Goulds pump performance curves

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Goulds pump performance curves

Today this process is made much easier through the use of electronic pump curve catalogs. One of the most well-known developers of electronic pump catalogs is Engineered Software and their pump selection software pump-flo. Another popular option for pump selection software is Intelliquip. A pump curve is a graphical representation of the performance characteristics of a pump. A pump curve provides a wealth of information regarding the performance capabilities of a pump.

Information is plotted on an x-y graph where the x-axis is measured in units of flow and the y-axis is measured in units of head, power, and NPSHr. The first piece of information provided by a pump curve is the flow that the pump will develop at any given operating head. The curve that provides this information is called the pump performance curve. Some pump curves only provide a single pump performance curve, but most will provide the maximum performance the pump is capable of achieving with a full-trim impeller, the minimum performance the pump is capable of achieving with a minimum-trim impeller, and the performance provided by the design-trim impeller.

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The design-trim impeller is the impeller trim the pump selection software has selected as the closest fit to the design condition provided. In this case, the design-trim is We know this by looking at the left-hand side of the curve where these three numbers appear. Considering the design trim curve we see that at zero flow, also known as shutoff or dead-head, the pump will develop about ft of head.

This is the head the pump would develop if it were operating against a closed valve. Keep in mind that the actual pressure measured between the pump and the closed valve might exceed this value because a pump ADDS head to the liquid being pumped.

In addition to head and flow, most pump performance curves will also provide efficiency information. The efficiency of a pump is the relationship between the input horsepower required to drive the pump at a given operating condition, and the water horsepower being created by the pump. Special attention should be paid to the location of BEP relative to the operating condition. Pumps run best at or near BEP.

It is best to select a pump that will operate most of the time in the POR since this will have implications for pump life and power consumption. You can read more about specific speed in our article about pump casings and impellers. There is another region of operation that is defined by the pump manufacturer rather than by a standards organizations such as HI: the Allowable Operating Region AOR.

In our example curve, the AOR is indicated by the portion of the curve shaded in light yellow. This is the region that the pump manufacturer has determined comprises all of the points that this pump can operate at continuously.Centrifugal Pump curves show 8 important factors that are critical in selecting the right pump for your application.

goulds pump performance curves

The Pump curve also displays the Pump model, the Pump size and number of stages for multi-stage pumps. The Pump curve shows the Flowrate range on the horizontal scale.

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The vertical scale on the main curve is always differential head. Since pressure is relative to the process fluid density, virtually all pump curves display this metric in a unit of length FT or Meters.

This makes the pump curve applicable to most liquid types. Exceptions are liquids with solids or high viscosity. Most centrifugal pumps are characterized by an elliptical head curve which is at a maximum at zero flow Shut Off and a minimum at Run Out.

Once the Rated Flow is plotted vertically, and the Rated Head plotted horizontally, where the two points meet, is Rated Duty Point, which is usually shown as a triangle. Pump curves are drawn showing the performance of the Rated Impeller Diameter. Some curves are drawn to show the performance of several Impeller Diameters from the Maximum Impeller to the Minimum Impeller.

Centrifugal pump impellers can be machined to larger or smaller diameters to alter the performance to best match the application.

The Rated Diameter Impeller is the actual size of the impeller installed in the pump. NPSHR is another important value that is plotted on most pump curves. NPSHr will generally increase exponentially as flow rate is increased. Now you have a general understanding of how to read a centrifugal pump performance curve. Stay tuned for our upcoming training blogs that explore more aspects of pump application, design and maintenance.

Below we identify these factors on this Curve. Share this:. We look forward to serving you!Thousands of installations in industrial process, sump drainage, corrosive liquids, pollution control, molten salts attest to the 's remarkable performance.

Simple mounting. Goulds Molten Sulfur Pumps - 1 in Reliability. WIth over 30 years of experience and hundreds of installations worldwide, special lineshaft bearings designed exclusively for Molten Sulfur applications meet any customer's needs. The result is a true world class pump line. The result is a true world class pump line; a product without compromise. It is designed to handle many difficult applications including fluids difficult to seal and applications requiring zero emissions.

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Goulds Chemical Process Pumps - The is designed specifically to handle moderate to severe corrosives with or without solids. As a sealless design, it's an effective alternative to pumps wih mechanical seal problems while meeting the strictest of EPA regulations. As a sealless design, it's an effective alternative to pumps with mechanical seal problems while meeting the strictest of EPA regulations.

The standard frame mounted configuration provides rugged dependable service for the most severe applications. Goulds High-Pressure Multi-Stage Pumps - Goulds Model is a radial split, segmented ring multistage pump with a proven state-of-the-art design for the most demanding high pressure services.

The modular design and parts interchangeability reduce maintenance and inventory costs. Compact size and flexible nozzle positions reduce space and piping costs. High reliability, optimum efficiency, and simplified maintenance combined with low initial cost and low operating costs make the a true world class pump.

Goulds Multi-Stage Pumps - Goulds Model is a multistage ring section pump designed for high-pressure services including: boiler feed, reverse osmosis, shower service, pressure boosting, plus much more.

Its modular design and multiple configurations make it ideal for your system. Goulds High Pressure, Multistage Ring Section Pumps - The Goulds Model is a radially split, segmented casing, multistage pump designed with modular interstage components. Its multiple suction nozzle and discharge nozzle orientations allow the to adapt to multiple piping installations and provide the piping designer with flexibility in plant layout.

Multiple hydraulics for each pump size optimize efficiency across a vast range of applications. All intermediate stage components are identical which reduces spare parts inventory. These pumps are particularly well suited for reverse osmosis and boiler feed applications. Shower services, booster service and other high pressure services are applications where the Model may be applied.

Goulds Double suction pumps cover large capacity and single stage applications. Goulds Double Suction Pumps cover extra large capacity and single stage applications. Goulds XD Medium Consistency Pumping Technology - Proven reliability through lower power requirements and a X-Ducer design which permits upgrades with minimal investment. When required, maintenance is easy to perform and readily adapts to variable speed operations.

Engineered features make it an extremely reliable, high performance pump well suited to a wide range of services in oil production, refining, pipeline, power generation, descaling and mine dewatering services.

Safety, reliability, and versatility are the key words for our double suction API between-bearing BB1 pump.

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Goulds has extended the hydraulic coverage on its Model process pumps. These new hydraulics augment existing hydraulics, extending the model hydraulic coverage. The Goulds employs state-of-the-art mechanical design features for sustained reliability and performance. In-line mounting close to supply source simplifies plant design and minimizes installation cost; save space. Model is a close-coupled version of the and is normally furnished with a single inside mechanical seal.

Goulds In-Line Process Pumps - Goulds Process pump line is specifically designed to provide superior performance for in-line services of the Chemical Process Industries. Goulds Severe Duty Slurry Pumps - Goulds Model is the result of many years of experience designing and building severe duty slurry pumps.

It's not only built to stand up to the toughest abrasive slurry services, but also is designed for extreme ease of maintenance and safety.Click here for pricing sheets on ecom. We are committed to ensuring that the individuals whose details we hold understand our privacy practices.

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Goulds 3196 Pump Performance Curves

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goulds pump performance curves

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Click here to learn more about how this cookie is managed by Twitter.If you are new to pumps and fluid processing, reading a pump curve can be a daunting, confusing task.

Then, just when you think you understand curves, you realize that different types of pumps centrifugal, positive displacement, air operated diaphragm In this post, we'll break down the anatomy of a centrifugal pump curve.

A centrifugal pump imparts energy on a liquid, and based on the system it is installed on, has flow and head characteristics. The amount of pressure the pump is required to overcome dictates where the performance point will be on the curve and how much flow is produced. As pressure increases, the flow decreases moving your performance point to the left of the curve. As pressure decreases, the performance point runs out to the right of the curve and flow increases.

goulds pump performance curves

Below are descriptions of basic parts of a performance curve with examples as they relate to the performance curve provided below. Knowing how to read a centrifugal pump curve is essential to the health of your system. Running too far out on the curve, or too far back, can cause damage to the pump, excessive energy consumption, and overall poor performance. Jordan, an Application Engineer at Crane Engineering, explains how to read a centrifugal pump curve in the video below.

See for yourself! Need further assistance with your pump curve? Ask us about it!

goulds pump performance curves

We are happy to provide technical assistance to businesses in Wisconsin and Upper Michigan. He has more than 7 years of experience in the general industry sector.

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He specializes in the proper selection of fluid processing equipment like pumps, filters, mechanical seals, and mixers. Join your peers! Subscribe to our blog for more tips, tools, and troubleshooting advice delivered right to your inbox. If checking the performance of an existing pump, confirm that you are matching the pump to the associated curve.Leading the way in making water safe NSF We are committed to ensuring that the individuals whose details we hold understand our privacy practices.

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We have also recently updated our Privacy Notice to ensure that it meets high transparency requirements for data privacy in compliance with the EU data protection law known as the General Data Protection Regulation GDPRwhich went into effect on May 25, Request Info Home Owner Support. Home Turbine Pumps. Turbine Pumps Selection Tool. Literature Curves Videos. Literature Curves Drawings Videos.

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For the best experience on our site, be sure to turn on Javascript in your browser. Goulds Water Pumps are among the most widely recognized and respected brands in the global pump industry. Xylem Inc. Anyone who knows much about pumps knows that Goulds pumps are among the best.

The Goulds brand is globally recognized and respected, available in over countries worldwide, and the quality speaks for itself. Goulds is known for quality, but their vast portfolio of products is also truly impressive.

How to Read a Pump Curve

Here are some of the types of Goulds pumps you can buy online and at your local dealer:. These quiet pumps are built to use in a wide variety of applications.

This kit comes with the pump, pressure tank, plus a variable speed controller and transducer. Goulds GB Series pumps are built for managing agricultural and residential washdown. The Goulds HB Series are great for high-pressure situations like condo high-rises or office buildings.

How to Read a Pump Curve: Simple Explanation

The LB Series are stainless-steel encased pumps for use in systems requiring a flow rate of up to 18 gallons per minute. Goulds offer several types of both horizontal and vertical centrifugal pumps with head capacities ranging from low to high. Designed with a variety of grey- and wastewater applications in mind, Goulds effluent pumps are submersible and made of high-quality materials.

They are available in manual and automatic models. Made specifically to handle sewage and wastewater, Goulds sewage pumps have single-phase motors with a thermal-overload protection feature to ensure your pump will last through the toughest jobs.

With electric, battery-powered, and water-powered options, Goulds sump pumps are built to prevent your basement from flooding by draining any standing water in your sump pit.

Goulds well pumps will exceed your expectations with convertible, submersible, shallow, and deep well options. These pumps also work well in small-scale irrigation and livestock water systems. Goulds also offers elevator, explosion-proof, high-temperature, trash, and grinder pumps, as well as sink pump systems. Goulds pumps have been on the market for several decades, so you can be certain that their quality has stood the test of time.

Their pumps go through rigorous testing and meet strict temperature, corrosion, abrasion, and pressure standards. And Goulds is the only manufacturer of process pumps in the market that offers digital monitoring as a standard feature!

We just so happen to offer them at the guaranteed lowest price, too! Also, we offer Goulds pump accessories, alarms and controls, and repair parts as well. These well-built and efficient sewage pumps were designed to move wastewater in a variety of application settings, including homes, farms, read more The Goulds 1DV series and 2DV series sewage pumps are versatile vortex sewage pumps that can be used in either simplex or duplex installations located in small lift stations, drainage systems or general read more These pumps can be used for effluent, sewage or general dewatering applications.

Each pump is solidly constructed with a mix of cast iron and stainless steel parts. Common application locations include sewage systems, flood and pollution control systems, in hospitals, trailer courts, hotels and motels. These pumps are submersible and capable of handling 2.

Both series are rugged, heavy duty pumps designed specifically to handle wastewater transport, effluent transport and dewatering applications read more These sturdy pumps are specifically designed for use in residential wastewater systems and can also be used for dewatering for groundwater and general water transfer purposes.

The construction of these pumps is rugged with the volute casing made of glass-filled thermoplastic for superior read more


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