Charts that display different impeller sizes will usually have efficiency displayed in these more complex plot lines. This is measured in percent and we usually see this parabolic curve where the pump increases in efficiency up to its maximum and then starts to decline again. You can easily convert between metric and imperial units for flow rate with our free calculator, CLICK HERE. Each type of pump has a different chart and the data plotted on them also varies with the model. Generally speaking NPSHr does not vary dramatically between variations in impeller trim which is why we do not see separate curves for the minimum and maximum impeller trims. Those curves are actually present, but they are overlaid by the design-trim NPSHr curve.

Your Pump Portal® interface will display calculations based on data from your control panel on the information you input about your pump(s). Plus, you can export or print all of your pump data, including the expanded advanced metrics. Pump Portal® enables organizations to realize dramatic improvements in their operational efficiency by reducing cost and service response times. By gathering data to the Cloud, Pump Portal® is a powerful platform that allows you to analyze and control your pump monitoring fleet from one centralized location. From their early beginnings in the 1930s, our Mono and Moyno brands have pioneered technological advancements in superior fluid-handling solutions for oil and gas and cross-industry applications. NOV acquired Mono in 2003, followed by Moyno in 2013, and our industry-leading pump ranges—together with our grinders, screens, and packaged systems— continue to deliver unsurpassed reliability to your processes.

This is the head the pump would develop if it were operating against a closed valve. A pump curve is a graphical representation of the performance characteristics of a pump. The graph depicting Total Dynamic Head and flow rate also features horizontal curving lines that illustrate speed (measured in rpm).

Minimum Continuous Stable Flow & The System Curve

The vertical pump uses a bearing support device to drop the vortex into the water tank. In this type, the impeller of the pump is covered in the volute casing. It receives the fluid being pumped by the impeller, maintaining the velocity of the fluid through the diffuser. When the liquid exits the impeller, it has high kinetic energy, and the volute controls this flow to discharge. In this, the pump uses a centrifugal force acting on the fluid surface to convert the mechanical energy. These pumps are used to raise the water or liquid from a lower level to a higher level.

To avoid cavitation, the NPSHr should always be less than the Net Positive Suction Head available (NPSHa) provided by the sump. NPSHa represents the total suction head available at the Pump inlet and is calculated as the difference between the total suction head and the vapor pressure head. When the NPSHa is greater than NPSHr, the Pump is less likely to experience cavitation.

These vertical pumps also differ from positive displacement pumps. Positive displacement pumps work on displacing a constant volume rather than a constant pressure of fluid. Centrifugal pumps increase the pressure of a fluid by using a spinning impeller to impart a centrifugal force on the fluid. Whereas positive displacement pumps draw in and discharge fluid using suction and compression.

We provided a Solar Knight® liquid level alarm panel with 50-watt solar array. The system was robust enough to withstand the Washington state climate and consistent cloud cover ensuring that our customer had a reliable remote connection to their panel 24/7. A customer located in Washington state needed a remote solar alarm with remote access for their port facility to communicate high liquid alarm conditions in a sensitive area of their site.

Product Summary: Radonaway® Retrofit Sump Cover View Port Kit

We will also stock for specific customer’s needs, saving them the expense and warehouse space to do so. Our multi-million dollar inventory can easily support your operations. Hayes Pump distributes the broadest line of pump products in the industry to suit virtually every fluid handling need. Hayes Pump is the Northeast’s largest industrial, commercial & municipal pump distributor with offices from Maine to New Jersey. We are the oldest and largest stocking distributor of pumps in the Northeast, representing 20 different suppliers of products used in transferring, metering, and filtering fluids.

Pump Portal® provides the same high quality level of monitoring as traditional See Water systems with the added benefit of remote access. Cellular connectivity enables deployments in remote locations without the concern of network interruptions. Pump Portal® offers real-time remote monitoring and control of See Water’s industry-leading control panels. Our web interface allows you to monitor and control your pump station from any device and get real-time alerts via text, email, or phone call. Our free download includes not only the necessary layout plan, but also elevation views to give you a comprehensive understanding of the structure.

Explore IDP’s diverse portfolio of process, multistage, nuclear, reciprocating, solids handling, sump and specialty pumps. King Pumps has provided quality water pump products and services to satisfy customers’ needs since 1974. As the name suggests, it is a moderate direction between radial (perpendicular to the axis) and axial (along the axis).

This design makes it ideal for abrasive, corrosive, or slurry-type fluids, as the absence of submerged seals reduces failure risks. Vertical cantilever pumps are used for fluids with suspended solids, such as sludges and slurries in the food processing, paper milling, sewage, and gas & oil industries. In a downgrade situation, when the target release of an Oracle Data Pump-based migration is lower than the source, set the VERSION parameter value to be the same version as the target. An exception is when the target release version is the same as the value of the COMPATIBLE initialization parameter on the source system.

In other words, if this pump were operating at shutoff with suction pressure of 20 feet the total head experienced at the pump discharge flange would be 150 ft (20 ft + 130 ft). The Net Positive Suction Head required is depicted on the third graph. Draw vertical line (shown in yellow below) at the known flow rate, which from our example we know to be 1,000 gpm. At the point where the vertical line intersects the plot information, draw a horizontal line (shown in green below) to the Y-axis. If the duty point falls on the right side of the shown efficiency curve, the Pump is generally considered out of range.

4.2  Pump suction piping shall be as short as possible and shall be arranged so that vapour pockets are avoided. A typical arrangement of pumps is illustrated in Fig.CPP4, CPP5, CPP6. Conversion between feet and meters of head is easy, we have a free calculator for that, CLICK HERE.

These pumps allow us to easily improve our match between pump performance and system requirements or allow for future expansion to the system. The efficiency is the ratio or comparison between the amount of energy going into the pump vs the amount of energy we get out of the pump. So, ideally we want to be as close as possible to the peak for optimal performance. Second, the blue curve beginning at 0 GPM and 0 Ft and extending through the design condition is the System Curve and represents the operation of the system in which the pump is being applied.