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Roller or centrifugal pump for sprayer?

pbutler

Posted 5/28/ 20:53 (#)
Subject: Roller or centrifugal pump for sprayer?

Macon, IL

Macon, IL

Got main sprayer rolling again but am just a pump and valves shy of having backup going. 2nd sprayer will be 540 pto. Roller pump a lot cheaper, I have olny had centrifugal before, what are advantages and disadvantages to roller? dzluvr

Posted 5/28/ 21:04 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

other than the cost not much ,,,,,,centrifugal will last longer and has higher volume output (agitates better ) plus if you have an eductoron the sprayer,,,, roller will not do the job also roller is more sensitive to rpm versus pressure JoshuaGA

Posted 5/28/ 21:11 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

Sumner GA, Located in southwest GA,

Sumner GA, Located in southwest GA,

If you can set it up, I never hear bad things about centrifugal pumps. That said, my sprayer has a six roller pump on it, new pumps work great, they wear horribly however, I can run half throttle 540 and get it, in a couple of years you won't get full pressure running full speed. They work, but they are cheap for a reason. PhilJ

Posted 5/28/ 21:45 (# - in reply to #)
Subject: Re: Roller or centrifugal pump for sprayer?

NEWTON, IL (SE IL.)

NEWTON, IL (SE IL.)

Paul I think you'd be happier if you bit the bullet & got a centrifigul. I'd also suggest to get one that matches your other, that way all parts interchange, & if one shoots craps you can swap.
All the above comments on the rollers are correct. It'll work, but the centrifugal is better & a lot more versatile.
PhilJ earp

Posted 5/28/ 22:00 (# - in reply to #)
Subject: Re: Roller or centrifugal pump for sprayer?

Manila, Ar

Manila, Ar

I like centrif pumps over the roller hands down.............personally hydralic pumps are my fav......:) wayneNWAR

Posted 5/28/ 23:00 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

north west arkansas

We could only get a season out of a roller pump. pbutler

Posted 5/28/ 23:00 (# - in reply to #)
Subject: Re: Roller or centrifugal pump for sprayer?

Macon, IL

Macon, IL

Great point on interchanging parts Phil! Thx.

I miss Gifford too. Will give you a call next week. ILLRick

Posted 5/28/ 23:08 (# - in reply to #)
Subject: Re: Roller or centrifugal pump for sprayer?

ECIL

Roller pumps can generate higher pressures, centrifugal = higher volumes. Higher volume means you can travel faster and cover more acres. Roller pumps don't put out the same volumes as centrifugal pumps and with pumps nowadays the centrifugal will most likely provide ample pressure. Roller needs a pressure relief valve, centrifugal does not. Pressure relief valve means constant agitation which can be detrimental with some chemicals due to foaming. They can also stick if improperly maintained. Roller is easier to rebuild. Centrifugal, if hydraulic drive, can be run at lower engine rpms and still get necessary volume and pressure. Any abrasive chemical such as atrazine is a lot harder on roller pumps. Unless you are setting up a 40ft boom to spray 2-4,D or glyphosate get the centrifugal. It is much more versatile. There is a reason you don't see roller pumps on larger sprayers. As for drive systems, the hydraulic is the most efficient. The engine can be run at lower rpms than a pto driven pump and a drive shaft isn't needed. Be sure to get the one that matches to the tractor hydraulic system. I used to have a sprayer with a roller pump. Spraying with a centrifugal is a joy compared to what that roller pump was. Hope this helps. reedfarmer

Posted 5/29/ 00:34 (# - in reply to #)
Subject: Re: Roller or centrifugal pump for sprayer?

Eastern Arkansas

I used to go through 1 roller pump a year. After I started filling them with cheap hydraulic fluid when I put them up for the winter I found they last alot longer. School Of Hard Knock

Posted 5/29/ 00:50 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

just a tish NE of central ND

You couldn't give me a free new roller pump......Just my opinion though High wear out rate /yearly problems if you use them even only moderately. Overhauls never make them quite like they were when the were new. JohnW

Posted 5/29/ 02:33 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

NW Washington

One other thing, if you are going to be spraying Roundup you should buy the more expensive roller pump that is made not to be corroded by the glyphosate . I think Hypro calls theirs the Silver series. There are different pump rollers options to consider too

http://www.hypropumps.com/en-us/Products/Pumps/Roller/ Adrian

Posted 5/29/ 08:58 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

South Georgia

South Georgia

I posted in the other version of this thread last night, but I thought I'd add: If you ever, ever, ever think you might spray something in a wettable powder or other abrasive formulation, then DO NOT think about a roller pump. Been there and done that. You can wear out a brand new roller pump (even the really expensive Roundup Ready pumps) in a matter of hours or days when used with an abrasive substance.

If we still haven't talked you out of a roller pump, say so and I'll try some more. ;)

Adrian pbutler

Posted 5/29/ 09:08 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

Macon, IL

Macon, IL

Mission Accomplished. ;) Thanks. IowaMark

Posted 5/29/ 18:02 (# - in reply to #)
Subject: RE: Roller or centrifugal pump for sprayer?

NW Iowa. / SW Arizona

NW Iowa. / SW Arizona

I didn't read all the remark so if this is repeated sorry. I started with a roller pump 35 years ago then switched to a centrifugal. Then switched to a hydraulic probably 10 years ago & love these. I don't know how much you plan to spray but if your tractor can handle the hydraulic pump go that route first, centrifical second & roller last. JMHO. Good luck, Mark

I have been going through training for one of the most important turbo machinery for industrial application. Welcome to the wondrous world of centrifugal pumps - the unsung heroes of industries everywhere, tirelessly spinning away like overly-caffeinated hamsters on a mission! In this guide, we're going to dive into the centrifugal pump universe, where impellers whirl, casings corral, and fluids flow with the grace of a dancer.

So, grab your blankets and prepare to plunge into the delightful depths of pump anatomy, where we'll dissect these mechanical marvels like a curious kid taking apart a toaster (but hopefully with fewer electrical shocks). Centrifugal pumps are the unsung heroes of various industries, silently working to increase fluid pressure and facilitate countless processes. In this guide, we'll delve into the fundamentals of centrifugal pumps, dissecting their anatomy, exploring their applications, and unraveling the diverse types available.

With competitive price and timely delivery, SUNBO PUMP sincerely hope to be your supplier and partner.

Understanding the Anatomy

At the heart of every centrifugal pump lies a set of key components:

1. Impeller: This rotating mechanism is the powerhouse of the pump, imparting energy to the fluid by accelerating it outward.

2. Casing: Serving as the outer housing, the casing houses the impeller and guides the flow of fluid.

3. Volute: A spiral-shaped housing within the casing, the volute collects and directs fluid from the impeller to the discharge nozzle.

4. Discharge Nozzle: This is where the high-pressure fluid exits the pump.

5. Suction Nozzle: The inlet of the pump, where low-pressure fluid enters.

6. Suction Pipe and Discharge Pipe: These pipes respectively carry fluid from the source to the pump inlet and from the pump outlet to the destination.

7. Wear Rings: Essential for minimizing wear between the impeller and casing.

8. Shaft: Connecting the impeller to the motor, the shaft transfers torque to the impeller.

9. Mechanical Seal: Preventing fluid leakage between the rotating shaft and stationary casing.

Before getting into intricacies of centrifugal pumps in this articles and the upcoming ones, I would like to quote Neil deGrasse Tyson:

The universe in under no obligation to make sense to you.

This was meant to indicate that learning new things might be overwhelming initially, but it does not have to make sense to you. Just kidding .... when you linger long enough around a concept or a thing you will eventually figure it out. With this let's dive into the applications of the centrifugal pumps.

Applications and Types

Centrifugal pumps find applications across diverse industries, including oil and gas, chemical processing, power generation, water and wastewater treatment, and HVAC systems. Here are some common types:

1. Radial Flow Pump: Directs fluid radially outward.

2. Axial Flow Pump: Directs fluid parallel to the axis of rotation.

3. Mixed Flow Pump: Combines elements of both radial and axial flow pumps.

4. Vertical Centrifugal Pump: Mounted with the impeller above the suction nozzle, allowing for self-priming.

5. Submersible Pump: Designed to operate while fully submerged in the fluid it pumps.

6. Multistage Pump: Features multiple impellers arranged in series for high-pressure increases.

7. Booster Pump: Used to increase the pressure of fluid in a system already under pressure.

Materials and Considerations

The choice of materials for centrifugal pump components depends on the fluid being pumped and service conditions. Factors such as corrosion resistance, abrasion resistance, and temperature tolerance play crucial roles in material selection.

In the grand symphony of industrial gas generation, centrifugal pumps take center stage, orchestrating the smooth flow of gases with efficiency. So, the next time you marvel at a perfectly pressurized gas system, remember to tip your hat to the humble centrifugal pump, silently spinning away in the background, making it all possible.

With this I would like to end this article and contemplate about what should be included in the upcoming articles getting to know our best friend aka Centrifugal pump in further detail.

Adios los curiosos!

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