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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.

Roller_Pump_Application_Guide_Chart.png

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

Product Highlight: Large Capacity Kings Sprayers

Posted by Sprayer Depot on Tue, Dec 01, 2015

In this edition of Product Highlight we are featuring three popular models from our Kings Sprayers® large capacity sprayers. The Kings Sprayers® product line offers a variety of sizes, styles, pumps and engines to fit your needs. The aluminum frames are heavy-duty and built to ensure proper support to different sized tanks. They are also lightweight, chemical resistant and will never rust or need painting. Depending on the tank's size and application we also offer a few models, like the KT510P12042E, with a steel frame. Available poly tank sizes range from 15 gallons all the way to 1,000 gallons. To facilitate the operator's handling, the walls of the tanks are translucent for easy level viewing and are equipped with gallon indicators.

Whether you need a DOT approved trailer sprayer, or a skid sprayer you can mount on your truck, we have them in-stock and can also customize any model to your needed specifications.

Kings Sprayers® 510 Gallon Highway Ready Trailer Sprayer 

This DOT approved trailer sprayer is great for spraying trees up to 80' in the air. It features a high flow pump which is great for drenching and transferring liquids quickly. 

KT510-Revised3.jpg

 Features:

  • 510 Gallon Free Standing Horizontal Leg tank
  • 20 HP GX630 Electric Start Honda Engine
  • Udor KAPPA-120/GR Diaphragm Pump (35 gpm, 700 psi)
  • Electric Hose Reel with 300' of 3/4" ID Spray Hose
  • DOT-Approved Tandem Axle Steel Frame with VIN

Kings Sprayers® 335 Gallon Skid Sprayer 

This sprayer features a 335 gallon poly tank and can be used in truck beds, utility vehicles, boats KS335P70-Actual.jpgand trailers. Skid sprayers are ideal for tree-spraying, pest control and lawn applications.

Features:

  • 5.5 HP GX160 Series Honda Engine
  • Hypro D30GRGI Diaphragm Pump (9.5 gpm, 580 psi) 
  • Electric Hose Reel with 300' of 1/2" ID Hose
  • 6061 Aircraft Grade Aluminum Frame

Kings Sprayers® 200 Gallon 3-Point Hitch Sprayer 

3-point hitch sprayers are the perfect option to spray large areas like golf courses, athletic fields and pastures. This model features a 200 gallon poly tank and can easily spray up to 30' through the spray gun.3PT200B12-Actual.jpg

Features:

  • Hypro 7560XL "Silver Series" Roller Pump
  • 12' Spray Boom with Manual Selector Valve
  • 50' of High-Pressure Spray Hose 
  • A High-Output Eight-Roller PTO-Driven Pump Delivers 12 gpm at 300 psi
  • 6061 Aircraft Grade Aluminum Frame
  • Adjustable Pressure Regulator and Hydraulic Jet Agitation

Shop All Kings Sprayers

We can customize any sprayer to meet your needs so just give us a call and we'll be happy to help. Plus, many of our most popular models are available for same-day shipping!

Topics: Trailer Sprayer, Hypro, Spray Guns, DOT, Kings Sprayers, Skid Sprayer, sprayer, roller pumps, sprayer tanks, Pump, poly tanks, 6061 Aluminum Frame, honda engine, dot approved, 3-point-hitch, pumps, product highlight, large capacity

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

3 Reasons Why You Should Buy a Pump from Sprayer Depot

Posted by Sprayer Depot on Wed, Aug 20, 2014

You’re on the market for a new spray pump. You have a pretty clear idea of what you need. After all, nine times out of ten it’s a replacement pump that’s on its last leg and in need of replacing. Not an easy pill to swallow when you have to buy one of the most vital parts for your sprayer. But where do you start?

Does this scenario sound familiar? Since we're more focused on your needs than your wallet, here we’ll share three foolproof tips to get you the best product for your needs at the best price. 

Tip #1: Inventory
Whether you’re in the market for a diaphragm pump, roller pump, centrifugal pump, piston pump, transfer or plunger pump, find a retailer that covers the spectrum with a variety of brands on hand for sale. Look for a retailer that carries major sprayer pump brands like Hypro, Udor, Comet, Banjo, Myers and SHURflo, to name a few. Since not all brands manufacture all pump types, at Sprayer Depot you’ll find a better selection for your needs and a more knowledgeable team to answer any questions. Sprayer Depot carries all the major brands for practically every type of spray pump at the best price.

pump

Tip #2: Price Matching
Speaking of price, don’t be afraid to shop around. You’ll find out more about the product you’re looking for from kicking the proverbial tires at a few shops before settling on one. That will also give you a chance to scope out who has the best pricing policy – for example Sprayer Depot will match any competitor’s price (must be an authorized dealer/distributor). We strive to offer the lowest price on all major spray pump brands, but if you happen to find a lower advertised price from an authorized distributor, Sprayer Depot will match or beat that price! When you’re shopping for a part like a pump you know your going to have to spend a pretty penny so why not get the best deal.

Tip #3: Customer Service
You’re a pro so the customer service team from any retailer won’t show you how to do your job, but they can offer some insight into the latest tricks of the trade. At Sprayer Depot, our knowledgeable customer service technicians have more than 55 years of combined experience in the industry. Many of them have worked their way into the role through production jobs building the very sprayer you use today. So they know their stuff and speak your language. Plus, they’re not sales guys aiming to make commission – they genuinely enjoy what they do and strive to assist folks in finding the product that’s best for their needs.

So the next time you’re in the market for a spray pump, or really anything for your sprayer equipment, remember to consider inventory, price match policies and customer service. Better yet, just give the guys at Sprayer Depot a call or visit the online store. You’ll be in good hands.

Topics: Spray Equipment Maintenance, Hypro, Udor, Diaphragm pumps, Sprayer Depot, Sprayer Parts, diaphragm pump, Diapgragm pumps, sprayer, Centrifugal Pump, Roller Pump, centrifugal pumps, roller pumps, sprayer pumps, Udor Pumps, Transfer Pumps, Hypro Pump, Sprayer Pump, Roller Pump Repair, spray pumps, centrifrugal pump, Shurflo, sprayer equipment, parts, Comet Pumps, Triple Diaphragm Pumps, Pump, sprayer tips and tricks, customer service, Banjo, Myers, Myers Pumps, Banjo pumps, SHURflo pumps, buyer beware, price match, best price, lowest price

Common Causes of Pump Failure

Posted by Marketing Manager on Fri, Mar 21, 2014

Contributed by Guest Blogger:  John Lang, Hypro

Three Steps to Prevent Pump Failure

Your pump can fail or become inoperative when left dormant for long periods of time. The elastomeric (rubber) components, when left in a compressed state, will take a “set”. When this happens the rubber components deform to their compressed state  over time and don’t properly respond when brought back into service. The rubber components are also susceptible to “drying out” when stored without liquid in them. The elastomers don’t actually dry out but some chemistries that have come in contact with the elastomer can react with air and become hard and brittle.  To prevent these types of failure during seasonal storage perform these three operations.  
 Hypro Pump
  1. Adequately flush the pump and solution system to remove all residue of chemicals. Check the label of the chemicals used for recommendation on what agent should be used to best clean and neutralize the sprayer components.
  2. To prevent oxidation of components it is always good practice to fill solution system components with some form of antifreeze and spray a small volume through the system (from tank to nozzle). This procedure will prevent elastomer components from “drying out”.
  3. Leave regulators and unloaders in a loose or open state so that they don’t stick on startup and fail the pump.

Kings 3 Point Hitch SprayerGet it Ready

When pulling the sprayer out and getting it ready for operation be aware that the pump is dependent upon the proper functioning of the system components. Perform these three steps to check the system out before going to full on operation.
  • Check maintenance schedule for pump. The best time for maintenance is before the season begins when the system is clear of hazardous chemicals.
  • Cycle unloader valves and pressure regulators to be sure they are not stuck in place. If you feel the component is not free perform service on the component.
  • Check pump to see that it is not stuck. If the pump is driven by a mechanical drive, rotate the pump by hand to check that pump is free. An electrical driven pump that has a closed couple drive should be run in short bursts to determine that pump operating as expected. Always set the sprayer to a low pressure setting for initial startup and check sprayer for leaky joints.
Performing these simple checks early can help you achieve the timeliness of your application when it is needed. 

Download the


Topics: Spray Equipment Maintenance, sprayer, Centrifugal Pump, Roller Pump, centrifugal pumps, roller pumps, sprayer pumps

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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