lubricant oils through turbines and engines is a common application of the rotary pumps.
Reciprocating drives are more dynamic in that they can transmit both abrasive and viscous fluids. They work through the motion of a piston in a cylinder of fixed capacity. Their dynamism however comes at a cost since they are actually slower compared to the other mechanisms of transmission although it is highly efficient. Common place usage is in circumstances that need to transmit low volumes of the fluid but under high pressures.
The most popular of the three has to definitely be the linear pump. Two factors that contribute to this is the ability to construct it with local materials such as a rope, PVC piping and a wheel. The other is ease of installation and usage. It is widely used as a pump for wells and boreholes.
In order for one to experience the full capabilities and performance of positive displacement drives, the installation has to be done properly and in accordance to the stipulated guidelines. Each manufacturer usually provides instructions for proper installation which if followed to the latter will definitely result in a successful installation.
A most basic approach would be to ensure that a solid foundation on which the pump would rest on is built. The best foundation is usually reinforced concrete. The weight will determine the strength of the foundation. The pump and the driver are bolted to the concrete slab via a secured steel base plate. This and a proper application of the user manual is all that is needed for installation.
Whilst in the process of selecting the type of pump you would like to use, one may consider whether they would want to transmit a viscous fluid under higher strains or not. Slight changes in viscosity can be accompanied with unprecedented changes in the rate of flow of the fluid and efficiency.
Changes in pressure are also a major concern and its effects on the rate of flow and efficiency cannot be understated. A pump that maintains its flow rate and efficiency even with significant changes in pressure would therefore be the ideal choice. Pressure pumps give the best value for money due to their ability to well address the viscosity and pressure concerns.
Rotary drives are used in situations where the liquid that is being moved is thick or in scientific terms possesses a high level of viscosity. They cannot therefore be operated dry for extended durations. This would imply that abrasive fluids such as water will not be transmitted with the required efficiency. The only exception is air and vapor but this also has to be done under strict time constraints. Circulation of lubricant oils through turbines and engines is a common application of the rotary pumps.
Reciprocating drives are more dynamic in that they can transmit both abrasive and viscous fluids. They work through the motion of a piston in a cylinder of fixed capacity. Their dynamism however comes at a cost since they are actually slower compared to the other mechanisms of transmission although it is highly efficient. Common place usage is in circumstances that need to transmit low volumes of the fluid but under high pressures.
The most popular of the three has to definitely be the linear pump. Two factors that contribute to this is the ability to construct it with local materials such as a rope, PVC piping and a wheel. The other is ease of installation and usage. It is widely used as a pump for wells and boreholes.
In order for one to experience the full capabilities and performance of positive displacement drives, the installation has to be done properly and in accordance to the stipulated guidelines. Each manufacturer usually provides instructions for proper installation which if followed to the latter will definitely result in a successful installation.
A most basic approach would be to ensure that a solid foundation on which the pump would rest on is built. The best foundation is usually reinforced concrete. The weight will determine the strength of the foundation. The pump and the driver are bolted to the concrete slab via a secured steel base plate. This and a proper application of the user manual is all that is needed for installation.
Whilst in the process of selecting the type of pump you would like to use, one may consider whether they would want to transmit a viscous fluid under higher strains or not. Slight changes in viscosity can be accompanied with unprecedented changes in the rate of flow of the fluid and efficiency.
Changes in pressure are also a major concern and its effects on the rate of flow and efficiency cannot be understated. A pump that maintains its flow rate and efficiency even with significant changes in pressure would therefore be the ideal choice. Pressure pumps give the best value for money due to their ability to well address the viscosity and pressure concerns.
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