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How to Size a Sprayer Pump: Flow, Pressure, and Pump Type Explained
(0) How to Size a Sprayer Pump: Flow, Pressure, and Pump Type Explained

Pump “size” can mean a lot of different things: Flow rate, port size, horse power required, or just how much space does the sucker take up! So when you are looking for a sprayer pump, you must consider several factors. But don’t worry, it is not complicated, and this article will provide the answers you need. 

 

Key Takeaways (TL;DR): Sizing a Sprayer Pump

Don’t just guess when picking a sprayer pump. Start by figuring out your flow rate (nozzles × GPM), then add 25–30% to handle things like pressure loss, agitation, and future upgrades. Make sure your pump can handle the pressure too—tree spraying needs way more PSI than a spot sprayer. Whether you’re running a boom sprayer, de-icer, or handgun rig, matching the pump to your setup means better performance, less wear, and fewer surprises in the field.

 

Identify Your Sprayer Type

First, you need to understand the needs of the specific type of sprayer you’re using—whether it's for tree spraying, agriculture, de-icing, or anything else—this is the first step. Sprayer type will inform you of the pump type you will need, as well as both the pressure and flow rate that is required. After all, not all sprayers will require the same fluid and pressure output. 

Typical Flow & PSI Requirements for Different Sprayer Pump Types:

Sprayer Type

Flow Range (GPM)

Pressure Range (PSI)

Boom Sprayer

1-100

15-120

Boomless Sprayers

3-100

20-60

Spot Sprayers

1-5

15-60

Tree Sprayers

10-50

150-700

De-Ice Sprayer

50-200

15-60

These amounts are general ranges for common sprayers and can vary. For a detailed breakdown, you can refer to our guide on the different types of sprayer pumps.

 

Calculate the Required Flow Rate

Once you know what type of pump you will need for your sprayer, you can then determine the size of the pump in regard to flow rate. To determine the required flow rate, you need to know some pieces of information. These pieces of information will vary slightly, depending on the type of sprayer, which again is why you start by determining what sprayer type you have.

 

Calculating Flow Rate for a Boom Sprayer

Flow requirements for your sprayer boom depend upon both the number of nozzles on the boom and the size of the nozzles. Once you identify the size of each nozzle or the flow rate per minute of each nozzle, you need to take that flow rate and multiply it by the total number of spray nozzles.  

number of nozzles on sprayer boom

Boom sprayer nozzles typically follow a color code. This will tell you the nozzle flow rate at various PSI. You will want to use the nozzle flow rate at the higher end of its operating pressure range. If you don’t yet have your nozzles sized or are uncertain what size nozzles you have, this guide will show you how to identify nozzle sizes. Then you can examine the nozzle chart for flow rates a various PSI.

If you have a “boomless” sprayer, the process is no different, although you may only have one or two nozzles. Likewise, a spot sprayer or spray rig with a single spray gun would only have one nozzle to account for.

Example Calculating Required Sprayer Boom Flow Rate:

Let's look at an example: if your sprayer boom has 18 nozzles that have a flow capacity of 0.4 GPM (gallons per minute), you will take 0.4 x 18. This gives us 7.2 gallons per minute. So we need a pump that is capable of delivering this flow rate; however, we are not done yet. We still need to examine some other factors.

 

Account for Pressure Increase

Multiplying the number of nozzles by their GPM capacity gets us started — but that alone often isn’t enough. Here's why we will need to consider more than just flow:

Extra Capacity for Increases in Travel Speed

If you speed up in the field but don’t change your nozzles, your sprayer must push more liquid through them to maintain the same application rate (gallons per acre). That means your system needs a higher flow rate — and your pump has to keep up. If the pump is undersized, pressure will drop, coverage may become uneven, and application rates may fall below label requirements.

Higher Application Rates = Higher Flow Demand

What if you need to apply a higher application rate in the future (GPA)? This will either require more pressure or a slower travel speed. However, this limits the sprayer. You can only increase pressure or decrease speed so much before needing to swap out your nozzles for larger ones.

Larger nozzles will directly increase how much fluid the pump must deliver. If you change nozzles to increase your rate, you won’t want to need to change out your pump as well. Account for this upfront, and you can be confident your sprayer will handle any future jobs.

 

ag boom sprayer

 

Account for System Losses and Bypass

Don’t forget that sprayer systems often use bypass regulators or agitation systems that recirculate fluid back to the tank. This “extra” flow also comes from the pump and needs to be accounted for.

A good rule of thumb: add 20–30% over your calculated nozzle GPM to accommodate system losses and agitation. Do note, if you use the same sprayer for two or three applications that require very different flow rates, figure 20-30% above the job that demands the highest flow rate. 

Now, this is a rule of thumb. The best route is to research the nozzles, the agitation jets, rinse nozzles, bypass valves, etc. Understanding the flow requirements for the boom as well as all the other accessories on the sprayer, will help to ensure you pick a large enough pump without unnecessarily oversizing it. 

 

Pump Type: Determine Pressure Required

The other half of sprayer pump performance to consider is pressure. The flow requirement tells us the output we need from the pump; however, the pressure required will tell you the type of pump you need. 

Boom sprayers and spot sprayers are going to be considered low-pressure applications. This would be about 15-120 PSI. Centrifugal pumps, roller pumps, and 12V diaphragm pumps will meet this requirement. 

Centrifugal pumps offer the highest volume. They are very common on larger agricultural boom sprayers as well as de-ice sprayers. 12V diaphragm pumps are used solely for low-volume applications such as small boom sprayers and spot sprayers. 

Sprayers where you need to reach a great distance with a spray gun will require more pressure. This is especially important for reaching tall trees. Engine-driven diaphragm pumps offer not only the flow but also the high pressure required to spray fluid 40-50 feet or even more. Typically reaching a pressure of 500 PSI or more.  

 

 

Our sprayer pump guide will break down each of these pump types in greater detail and offer you specific examples of each pump type for various applications.

 

Specific Sprayer Pump Sizing Examples

Let’s look at a few real-world examples to show how pump sizing works in practice:

Pull-Type Boom Sprayer Pump Sizing

Scenario:

  • Fifty-foot wide boom with 30 nozzles
  • Plan to spray 10 GPA rate at about 6 MPH
  • Nozzle size required: Yellow nozzle = 0.2 GPM @ 40 PSI.

Step 1: Calculate total nozzle output
30 nozzles × 0.2 GPM = 6 GPM

Step 2: Add margin for system demands
6 GPM × 1.3 (buffer for agitation, speed fluctuation, etc.) = ~7.8 GPM

Step 3: Consider an increase in rate or speed
15 GPA rate at the same speed would require 0.3 gallons per minute per nozzle. This can be achieved with the same nozzles at higher pressure or with a larger nozzle (Blue nozzle = 0.3 GPM at 40 PSI). 

  • 30 nozzles x 0.3 GPM = 9 GPM.  9GPM x 1.3 buffer = 11.7 GPM. 

Pump Recommendation: A Pump capable of 12 GPM at normal operating speed would work for these scenarios. Most agricultural sprayers use centrifugal pumps, and these are easily going to produce this amount, often much more. This would make the sprayer very versatile for higher volumes, such as applying fertilizer.

 

Examples: Ace FMC-HYD-204

 

Tree Spray Rig Pump Sizing 

Scenario:

  • High-pressure tree spraying with a hand gun
  • Spraying trees 40-45 ft tall
  • Required GPM: 10
  • Required PSI: 500

Step 1: Calculate total output
1 × 10 GPM = 10 GPM

Step 2: Add buffer for pressure loss and surge
10 GPM × 1.3 = ~13 GPM

Recommended Pump: 12–15 GPM diaphragm pump capable of 500+ PSI.

 

Examples: Udor Kappa 55, - AR503, - AR50

 

Spot Sprayer Pump Sizing

Scenario:

  • Small ATV sprayer
  • Handgun use only
  • Nozzle uses 0.5 GPM at 40 PSI

Step 1: Total output = 0.5 GPM
Step 2: Add a small buffer for pressure regulation
0.5 x 1.3 = ~.65 GPM

Recommended Pump Size: 1.8 GPM 12-volt diaphragm pump. There are 12V pumps that are lower in flow and cost; however, they are limited in pressure and may not provide the spray distance you need. So in this case, we over-size the pump slightly to ensure it performs. 

 

Example: Shurflo 8000-543-236

 

Conclusion

Getting the right size pump for your sprayer isn’t just about performance—it helps your equipment last longer and work more efficiently. When you take the time to calculate your flow rate, consider your pressure needs, and match it all to the right pump type, you’ll set yourself up for reliable, consistent spraying. A little planning up front goes a long way in making sure your sprayer does its job without headaches.

 

 

Shane Blomendahl, Author

Tech Ag & Industrial Sales

Shane Blomendahl is a tech sales veteran at Dultmeier Sales with over 10+ years of experience in liquid handling products covering several industries and applications.

Learn More About the Author

(0) Sprayer Pump Breakdown: Understanding the Mechanics & Benefits of Each Type

A sprayer's job is to distribute fluid over a designated area. No matter what type of sprayer at the center of the system is a pump. There are nearly endless different types of sprayers. They are built for several applications and require different types of pumps to deliver the flow characteristics necessary to complete those different spraying tasks.

At Dultmeier Sales, pumps are not just the center of a sprayer, they are at the center of our business. We sell, service, and support a wide variety of pumps for all types of sprayers. In addition, we prioritize understanding the different types, how they operate, and what pump works best on different sprayers.

In this guide, we will look at all the different types of pumps used on sprayers. We will examine how each pump operates and how they compare in terms of flow rate and pressure. In addition, we will offer real examples so you can see exactly how each pump is used. You'll be able to understand what type of sprayer pump will work for your application.

Different Types of Sprayer Pumps

While there are several variations of each type, the different pumps used on sprayers are centrifugal, roller, diaphragm, and piston pumps. Each pump is unique in its design and performance. Let's explore each type to understand how they operate and when to use them.

Centrifugal Pumps

Hypro Hydraulic Driven Centrifugal Sprayer Pump

  • Pump Family: Centrifugal
  • GPM Range: 0 to 500+
  • PSI Range: 0 to 150

Centrifugal pumps use an impeller to move water or other fluids by using centrifugal force. They are known for their ability to move high volumes of liquid at relatively low pressure. The most common centrifugal pump type used on a sprayer is a straight centrifugal pump. Self-priming pumps can be used, but a straight centrifugal pump is typically more efficient and capable of developing higher operating pressure.

A self-priming pump is capped at about 40-60 PSI depending on the specific pump. The straight centrifugal pumps designed for use on sprayers can produce well over 100 PSI. They are intended to accommodate the high travel speeds of self-propelled sprayers combined with the expanded operating ranges of modern sprayer nozzles.

Common Centrifugal Sprayer Pump Applications

  • Agricultural Spraying: Boom sprayers, fertilizer toolbars, boomless sprayers, fertilizer delivery on planters.
  • Turf and Landscape: Golf course sprayers, sports field sprayers, large acreage sprayers.
  • Industrial Uses: Salt brine trucks and trailers, water trucks for dust control.

Advantages of Centrifugal Sprayer Pumps

  • High Volume Output: Centrifugal pumps can handle large volumes of liquid, making them suitable for applications requiring substantial flow rates.
  • Durability: These pumps are robust and can handle abrasive and corrosive chemicals, making them versatile for various spraying tasks.
  • Simplicity: The design is straightforward, which makes maintenance and troubleshooting easier compared to more complex pump types.
  • Cost-Effective: Generally, centrifugal pumps are less expensive to manufacture and maintain, providing a cost-effective solution for many users.

Disadvantages of Centrifugal Sprayer Pumps

  • Low pressure: Centrifugal sprayer pumps have lower pressure capabilities compared to some other types of pumps like piston or diaphragm pumps. While centrifugal pumps can move high volumes of liquid, they do so at relatively low pressures.
  • Cannot Run Dry*: Running a centrifugal pump without fluid can cause significant damage to the pump. A centrifugal pump requires fluid in the pump case to lubricate the seal. *There are lubricated seals or "wet" seal centrifugal pumps that can run dry.

Centrifugal Pump Drive Types

Parts of a Centrifugal Sprayer Pump

Centrifugal Sprayer Pump Parts Breakdown

  • Impeller: The heart of the pump, which is responsible for imparting kinetic energy to the liquid. The design and size of the impeller significantly affect the pump's performance.
  • Casing: Encases the impeller and directs the flow of liquid. It also helps convert kinetic energy into pressure energy.
  • Seal: Prevents leaks and maintains the pump's integrity by keeping the liquid within the system.
  • Suction and Discharge Ports: Inlet and outlet points through which the liquid enters and exits the pump.

You can find a more detailed examination of centrifugal pump components and how they affect the performance of a pump in this guide to centrifugal pumps for fertilizer.

View All Centrifugal Pump Options

 

Roller Pumps

Hypro 7560C Roller Pump

  • Pump Family: Positive Displacement
  • GPM Range: 2 to 60
  • PSI Range: Up to 300
  • Applications: Small and medium-sized boom sprayers, turf sprayers

Roller pumps use rollers inside a cylindrical housing to move liquid. As the rollers rotate, they create a vacuum that draws liquid in and then pushes it out. Roller pumps are very common on 3-point sprayers crop and turf boom sprayers, because they are self-priming, develop consistent pressure, and are less expensive compared to other types of sprayer pumps.

A roller pump is part of the positive displacement pump family. This means that a consistent volume of fluid is delivered with each cycle (in this case shaft revolution), regardless of the discharge head in the system. Simply put, you can spray at 60 psi if you want because the pump overcomes the restriction in the system. With a centrifugal pump, the system restriction will affect your operating pressure much more.

The larger roller pumps can produce about 50-60 GPM, limiting the size of the sprayer they can be used on. A roller pump can be repaired but the standard cast iron housings do have a limited life span. Friction eventually wears the pump housing to a point where the pump will no longer work efficiently.

To combat the wear and corrosion of agrochemicals and fertilizers, there are Ni-resist and Silvercast pump housings that last much longer than the standard cast iron roller pumps.

Advantages

  • Pressure Output: Capable of producing consistent and generally higher pressure than a centrifugal pump.
  • Self-Priming: Can draw liquid from a lower level, making them easy to start and use.
  • Compact Design: Small and easy to integrate into different spraying systems.
  • Can Be Reversed: Many roller pump models can be reversed so you can drive it either clockwise or counterclockwise. Consult the manual of your specific pump for details.
  • Cost: Less expensive compared to other sprayer pump types. Especially when PTO driven since it does not require an engine or hydraulic motor.

Disadvantages

  • Wear and Tear: Rollers wear out, especially when used with abrasive chemicals.
  • Limited Flow Rate: Not suitable for applications requiring high flow rates.
  • Maintenance: Regular maintenance is required to ensure optimal performance.
  • Limited Lifespan: Wear and corrosion can increase the Internal clearance between the pump housing and rollers to the point that the pump no longer works effectively.

Drive Types

  • PTO
  • Belt Driven
  • Electric Motor
  • Gas-Engine

Parts of a Roller Pump

Roller Sprayer Pump Parts Breakdown

  • Rollers: The moving parts inside the pump that create suction and discharge action.
  • Rotor: Holds the rollers in place and drives their motion.
  • Housing: Encases the rollers and rotor, providing a sealed environment for the liquid to move through.
  • Shaft: Driven by PTO or motor and spins the rotor.
  • Seals: Prevents leaks and maintains the integrity of the pump system.

Check out the Different Roller Pump Options

 

12-Volt Diaphragm Pumps

2088-343-135 12 Volt Diaphragm Pump

  • Pump Type: Positive Displacement
  • GPM Range: 1 to 5
  • PSI Range: Up to 100+
  • Applications: ATV/UTV sprayers, spot sprayers, small boom sprayers, low-volume chemical transfer

12-volt diaphragm pumps are very common and versatile. They are used on small sprayers because they are easy to power with a battery and relatively low in cost. These pumps work well with a wide variety of agrochemicals, cleaners, and other liquids, especially when diluted. They are self-priming, and they can run dry.

One standout benefit of the 12-volt sprayer pump is the demand switch. This feature shuts the motor off when you close a valve on the discharge side of the pump. When the valve is closed, the pressure increases, tripping the demand switch and shutting off the motor.

The most common application of this is when you are spot-spraying with a trigger wand or spray gun. When you pull the trigger, your pump turns on, when you release the trigger, the pump stops. This conserves your battery life and prolongs the life of the pump as it only runs when needed.

A 12-volt diaphragm pump can be used on smaller boom sprayers. However, they may only be able to work on booms with about 5-10 tips depending on the size of the nozzles that you use.

Advantages

  • Portability: Lightweight and easy to transport, ideal for portable sprayer setups.
  • Self-Priming: Can draw liquid from a lower level, making them easy to start and use.
  • Low Power Consumption: Efficient operation with low electrical power requirements.
  • Chemical Resistance: Can handle a variety of chemicals without damage.
  • Demand Switch: The pump only runs "on demand", when you pull the trigger or open the valve to spray.
  • Low-Cost: Very affordable compared to other pump types.

Disadvantages

  • Limited Flow Rate: Maximum flow rates are about 5 GPM.
  • Pressure Limitations: Maximum pressure is lower compared to other positive displacement pumps.
  • Pump Life: The pump motor and other components do not have the same lifespan as other pump types. Parts can be replaced but the cost and time to repair may be nearly as much as a new pump.

Drive Types

  • 12-volt Electric Motor
  • This pump type is also available with 24-volt and 115-volt motors

Parts of a 12V Diaphragm Sprayer Pump

12 Volt Diaphragm Sprayer Pump Parts Breakdown

  • Diaphragm/Wobble Plate: This assembly is driven by the motor; it has an eccentric bearing that causes it to "wobble" and this motion creates the suction to pull liquid into the pump and force it out.
  • Check Valves: let fluid flow into the pump and stop it from going back out of the inlet port.
  • Pump Housing: Contains the wobble plate and check valve assembly, and serves as the pump chamber where the liquid is pulled into the pump and forced out.
  • Motor: Powers the movement of the wobble plate.

View 12-Volt Pump Options.

 

Large Diaphragm Pumps

503GR34GCI Large Diaphragm Pumps

  • Pump Type: Positive Displacement
  • GPM Range: 3-100+
  • PSI Range: Up to 725
  • Applications: Tree spraying, turf sprayers, fertilizer applicators

Large diaphragm pumps use multiple diaphragms and chambers to move large volumes of liquid at high pressures. These pumps are the preferred tool for long-range or vertical spraying such as tree spraying. The combination of high-flow rate and high pressures, when combined with the right sprayer gun and nozzle, results in a stream of liquid that can be propelled 50 feet or more in the air.

Video of Diaphragm Pump on Skid Sprayer:

Diaphragm pumps can also be used on boom sprayers or fertilizer boom sprayers. While they don't offer the same flow rates as a centrifugal pump of similar size, they can be a good option for sprayers or applicators when the fluid being sprayed is too thick or viscous for a centrifugal pump.

Advantages

  • High-Pressure Output: Capable of producing very high pressures
  • Durability: The flexibility of the diaphragm offers good resistance to a wide range of abrasive and viscous fluids.
  • Chemical Resistance: Can handle a variety of chemicals without damage.

Disadvantages

  • Cost: More expensive to purchase and maintain compared to smaller pumps.
  • Complexity: More complex design requires more safeguards and proper installation. Troubleshooting can be more complicated than with other pump types.
  • Maintenance: The diaphragms and pump oil must be changed periodically, typically every 500 hours or 3 months of use.

Drive Types

  • Engine Driven
  • Hydraulic Driven

Parts of a Diaphragm Sprayer Pump

  • Diaphragms: Multiple flexible membranes that move to create suction and discharge action.
  • Check Valves: Control the flow of liquid into and out of the pump chambers.
  • Pistons: Push and pull the diaphragms to create the necessary suction and discharge, driven by the crankshaft.
  • Crankshaft: Driven by the engine or motor, rotation of the crankshaft drives the pistons
  • Gear Box: Allows diaphragm pumps to be directly driven by a gas engine at about 3600 rpm.
  • Regulator/Control: Serves as the relief valve and provides pressure adjustment. Also directs flow from the pump outlet to different sprayer features such as spray gun, agitation, etc.

View All Diaphragm Pump Options

 

Piston Pumps

NGP6055 Piston Pumps

  • Pump Type: Positive Displacement
  • GPM Range: Approx 1 to 68
  • PSI Range: Up to 120
  • Applications: Fertilizer application on toolbars or planters.

A piston pump is more common for fertilizer application than it is for pesticide/herbicide application. They do not offer the flow rates needed for large boom sprayers, and they are not as forgiving to solids or abrasion as diaphragm pumps. However, they excel at delivering fluid accurately and consistently.

This pump works by using pistons to create a reciprocating motion that draws liquid into the pump chamber on the suction stroke and then pushes it out on the discharge stroke. This mechanism allows the pump to generate consistent flow.

There are piston pumps that are designed for high pressures (1000 psi +), but the piston pumps used for agricultural applications are geared to precision. They are often ground-driven, which makes them the simplest option for automatic rate control. A ground-driven piston pump does not require flow meters or regulating valves for automatic rate control. As you speed up or slow down the pump delivers the precise amount needed to maintain your application rate.

These pumps are also available with hydraulic motors and PWM valves. This allows you to control the speed of the pump with a rate controller and flow meter.

Advantages

  • Accuracy: The pump pushes a consistent amount of fluid with each stroke, especially important when applying fertilizers.
  • Durability: Robust construction for long-lasting performance in harsh environments.
  • Priming: Excellent ability to prime offers flexibility when mounting the pump on a sprayer, toolbar, or planter.
  • Easy to Service: The NGP piston pumps are designed to be field repaired. The check valves can be quickly removed and cleaned or replaced as needed.
  • Self-Adjusting: A ground-driven piston pump automatically adjusts to your speed, delivering the precise amount needed without flow meters or regulating valves.

Disadvantages

  • Cost: More expensive than other pump types that deliver similar flow rates
  • Complexity: More complex pumps with many components.
  • No solids: Requires filter prior to the inlet to protect check valves and pistons from damage.

Drive Types

Parts of a Piston Sprayer Pump

The piston pumps used for fertilizer application are more complex pumps than some of the other fertilizer pumps. They feature several components but these are the main ones:

  • Plunger: Reciprocating action of piston rod and plunger draws in liquid and pushes it out.
  • Check Valves: Control the flow of liquid into and out of the cylinders.
  • Crankcase: Houses connecting rod and crankshaft

See all the Piston Pump Drive Options Here

 

Key Takeaways

The type of pump used on a sprayer can have a drastic effect on the performance. Understanding the different types of sprayer pumps and their attributes will ensure you have the best tool for your application. The Dultmeier Sales team has decades of experience and can provide you with insights and guidance in selecting and troubleshooting your sprayer pump.

 

Shane Blomendahl, Author

Tech Ag & Industrial Sales

Shane Blomendahl is a tech sales veteran at Dultmeier Sales with over 10+ years of experience in liquid handling products covering several industries and applications.

Learn More About the Author

MP Pumps: Ag, Petroleum, & Industrial Fluid Transfer Solutions

MP Pumps has been manufacturing quality centrifugal pumps for more than 80 years. Over this time, they have developed and improved upon their designs to offer reliable and affordable fluid-handling options for a variety of industries and applications.

There is almost certainly an MP pump that will work for you, but sorting through the various types can be tough. As a master MP Pumps distributor, Dultmeier Sales can help you pinpoint the right one. Here's a detailed look at the different MP Pumps available, their common uses, and the advantages and disadvantages of each type.

 

MP Pumps Company Overview

MP Pumps has been around since 1942, proudly crafting high-quality centrifugal pumps from their home base in Fraser, Michigan. They've got a pump for just about everything from making sure your fertilizer and ag chemical system runs without a hitch to keeping industrial processes flowing smoothly, to moving petroleum products efficiently.

 

MP Pumps Company Info:

  • Founding: 1942
  • Location: Fraser, Michigan.
  • Phone Number: (800) 563-8006
  • Parent Company: Ingersoll Rand
  • Website: MP Pumps

 

Industries Covered:

  • Agriculture
  • Fuel
  • Transportation
  • Irrigation
  • Marine
  • Industrial

 

MP Pump Types

MP Pumps has an extensive product line. They manufacture self-priming pumps, straight centrifugal pumps, chemical pumps, circulator pumps, petroleum pumps, and more.

Dultmeier Sales can supply just about any MP pump but we focus primarily on the ag, industrial, and petroleum pumps. These industries rely on the MP Flomax, Chemflo, and Petrolmaxx lines. One of the most common is the Flomax self-priming pump series, so let's start there.

 

MP Flomax

Description: These are self-priming centrifugal pumps. Available in materials like cast iron and stainless steel. Versatile, and capable of handling a wide variety of fluids. Many parts are interchangeable with other Flomax models.

 

Common Uses: The MP Flomax pump can be implemented in countless situations. Dultmeier Sales has been selling the Flomax series pump for use in agriculture for several years. Specifically, nurse trailer and sprayer tender truck transfer pumps, as well as fertilizer and agrochemical bulk plant pumps. They are excellent at handling water, agrochemicals, and fertilizer but they can be used with other liquids as well.

 

Key Features:

  • Capable of flows up to 750 GPM.
  • Handles pressures up to 230 head feet.
  • Stainless steel shaft sleeve for durability and corrosion resistance.
  • Self-Priming
  • Viton seals standard
  • Removable bolt-on FNPT flanges means your piping remains in place when servicing the pump
  • Wear plate can be replaced to extend the life of the pump
  • Suction check-valve holds liquid, protecting the pump seal when it re-primes

Find Flomax Pumps Ready to Ship Today!

 

Flomax Pump Options

When it comes to connecting the pump to an engine or motor, MP offers the Flomax pump in two basic configurations. The pedestal version and the PumpPak version.

 

Pedestal: A pedestal pump is designed to be long-coupled to motors, or other drives. It features a bearing pedestal and solid shaft.

 

MP Pumps 21339 Flomax 8 Pedestal Pump

 

PumpPAK: This version of the Flomax pump is designed to be mounted directly to an engine or motor. There are versions to mount on gas-enines, hydraulic motors, and C-face electric motors.

 

MP Pumps 21327 Flomax 8 pedestal pump

 

Flomax Pump Sizes

Flow rate is always key for any pump type. There are Flomax pumps made to deliver up to 750 GPM:

  • Flomax 5 - 1-1/2 inch ports, Up to 145 GPM
  • Flomax 8 - 2 inch ports, Up to 170 GPM
  • Flomax 10 - 2 inch ports, Up to 225 GPM
  • Flomax 15 - 3 inch ports, Up to 320 GPM
  • Flomax 30 - 3 inch ports, Up to 500 GPM
  • Flomax 40 - 4 inch ports, Up to 750 GPM

Find Flomax Pumps Ready to Ship Today!

 

Materials

The Flomax line is available in several materials. Pumps constructed with cast iron housings and impellers, stainless shafts, and Viton seals are most common. All stainless pumps are available for more corrosive applications.

 

Pump Drives

An MP Flomax pump can be driven a number of ways. Whether you require an electric motor, engine, or hydraulic motor. The pedestal pump version can be assembled on a baseplate with motor and long-coupled together. The PumpPak version can be mated directly or close-coupled to C-face electric motors or gas engines.

Various shaft sleeve sizes and bolt patterns are available so you can easily connect an MP pump to almost any C-face motor or gas engine.

If you would like a more detailed explanation of close-coupled and long-coupled pump units, be sure to read this guide to the best fertilizer pump options.

 

Chemflo Series

Description: Some liquids are more harsh on pumps than others. The MP Chemflo stainless steel pump family is built to withstand more severe applications and corrosive liquids. There are several different variations within this family to be compatible with different types of liquids.

MP CHEMFLO Centrifugal Pump

Common Uses: Agricultural chemical mixing, fertilizer transfer, water treatment, de-icing liquids, and other industrial fluid transfer.

Key Features:

  • Corrosion-resistant 316 stainless wetted components
  • Suitable for a wide range of chemicals
  • Available in a variety of sizes

 

MP Chemflo Pump Options

The Chemflo pump family is made up of more than 30 unique models. These different models are designed to be used in many different applications. They vary in flowrate, drive type, port size (flanged & NPT), etc.

 

Sizes

Chemflo pumps come in very low to high-flow options. Their CFX pumps have 1/2 to 1-inch ports with flow rates ranging from 10-40 GPM. The larger versions are available with 1-1/2 up to 3-inch ports and these pumps will provide maximum flow rates of 150-395 GPM.

 

Materials

One of the primary features of this pump series is the cast 316 stainless steel components used to construct the pump. While stainless is not an answer for 100% of liquids, it does offer resistance to the effects of a much wider range of liquids when compared to cast iron.

While the housing, impeller, and other components are made from stainless steel, the mechanical seal is available with a variety of options including Viton, EPDM, and Teflon. You can always refer to our chemical compatibility charts to evaluate which materials and elastomers will be compatible with the liquid you need to pump.

 

Drive Options

Like other MP pumps, the Chemflo series comes in a variety of setups included long-coupled pump and motor units, close-coupled pump and motor units, and hydraulic-driven units.

For more details and an explanation of close-coupled and long-coupled pump units, be sure to read this guide to the best fertilizer pump options.

 

PetrolMaxx Series

Description: Pumping fuels in high-volume applications requires the right type of pump for efficiency, compatibility, and safety. MP's PetrolMaxx series is a self-priming pump similar in design to the Flomax family but constructed with materials compatible with fuels. There are variations to ensure compatibility with diesel, biodiesel, gasoline, E85, and more.

MP25POP PetrolMaxx Pump Unit

Common Uses: High-volume fuel transfer. Loading and unloading bulk fuel trailers and trucks. Filling large equipment for construction and agriculture.

Key Features:

  • Self-priming
  • Available to mate directly to engines/motors or with a bearing pedestal for long coupling
  • Flow rates of 150-700 GPM
  • Options for Ethanol, Biodiesel, Gasoline, Diesel, and More

 

MP PetrolMaxx Options

For safety and compatibility, it's crucial to use the right pump for each type of fuel. That's why MP has created a variety of pump models designed specifically for different fuels. Each model is built with materials that match the unique properties of the fuel it's meant to handle, ensuring safe and reliable operation.

One of the most popular versions is made to handle diesel. Dultmeier sells hundreds of two-inch PetrolMaxx pumps driven by gas-engines for high-volume diesel fuel transfer. These pump units help fill equipment much faster than the common 12-volt fuel pumps. You can get flow rates well over 100 GPM with the right size hose and fuel filters.

 

MP Petroleum Pump Sizes

  • 1-1/2 Inch
  • 2 x 2 Inch
  • 3 x 3 Inch
  • 4 x 3 Inch
  • 4 x 4 Inch

See More MP PetrolMaxx Pump Options Here

 

Materials

As mentioned earlier, the PetrolMaxx family of pumps consists of several pumps fitted for specific fuels. The materials used include: steel, aluminum, cast iron, ductile iron, nitrile, 316 SS, Viton, Ni-resist, and more.

 

Drive Options

You can fit a PetrolMaxx pump to a gas-engine, electric motor, or hydraulic motor. It is important to note that some fuel types may require the use of an explosion-proof motor or gas-engine.

Dultmeier sales builds pump units on baseplates for easy installation. The units are available close coupled to electric motors or engines, and long coupled to electric motors. There is also a complete fuel unit with a hose reel, pump, fuel filters, fuel nozzle, and base plate.

 

MP Pump PetrolMaxx Gas Engine Driven Pump Unit

View All Pump & Engine Units

MP3010C Transfer Pump Unit

View Pump & Electric Motor Units

 

Final Thoughts

MP Pumps has been a reliable supplier for years offering a wide range of pump solutions. Dultmeier sales has relied on MP as a competitively priced and durable pump for the rigors of the primary industries we have served. Including the fertilizer and ag chemical world as well as for de-icing, industrial, and fuel transfer.

 

Shane Blomendahl, Author

Tech Ag & Industrial Sales

Shane Blomendahl is a tech sales veteran at Dultmeier Sales with over 10+ years of experience in liquid handling products covering several industries and applications.

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