Table of contents
- ITT Goulds vs. Goulds Water Technology: Know Which Line You Need
- How Do You Select the Right ITT Goulds Pump for Your Application?
- Goulds Centrifugal vs. Vertical Turbine Pump: Which Configuration Fits?
- Choosing the Right Industrial Pump by Application
- Industries That Rely on Goulds Pumps
- Goulds Pump Selection by Application: A Quick Guide
- When Goulds Isn't the Best Fit
- 4 Selection Mistakes that Shorten Pump Life
- Control Specialties Can Help You Select the Right Goulds Pump
- Frequently Asked Questions (FAQs)
A pump that is poorly matched to its application may not fail immediately. Instead, it creates ongoing problems through damaged seals, cavitation, premature bearing wear, and unexplained energy costs. For plant engineers, maintenance managers, and buyers, knowing how to select a Goulds pump offers equipment for a wide range of industrial applications.
ITT Goulds pumps cover a wide range of industrial duties, from ANSI chemical process pumps and API 610 units to multistage boiler feed pumps and vertical turbines. Many models also support condition monitoring to help identify developing problems before they cause downtime.
The challenge is choosing the right pump family from the many available configurations. This guide covers the key selection data, major Goulds pump families, horizontal vs. vertical designs, and applications such as water treatment, boiler feed, and condensate service.
Quick Answer
To select the right Goulds pump, match the pump to your flow rate, total head, net positive suction head available (NPSHa), fluid properties, temperature, materials, installation, and duty cycle. Then choose the Goulds pump family that fits the application, such as ANSI process, multistage, self-priming, split-case, or vertical turbine pumps.
For water treatment, boiler feed, condensate, and chemical service, consider fluid compatibility and suction conditions in addition to hydraulic requirements. Always verify the operating point against the pump performance curve rather than selecting by horsepower alone.
ITT Goulds vs. Goulds Water Technology: Know Which Line You Need
The Goulds name spans two product lines that serve different pumping needs.
ITT Goulds Pumps: These pumps focus on engineered industrial and process applications, with models such as the 3196, 3700, 3410, 3393, and VIT.
Goulds Water Technology: Powered by Xylem brand, the technology focuses more on commercial, building-services, and water applications, with models such as the e-SV, e-HM, e-SH, and NPE.
The distinction matters when choosing the right industrial pump by application. A water treatment project, boiler room, or process system may require a pump from either line depending on flow, head, fluid, materials, installation, and operating conditions.
Identifying the correct product line before requesting a product or replacement parts can help you avoid delays and select the right equipment from the start.
How Do You Select the Right ITT Goulds Pump for Your Application?
Pump selection becomes much easier when you work from the application back to the equipment. Determine the required flow and head first, then consider fluid characteristics, temperature, materials, installation, and duty cycle. These details determine whether you need an ANSI process pump, API 610 pump, multistage unit, self-priming pump, or another Goulds configuration.
Step 1: Gather Six Operating Conditions Before You Open a Catalog
Every reliable answer to how to select a Goulds pump starts with the same basic information. Gather these six operating conditions before comparing models. Without them, even an experienced pump supplier can only make an educated guess.
| Condition | What to Record | Why it Matters |
|---|---|---|
| Flow Rate | Minimum GPM Normal GPM Maximum GPM |
Defines the required operating range |
| Total Dynamic Head | Static lift Friction losses Discharge pressure |
Determines required pump head and configuration |
| NPSH Available | Suction pressure Liquid temperature Vapor pressure |
Helps prevent cavitation |
| Fluid Properties | Temperature Chemistry pH Solids Viscosity |
Guides materials and pump construction |
| Duty and Control | Continuous or intermittent operation VFD or fixed speed |
Influences motor, seals, and efficiency. |
| Installation and Standards | Space Wet pit or well ANSI or API requirements |
Narrows the suitable pump configurations. |
If you're replacing an existing pump, start by reviewing its nameplate information. For more guidance, visit our reading Goulds pump model numbers post that explains how to decode the pump size, impeller diameter, and materials. This information can provide a useful starting point when evaluating a replacement.
Step 2: Match the Duty to the Right Goulds Pump Family
Once you have the operating conditions, narrow the options to the pump families that fit the application. The goal isn't to compare every Goulds model, but to identify the design that matches your flow, head, fluid, installation, and operating requirements.
Some models are available from stock, while larger engineered ITT models are selected and quoted for specific operating conditions.
ANSI Process Pumps (3196 i-FRAME and NPE)
The 3196 is an established option for chemical processing, water handling, and general industrial service. Its ANSI B73.1 dimensions allow it to replace many comparable pumps potentially reducing the need for piping or baseplate modifications, subject to dimensional verification. The back pull-out design also allows access to the rotating assembly without disturbing the piping.
For clean-water transfer and OEM skids, the stainless-steel NPE end-suction pump offers a simpler option. For other end-suction applications, see our centrifugal high-pressure pump range.
Choose This Family When:
You need a horizontal end-suction pump for general industrial or chemical service.
API 610 Process Pumps (3700 and 3600)
For refineries, petrochemical facilities, and power plants with API 610 requirements, pump construction and thermal management become critical.
The 3700 is an overhung API process pump, while the 3600 is an axially split multistage pump suited to high-pressure duties, including large boiler feed applications.
Choose This Family When:
The application requires API 610 compliance, engineered construction, and demanding process service.
Split-Case/Double-Suction Pumps (3410 and 3420)
High-flow applications such as municipal water supply, cooling-water systems, HVAC loops, and fire protection can benefit from a double-suction split-case design.
The opposed suction arrangement helps balance axial thrust, while the horizontally split casing allows inspection and maintenance without removing the suction and discharge piping.
Choose This Family When:
The application requires high flow, and the pump configuration meets the system's hydraulic and operating requirements.
Multistage High-Pressure Pumps (e-SV, 3355, 3393, and 3935)
Multistage pumps use multiple impellers to develop a higher head than a comparable single-stage design, making them suitable for applications such as RO feed, pressure boosting, and boiler feed.
- e-SV: Vertical multistage pump for commercial and light industrial applications.
- 3355: Handles temperatures up to 280°F and heads up to 1,640ft.
- 3393: Provides up to 3,300ft of head and handles temperatures up to 350°F.
- 3935: Designed for lower-flow applications and temperatures up to 400°F.
Compare the e-SV with other options through our Multistage Centrifugal Pumps range. Larger ITT models can be selected and quoted based on your operating conditions.
Choose This Family When:
The application requires high head, pressure boosting, RO feed, or boiler feed service.
Self-Priming Pumps (3796)
When the pump must operate above the liquid level and self-priming capability can simplify tank unloading, sump transfer, and dewatering applications. The Goulds 3796 combines self-priming operation with ANSI dimensions and shares many components with the 3196.
For solids-handling and other non-ANSI applications, compare available self-priming centrifugal pumps.
Choose This Family When:
The pump is installed above the liquid source, and suction lift is required.
Vertical Sump and Turbine Pumps (3171, VIT, VIC, and VIS)
The 3171 vertical sump pump keeps the motor and bearings above the liquid, making it suitable for pits, sumps, and process tanks. Vertical turbine pumps are designed for wells, reservoirs, and wet-pit installations. The can-type VIC adds a suction head where available NPSH is limited.
These selections depend heavily on setting depth, liquid level, pit geometry, and suction conditions.
Choose This Family When:
The installation requires vertical mounting, deep settings, or pumping from a sump, well, reservoir, or wet pit.
Sealless Magnetic-Drive Pumps (3296 EZMAG and 3298)
Magnetic-drive pumps eliminate the mechanical shaft seal, making them useful where leakage control is critical. The 3296 EZMAG is designed for applications involving ultra-pure, toxic, or hazardous liquids, while the lined 3298 provides corrosion resistance for aggressive chemical service.
Choose This Family When:
Preventing seal leakage and reducing emissions or recurring seal failures are key application requirements.
Goulds Centrifugal vs. Vertical Turbine Pump: Which Configuration Fits?
When engineers compare a goulds centrifugal vs. vertical turbine pump, the key difference is usually installation and suction arrangement, not simply the pump's operating principle.
Both are centrifugal designs, but a vertical turbine uses vertically arranged impellers in a bowl assembly to lift liquid from below the pump. The right configuration depends largely on where the liquid is located and how much suction head is available.
| Factor | Horizontal Centrifugal (3196, 3410, and e-SH) | Vertical Turbine (VIT, VIC, and VIS) |
|---|---|---|
| Suction Source | Tank, header, or flooded suction | Well, reservoir, wet pit, or sump |
| NPSH and Priming | Requires adequate NPSHa; may require priming above liquid level | Submerged impellers reduce priming concerns and suit limited NPSHa |
| Footprint | Requires more floor space | Smaller floor footprint; and motor remains above the liquid |
| Maintenance | Floor-level access; and back pull-out designs simplify service | Column and bowl assembly require lifting access for major maintenance |
Choose a horizontal centrifugal pump when you have flooded suction and want convenient floor-level maintenance. A vertical turbine is better suited to wells, wet pits, reservoirs, or other applications where the liquid source is below the pump.
For an intake or condensate application, share your suction conditions and operating requirements with our team so we can compare the appropriate configurations.
Choosing the Right Industrial Pump by Application
Industrial facilities rarely rely on a single pump type for every process. Raw water intake, filtration, pressure boosting, boiler feed, and condensate return all place different demands on the equipment. Choosing the right industrial pump by application means matching each duty to the pump family, hydraulic requirements, fluid properties, and installation conditions that best fit the job.
Goulds Pump for Water Treatment
A treatment plant typically involves several distinct pumping duties. The Goulds pump for water treatment should be selected based on the process stage, required flow and head, fluid characteristics, and installation conditions.
- Raw Water Intake: VIT vertical turbine pumps suit wells and reservoirs, while 3410/3420 split-case pumps handle high-volume transfer within the plant.
- Filtration and Backwash: e-SH or 3196 end-suction pumps provide reliable flow for filtration processes.
- Pressure Boosting and Distribution: e-SV and e-HM multistage pumps can provide the required pressure and work with VFDs for various demands.
- Reverse Osmosis Feed: Stainless-steel e-SV or 3355 multistage pumps provide the higher pressure required for membrane systems.
- Chemical Feed and Transfer: Alloy 3196 configurations can handle demanding fluids, while the sealless 3298 is an option for aggressive chemicals.
Material selection is just as important as hydraulic performance. Demineralized water and RO permeate can be corrosive to standard cast-iron components, so stainless-steel construction may be appropriate depending on the water chemistry.
Always confirm material compatibility with the actual fluid conditions before specifying a Goulds pump for water treatment.
Goulds Pump for Boiler Feed and Condensate
Boiler feed and condensate return may be part of the same steam system, but they present very different pump-selection challenges. Choosing a Goulds pump for boiler feed and condensate requires separate consideration of pressure, temperature, flow, and available NPSH.
Boiler Feed
Boiler feed pumps must overcome boiler pressure while handling elevated-temperature water. This generally makes boiler feed a high-head application well suited to multistage pump designs.
Start with the boiler's steam production rate and specified feedwater requirements and manufacturer-specified feedwater requirements. A common reference is approximately 34.5lb/hr of steam per boiler horsepower, equivalent to roughly 0.069 GPM of feedwater.
Pump capacity and discharge pressure should then be established using the boiler manufacturer's requirements and the actual system design rather than relying on a fixed rule of thumb.
Typical options include:
- Small Commercial Boilers: e-SV or e-HM
- Industrial Firetube and Watertube Boilers: 3355 or low-flow 3935
- Higher-Capacity Applications: 3316 two-stage split case, with capacities up to 3,000 GPM and temperatures up to 350°F
- Utility-Scale Service: 3600
See our Boiler Feedwater Pumps for additional options. If you're upgrading the complete feedwater system, our industrial steam deaerators help remove dissolved gases before the water reaches the pump and boiler.
Condensate Return
Condensate presents a different challenge because it can be close to its boiling point. In a vented receiver operating at approximately 212°F, vapor pressure is near atmospheric pressure, leaving relatively little pressure margin at the pump suction.
If the available static head is insufficient, NPSHa can fall below the pump's NPSHr and cause cavitation. To improve suction conditions:
- Maintain Adequate Receiver Elevation: Keep sufficient liquid height above the pump suction to provide the required NPSHa.
- Select for Low NPSH: Choose a pump with NPSHr appropriate for the available suction conditions.
- Consider Vertical Installation: A can-type VIC may be useful when the receiver can't be raised enough to provide adequate suction head.
A packaged condensate return system can integrate the receiver, pump, and controls for the application. Don't size boiler feed or condensate pumps using flow alone. Temperature, suction pressure, static head, and NPSH can determine whether the selected pump operates reliably.
The pump is also only one part of the steam system. Combining it with appropriate industrial boiler equipment and industrial steam controls helps the complete system operate as intended.
Industries That Rely on Goulds Pumps
Looking at the pump families commonly used across different industries can provide a practical reference when choosing the right industrial pump by application. The specific model still depends on flow, head, fluid properties, temperature, materials, and installation conditions.
- Water and Wastewater: VIT vertical turbines for intake applications, 3410/3420 split-case pumps for high-volume transfer, e-SV for pressure boosting, and 3196 or 3171 for process and sump duties.
- Power Generation: 3600 and 3316 for boiler feed, VIC for condensate applications, and split-case pumps for cooling-water circulation.
- Chemical Processing: 3196 for general process service, 3296 EZMAG for sealless applications, and 3298 for aggressive or corrosive fluids.
- Pulp and Paper: 3180/3185 stock pumps for pulp handling, 3196 for process duties, and multistage pumps where higher pressure is required.
- Oil, Gas, and Refining: 3700 and 3600 API 610 pumps for demanding process and hydrocarbon applications.
- Mining and Minerals: XHD and JC slurry pumps for abrasive service, with 3316 used for applicable dewatering duties.
- Commercial Buildings and HVAC: e-SH for circulation, e-SV and e-HM for pressure boosting, and suitable configurations for boiler feed applications.
- Food, Beverage, and Pharmaceutical Processing: Stainless-steel and sealless configurations for process duties, with dedicated sanitary centrifugal pumps where hygienic design is required.
Goulds Pump Selection by Application: A Quick Guide
Use this table as a starting point when matching a Goulds pump family to a specific duty. Final selection should be based on the complete operating conditions, including flow, head, fluid properties, temperature, NPSH, and installation requirements.
| Application | Industry | Recommended Goulds Family | Primary Selection Factor |
|---|---|---|---|
| Raw Water Intake | Municipal Water | VIT vertical turbine | Setting depth and NPSHa |
| High-flow Water Supply | Municipal and HVAC | 3410/3420 split case | Flow and efficiency |
| Pressure Boosting | Commercial and Industrial | e-SV and e-HM | Required head and VFD control |
| RO Feed | Water Treatment | Stainless e-SV and 3355 | Pressure and material compatibility |
| Chemical Transfer | Chemical Processing | 3196 and 3298 | Fluid compatibility |
| Boiler Feed: Commercial | HVAC and Institutional | e-SV and e-HM | Temperature and pressure |
| Boiler Feed: Industrial | Manufacturing and Power | 3355, 3935, 3316, and 3600 | Head, temperature, and flow |
| Condensate Return | Steam Plants | Low-NPSHr pumps and VIC | Available NPSH |
| Sump and Pit Service | Industrial and Municipal | 3171 | Liquid depth and solids |
| Tank Unloading | Chemical Processing | 3796 self-priming | Required suction lift |
When Goulds Isn't the Best Fit
Goulds covers a broad range of industrial applications, but it's not automatically the right choice for every duty. As a multi-line distributor of industrial pumps, we look at the application first and recommend the pump technology and manufacturer that best match the operating requirements.
- Packaged Booster Systems and Small Circulators: Our Grundfos pumps distributors page includes Grundfos booster and CR multistage pump options.
- Fire Protection and HVAC Split-Case Applications: Aurora pumps provide options for these high-flow duties.
- Hydronic Heating and Cooling Circulation: Armstrong hydronic circulating pumps are designed for HVAC circulation applications.
- Sanitary Food and Pharmaceutical Transfer: Ampco pumps offer pump designs suited to hygienic processing requirements.
- Abrasive, Viscous, or Shear-Sensitive Fluids: An air diaphragm pump can be a better fit, particularly where compressed air is available instead of electrical power.
4 Selection Mistakes that Shorten Pump Life
Even a well-built pump can experience premature wear when it's poorly matched to the system. These four selection mistakes can lead to higher maintenance costs, reduced efficiency, and avoidable downtime.
1. Oversizing "for Safety"
A pump that operates too far left of its best efficiency point (BEP) can experience internal recirculation, vibration, and premature seal and bearing wear. Select the pump for actual operating conditions, and consider a VFD when the system requires variable flow or future capacity adjustment.
2. Ignoring NPSH Margin
Hot water, condensate, and suction-lift applications can have limited NPSH available. NPSHa should provide an appropriate margin above NPSHr under the full range of operating conditions. Simply matching NPSHa to NPSHr leaves little room for changes in temperature, flow, or system conditions.
3. Choosing by Horsepower Alone
Motor horsepower doesn't determine whether a pump will deliver the required flow and head. Two pumps with the same motor rating can have very different performance characteristics. Always select the pump from its performance curve and verify the duty point.
4. Defaulting to Cast Iron
Cast iron may be suitable for many water applications, but fluid chemistry must be considered before specifying the casing material. RO permeate, demineralized water, and certain chemicals can create corrosion concerns. Selecting compatible materials at the outset can prevent premature casing damage and costly replacement.
Control Specialties Can Help You Select the Right Goulds Pump
The right pump must meet the system's hydraulic requirements and operating conditions. This guide covered the key factors for selecting a Goulds pump, including fluid properties, NPSH, temperature, materials, installation, and duty requirements. Matching these conditions to the appropriate pump family can help reduce premature wear, improve operating reliability, and avoid costly selection errors.
Control Specialties brings decades of experience helping industrial facilities select pumps and fluid-handling equipment for demanding applications. As a multi-line distributor, our team can evaluate Goulds pumps alongside other technologies based on your hydraulic and application requirements.
If you are unsure which Goulds pump best fits your application, get in touch with our experts to discuss your requirements. Our team can help evaluate the operating conditions, compare suitable options, and guide you toward a practical pump solution.
Frequently Asked Questions (FAQs)
How do I know what size Goulds pump I need?
Start with your flow rate in GPM and total dynamic head (TDH). Then check NPSH available, fluid temperature and chemistry, and duty cycle. Plot your system curve against the Goulds performance curve and pick a pump that operates near its best efficiency point. Don't oversize "for safety"; it causes vibration and early seal failure.
What is the difference between ITT Goulds Pumps and Goulds Water Technology?
ITT Goulds Pumps makes engineered industrial and process pumps such as the 3196, 3700, 3410, and VIT. Goulds Water Technology, a Xylem brand, makes commercial and building-services pumps like the e-SV, e-HM, and NPE. Many boiler room and water treatment projects use pumps from both lines.
What is the difference between a Goulds centrifugal and vertical turbine pump?
A vertical turbine is still a centrifugal pump; it uses multistage bowl assemblies on a vertical shaft. Choose a horizontal centrifugal for flooded suction and easy floor-level maintenance. Choose a vertical turbine when lifting from a well, pit, or reservoir, when NPSH available is low, or when floor space is tight.
Which Goulds pump is best for boiler feed water?
Boiler feed is a high-head, low-flow, and high-temperature duty, so multistage pumps fit best:
- the e-SV or e-HM for small commercial boilers;
- the 3355 or 3935 for industrial boilers;
- the 3316 for higher capacities;
- the 3600 at utility scale.
Size the pump from the boiler's evaporation rate (about 0.069 GPM per boiler horsepower), and confirm the requirements with the boiler manufacturer.
Why does my condensate pump keep cavitating?
Condensate arrives hot and close to its boiling point, so there's very little margin before it flashes to vapor at the pump suction. In a vented receiver, nearly all of your NPSH available comes from the height of liquid above the pump.
To fix it, raise the receiver, choose a pump with lower NPSH required, or use a can-type vertical pump such as the Goulds VIC. That's why choosing a Goulds pump for boiler feed and condensate service starts with suction conditions, not flow.
What is the best Goulds pump for water treatment?
There's no single best Goulds pump for water treatment; it depends on the stage:
- Intake: VIT vertical turbines
- High-Flow Supply: 3410/3420 split case pumps
- Pressure Boosting: e-SV or e-HM
- RO Feed: 3355 or stainless e-SV
- Chemical Transfer: 3196 or sealless 3298
Specify stainless steel wherever the pump handles RO permeate or demineralized water.
How do I find the right replacement for an old Goulds pump?
Start with the nameplate model number, which tells you the pump size, impeller diameter, and materials. Then check whether your operating conditions have changed since the original installation.
If they have, a direct replacement may no longer fit the duty. A distributor can match current models and genuine parts, and can recommend upgrades such as the i-ALERT2 condition monitor.
What is the difference between a single-stage and multistage Goulds pump?
A single-stage Goulds pump uses one impeller to move fluid, making it suitable for applications with moderate head requirements. A multistage Goulds pump uses multiple impellers to generate higher pressure for applications requiring greater head.
