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3 Steps for Smooth Sprayer Startup Next Year

Posted by Sprayer Depot on Fri, Oct 27, 2017

Reprinted from Hypro.Pentair.com

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The cooler temps have arrived for many of us and that means snow, ice and below-freezing weather.  In this post we're sharing some great information published by our friends at Hypro on the key steps to take now to ensure your sprayer is ready for your next spray season.

  • Adequately flush the pump and solution system of all chemical residue. Be sure to remove all strainer screens and clean any residue that has built up on the screens.
  • To prevent oxidation of components, fill solution system components with antifreeze and spray a small volume through the system (from tank to nozzle). This procedure will prevent elastomer components from ‘drying out’ and remove residue that continues to attack system components.
  • Improve the storage life of Centrifugal Pumps with cast iron components by using an antifreeze with a rust inhibitor.
  • Roller Pumps benefit by being stored with a light oil. Rotate the shaft to ensure that all internal surfaces are coated with oil. Plug ports after lubricating the pump.
  • Diaphragm and Piston/Plunger Pumps should be stored with RV antifreeze in them.
  • Leave Regulators, Unloaders and Valves in a loose or open state so that they do not stick upon startup.
     

     

    Read the complete list of Hypro's recommendations HERE

     

     

 

 

Topics: Winterizing Spray Equipment, Hypro, Diapgragm pumps, Hypro Roller Pump

Follow These Simple Steps to Winterize Your Hypro or Shurflo Pump

Posted by Sprayer Depot on Fri, Sep 29, 2017

Whether you're storing your pump for an extended period of time, or storing your spray equipment for the winter, our friends at Pentair recommend the following procedures for storing Hypro or Shurflo brand pumps. In this post, we're providing Pentair's guidelines, broken down by pump type, along with everything you need to know to ensure your pump is ready for the next year.

Centrifugal Pumps:

Flush the pump and entire system with a solution that will chemically neutralize the liquid that was used. By doing this, the residue from the chemicals sprayedHypro-Centrifugal-Pumps-SD.jpg will dissolve, leaving the inside of the pump clean for the next usage. For winterizing or extended downtime we recommend flushing the pump with automotive antifreeze (ethylene glycol) that contains a rust inhibitor (Prestone®, Zerex®,etc) mixed at 50/50 with water. This will both protect the pump from freezing and from rusting. Plug the inlet and outlet ports of the pump if you are going to store the pump inside or off the sprayer system.

Diaphragm Pumps:

All diaphragm pumps are susceptible to freezing, so extra care is needed to prevent the pump from freeze damage during the off season. Flushing the pump out with a chemical neutralizer prior to Shurflo-2088-Pump.jpgstorage will help clean the surfaces from any residue that has accumulated. Then flush the pump with a RV antifreeze (propylene glycol) mixed at 50/50 with water. This will protect the pump from freezing. Removing the pump from the sprayer and storing it in a heated area will also prevent costly damage to the pump. This should be done AFTER the pump has been neutralized and flushed out with antifreeze. Plug the inlet and outletports if storing inside.

Roller Pumps:

Roller pumps have a tight tolerance inside and chemical buildup will greatly affect the performance and wear factors of the internal components, so flushing with a neutralizer prior to storage is critical. After neutralizing, flush the pump out with an automotive antifreeze (ethylene glycol) that contains a rust inhibitor (Prestone®, Zerex®,etc) mixed at 50/50 with water. This will both protect the pump from freezing and from rusting. Removing the pump from the sprayer and storing it in a heated area will also prevent costly damage to the pump. This should be done AFTER the pump has been neutralized and flushed out with antifreeze. Add an ounce of rust inhibitor or light oil to the inlet of the pump and then turn the pump shaft to allow the inhibitor to coat all the internal surfaces. Plug both the inlet and outlet of the pump so that air will not be able to enter the pump. Reusing the original shipping plugs is the best way to ensure that the pump is air tight during storage.

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Topics: Winterizing Spray Equipment, Hypro, Diapgragm pumps, Hypro Roller Pump, centrifrugal pump, SHURflo pumps

A Simple Guide to Roller Pumps

Posted by Sprayer Depot on Fri, May 19, 2017

Roller pumps are ideal for agricultural, landscape, and industrial spraying applications. They can be used to transfer a variety fluids and are an economical choice for professionals in a variety of field applications. These pumps work especially well for pest control professionals and landscapers alike because they are designed to handle a multitude of pumping needs including insecticides, herbicides, liquid fertilizers and many other liquids. Although different models are made with materials for best compatibility with certain liquids.

How a Roller Pump Works

It's important to understand the basics of how this type of pump operates, in order to identify the best pump to suit your needs: the pump operates by accepting fluids through an inlet port where it is captured and transported by the rollers (tiny balls that function as a conveyor for the liquid) before being expelled. A roller pump has 4 to 8 rollers, depending on the model, that revolve inside the pump housing to force the spray solution out through the nozzle. It is important to consider all the construction features of the housing and the rollers when deciding which pump to purchase.

Roller Pump Options

For instance, a landscaper who is concerned about weed control Hypro-6500XL-actual.jpgmay want to consider the Hypro 6500XL series pump whose construction has been tested and proven to be compatible with the use of RoundUp. (Remember it is always important to flush your pump after every application to preserve the integrity of its internal components).

The economical rotary-action roller principle of the Hypro 6500C pump requires no check valves while providing positive displacement characteristics with less friction and lower starting torque than many other pumps on the market. This particular one has an internal roller direction of counter clockwise, as opposed the the 4001 and 4101 models which rotate clockwise.

With a slightly slower gpm rate, the cast-iron Delavan 6900C model pump
is an affordable option for most spraying needs. Cast iron pumps typically provide good performance with insecticides and pesticides. This roller pump has a 5/8-in. solid shaft and a max pressure of 300psi. 

delavan-pump.jpg

We Can Help

Contact our expert Customer Service Technicians for assistance in determining which roller pump best fits your needs. Call 800-228-0905 or leave your question in the comment box.

Topics: roller pumps, Hypro Roller Pump, Delavan, Delavan cast iron pump

Product Highlight: Hypro Roller Pumps

Posted by Sprayer Depot on Wed, Jan 20, 2016

Hypro roller pumps are designed for creating and boosting pressure in fluid circuits. The economical Hypro_Roller_Pumps.pngrotary-action roller principle requires no check valves, while providing positive displacement characteristics with less friction and lower starting torque than other pumps.

Ever wondered how these pumps work? Basically the pump receives fluid through the inlet port where it's captured and transported by the rollers. Afterwards the fluid is expelled through the outlet port. Easy, right?

Hypro roller pumps include housings and rollers, which come in a variety of materials that makes them resistant to a wide range of chemicals. The standard models of roller pumps rotate counterclockwise, when looking at the shaft end of the pump. However, reverse rotation roller pumps are also available if you need them.

Which Roller Pump, Rollers and Seals Should You Use?

Thanks to our friends at Hypro, who offer extensive educational resources on their website, we've put together a general guide to get you started on choosing the best roller pump for your application.

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Hypro roller pumps are a versatile, economical and quality option. Nevertheless, there are certain applications that are not recommended. The following chemicals should never be put through any Hypro pump:

• Kerosene/Kerosine (paraffin)

• Diesel fuel

• Ceramic slurries

• Sewage

• Potable water

• Abrasive fluids

Selecting the Best Pump for You

If you are still looking for more information on how to choose the best roller pump for the job, check out our previous post "Choose the Right Roller Pump"In three easy steps you will learn how to select the best roller pump for you. If you still need help deciding, or if you have questions that we didn't cover, leave your questions in the comment box below. If you'd like to talk to someone directly, contact our helpful Customer Service Technicians today!

Shop for Roller Pumps

Topics: Hypro, roller pumps, Hypro Roller Pump, product highlight

Maintaining and Servicing Your Roller Pump

Posted by Sprayer Depot on Mon, Nov 16, 2015

Your pump will last longer and perform at its best if you keep up with routine service. How often should you maintain your pump will depend on how often you use it and the type of liquid being pumped. However, there are general guidelines that the manufacturer recommends should be followed to properly maintain your pump.

Hypro Roller Pumps are some of our most popular pumps. They are used across different industries such as pest control, weed control, horticulture and other agricultural applications.

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For those of you unfamiliar with this type of pump, Hypro Roller Pumps come in three different materials: Cast Iron, Ni-Resist, and Silver Series XL. They are compatible with a variety of liquids and chemicals, require no check valves and are budget friendly.

Before performing any type of maintenance make sure you follow these safety measures:

  • Pump should be disconnected from its electrical, hydraulic, shaft driven, or gas engine power source.
  • Do not perform service or maintenance to the pump, or attached components, until the pump unit is below 109°F (43°C). 
  • When handling Hypro pumps, wear steel-toed shoes and protective gloves in order to protect your feet and hands. Eye protection should also be worn.
  • Any hazardous liquids should be disposed of in a manner which complies with local and national regulations. Never dump fluids onto the ground.
Cleaning your roller pump after every use is easy and will prevent downtime. Flush the pump with a neutralizing solution depending on the liquid just pumped. Follow this with a clean rinse using fresh water. Don't forget to wipe down the pump after each use to prevent deposits from forming and damaging it.

When you are ready to store your pump for a long period of time, make sure to drain it thoroughly. Open any drain plugs, remove the suction hose and blow it dry with air. An antifreeze/rust inhibitor should be injected into the pump before both ports are plugged and the pump is stored. Plug all ports to keep out air until pump is used again.

Preventive Maintenance Checklist

Roller_Pump_Checklist

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Do you currently use one of these pumps? Share with us your experience! 

 

Topics: Spray Equipment Maintenance, Sprayer Depot, winterize sprayer, Roller Pump, sprayer pumps, Hypro Pump, Hypro Roller Pump, Sprayer Pump, Sprayer Parts Guide

5 Signs of Roller Pump Wear

Posted by Sprayer Depot on Wed, Apr 01, 2015

7560C2014SchematicWe’ve talked a little bit about roller pump repair in the past and briefly explained some of the things to consider if you think it's time to consider repairing a broken or damaged roller pump. Today we’ll dive into the subject in more detail and share what to do to carefully inspect all parts of the roller pump for wear. From there you’ll be able to easily assess whether a repair kit is in order or, alternatively, if a full replacement pump is on your to-do list. Let’s get started.

When you’re looking for signs of wear, here are five areas to start. We’ll be using a Hypro roller pump as a point of reference throughout, but the main points apply to any make or model.

Housing Wear: The first place to look for wear is the housing. Make sure it’s in good condition, checking on both the inside diameter and the back face. Check 1/16” from the edge and look for a lip as an indicator of excessive wear.

Cover: Checking the cover might be the first place that you’ve looked for signs of wear. And well you’re not far off. When looking at the cover, keep an eye in the roller area in particular.

Rotor: When you’re looking at the rotor for signs of wear, you should look at its size. An undersized rotor, or one with worn roller slots, is a sign of excessive wear. To determine if it's undersized, you’ll want to measure the thickness of the rotor, which on a Hypro 7500 series roller pump should be 1.4995 at its smallest.

Rollers: Much like the rotor, undersized or swollen rotors in both length and diameter are not good. Measure the thickness and make sure it’s no smaller than 1.4995. Any smaller and it may be worn out and need to be replaced. Oh and make sure you replace rollers as a set, not just one at a time.

Shaft: Check the drive end of the shaft for wear (as well as in the seal area ) where signs of excessive wear include pitting or grooves. If it’s worn or pitted, the shaft needs to be replaced. Otherwise, it won"t seal properly.

After the above parts have been checked and the various points have been considered, decide if the pump is repairable. If it’s just a repair, grab yourself a repair kit and the following tools: socket, hammer, cradle (to support the housing), file and a measuring tool, to name a few. Then follow these steps to disassemble the pump: 

  1. Remove the adapter from the pump shaft.
  2. File off any burrs on the pump shaft.
  3. With a screwdriver, pry bearing covers off of the endplate and body.
  4. Remove the endplate bolts.
  5. Support the pump at its ports in a support fixture with the endplate down. Place it on a press bed. Center the press on the pump shaft and apply pressure to press the pump apart. Note that the shaft and rotor will remain with the endplate.
  6. Remove the rollers and endplate o-ring seal.
  7. To disassemble the rotor from the shaft, place the endplate in the support fixture with the rotor down. Center the 3/8" bolt on the pump shaft and apply pressure to press the shaft out of the bearing.
  8. With the endplate in the support fixture and the front of the endplate facing down, center the bearing support tool and slowly press the bearing out of the casting. Repeat the procedure to remove the bearing from the pump body.
  9. Punch the seals out of the endplate and body with screwdriver and hammer. Then discard the seals – seals can’t be removed without damaging them so you’ll need to replace them regardless.

Once the necessary repairs have been made and the pump is clean of debris. Reassemble the pump. Note that when you’re tightening the bolts tighten them in a crisscross pattern. Then check to see if the rotor is centered in the pump case by turning the pump shaft by hand. If the pump turns hard, place a wooden dowel against the end of the shaft, centering it on the shaft not the bearing. Tap lightly with a hammer. Try turning the shaft again and if it turns more easily you should be good. If this doesn’t do the trick, repeat the steps and tap the other end of the shaft. These minor adjustments will ultimately align the shaft, but if that doesn't work, try cleaning the pump - it's possible a piece of debris from a rag or something is caught inside.

Now that your roller pump is back in action, take care to ensure it lasts longer and performs better by taking care of it properly. After each use, make sure that you flush the pump with a neutralizing solution that's meant for the liquid you just pumped. Follow with a clean water rinse. This is especially important for corrosive chemicals. It is good practice to clean the pump after each use to prevent deposits from forming and damaging the pump.

Have any tips or tricks to add? Leave a note in the comments below. We'd love to hear from you.

Topics: Hypro Roller Pump Repair Kit, Sprayer Depot, Roller Pump, roller pumps, Hypro Roller Pump, Roller Pump Repair

Choose the Right Roller Pump

Posted by Sprayer Depot on Wed, Nov 12, 2014

Hypro roller pumpChoosing the right roller pump for your sprayer and application needs can be tricky. After all, the pump is the heart of the sprayer and roller pumps are the top all-around choice for agriculture and industrial spraying. This includes turf spraying of herbicides and pesticides, liquid fertilizers and many other liquids. These spray pumps have a low initial cost and are pretty versatile too. Still, there’s no one solution that meets everyone’s needs making the search for the best solution at times mystifying.

Before we get into the nitty gritty, it’s important to note the basics. A roller pump has 4 to 8 rollers depending on the model, that revolve inside the pump housing to force the spray solution out to the nozzle. These pumps operate at PTO speeds of 540 and 1000 rpm – a definite point to note for choosing the right pump. Roller pumps have a pressure range up to 300 psi and flow rates up to 74 gpm. These products are self-priming and easily adapt to PTO or gas engine drives. These pumps require no check valves while providing positive displacement characteristics. Got it? Good. Now let’s get into choosing the right roller pump.

Consider this real-life scenario that one of our customers shared with us:

“I bought a used 55 gallon tank sprayer with wand and boom for spraying weeds and fire control. It had a 4 roller pump on it that quit/froze a year and a half ago. I replaced with another 4 roller pump and this spring it froze again. The sprayer has a 3hp Briggs motor with a 5/8'' shaft. I would like to know if I can use a larger pump and/or what you would suggest.”

Know the answer? If not, take a look at the steps below for easy identification of the roller pump that will meet your needs. Or skip ahead and check out the solution for this particular scenario.

3 Steps for Pump Selection:

1.) Determine your highest spraying pressure (psi).

For spray guns, 40 psi is often typical at the nozzle, but to properly select a pump that can deliver the right spray pressure, you should calculate it yourself. Keep in mind that pressure losses are normal and should be factored into the equation. It’s recommended that you add 120 psi for system pressure losses.

Desired Pressure at Nozzle (psi)
+ Hose Pressure Loss (psi)
Total Pump Pressure Needed (psi)

2.) Calculate the total pump flow (gpm) using the formula below.

Now you’ll need to know the boom flow and agitation for that calculation. You can determine your boom flow (gpm) by multiplying the gpm per nozzle by the number of nozzles. The flow required for agitation is a little easier as that is determined by tank size. For a 500-gallon tank you’re looking at 25gpm, 750-gallon tank will be 37 gpm, 1,000-gallon tank at 50 gpm and 1,500-gallon tank at 75 gpm.  

Boom Flow (gpm)  
+ Agitation (gpm)
Total Pump Flow (gpm)

3.) Choose the pump based on the manufacturer’s catalog performance charts.

Sounds simple, but in addition to the numbers you just crunched you’ll also want to keep chemical compatibility in mind. Specific seal, roller and casting materials can be selected for compatibility with certain herbicides, pesticides, fungicides and fertilizers. The three housing material options – Cast Iron such as the Delavan line, Ni-Resist or Silver (for these purposes we’ll be referring to Hypro’s Silver Series XL roller pumps) – are particularly important for total pump life. Studies have shown, especially with weed control chemicals such as Roundup that the Silver Series XL line is more durable and affords a 10x longer pump life.

Now back to our example. This customer had a standard gas engine without gear reduction. In that case, the best solution was to replace the pump with another 4 roller pump (product 4101C) and keep an eye on maintenance for better long-term wear. Another solution would have been to use a different model, but that would have resulted in purchasing a gear reduced engine. In the long run, this customer was better off just replacing the pump with the same model.

Have anything to add or a dilemma our technical gurus can assist with? Share in the comments below or contact us today.

Topics: Hypro, herbicides, Sprayer Depot, Customer Spotlight, Roller Pump, roller pumps, Hypro Pump, Hypro Roller Pump, Ag Sprayers, insecticide, boom, spray gun, delavan cast iron

Is it time to replace your Roller Pump?

Posted by Marketing Manager on Fri, Jan 10, 2014

Is it time to replace your Roller Pump?

We receive a lot of calls from customers who want to repair their broken or damaged Roller Pump. Here are some things to consider:
  • Before buying and installing a repair kit for your Roller Pump, be sure that the housing of the pump is in good condition. 
  • If the housing of the pump is worn, new rollers won't be able to create enough pressure to move water through the pump. While you can purchase the pump housing as a replacement part, it is often more cost effective to buy a brand new pump.  
  • If you're not sure, take the pump apart, and send a picture to one of our Customer Service Technicians for help.
4001C Hypro Roller Pump
Visit our Facebook page and you could win Pressure Gauge - You can even pick the PSI.   Just "Like" our page to enter. One winner will be chosen at random and will be announced on our Facebook Page on Jan. 31st.

 

Download the Hypro Roller Pump Repair Kit: Assembly & Disassembly Instructions

Topics: Hypro, roller pumps, sprayer pumps, Hypro Roller Pump, Sprayer Pump, Roller Pump Repair

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