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Sprayer Depot Blog

Guest Post: How Centrifugal Pumps Are Different From Diaphragm Pumps

Posted by Sprayer Depot on Wed, Jun 08, 2016

Contributed by Guest Blogger: 
Mark Techler,  Factory Representative - Hypro & SHURflo Ag and Industrial Pumps and Accessories

Diaphragm pumps are recommended for sprayers needing pressures up to 700 Centrifugal_Pumps.jpgpsi, including applications like insecticide and fungicide spraying and spraying trees. If you need 100 psi or less for spraying or liquid transfer, consider a centrifugal pump, which will give you the option of higher flow plus these other features:

  • Centrifugal pumps are simple compared to diaphragm pumps. With so few moving parts, a centrifugal pump needs less maintenance and can last longer than a diaphragm pump. A centrifugal pump has no gearbox, diaphragms, check valves, sight glass, pulsation damper, gear lube, or crankcase oil.
  • Centrifugal pumps do not require a relief valve. When the spray boom or gun on a centrifugal discharge is shut off, and the pump continues to run, the liquid internally bypasses without damaging the pump as long as a vent line is in the system.
  • The line strainer can be plumbed into the discharge side of a centrifugal pump instead of the suction side as on a diaphragm pump. This eliminates the potential of a clogged strainer reducing flow to the pump suction port and causing cavitation. Use the Hypro 3350 series strainers that are rated at 200 psi.
  • Higher pressure on a diaphragm pump requires more hp. Higher pressure on a centrifugal pump requires less hp. You will get less flow with higher pressure on a centrifugal, but that flow may be adequate for your application. Always consult the pump performance chart.

Tips for using centrifugal pumps:

  • Consider both spray centrifugals (higher pressure) and transfer centrifugals (higher flow) when choosing a pump.
  • Know your material options: cast iron, stainless steel, polypropylene, and (for transfer pumps) aluminum.
  • Know your drive options: pedestal with belt and pulley or direct drive, hydraulic motor, gas engine, PTO drive with planetary gear, electric motor, and 12-volt clutch drive.
  • If your liquid source provides a flooded suction you can use a non-self-priming centrifugal. Use a self-priming centrifugal pump when the liquid source is below the pump.
  • Use inlet plumbing one pipe size greater than the suction port of the pump. You can choke down the discharge side but do not starve the suction side of the pump.
  • Use a vent line kit to improve priming, remove air from the pump, and to let hot water escape from the pump when the outlet is shutoff - and let cooler water in. This is cheap insurance against a seal failure.
  • Consider a Life Guard seal if you suspect a run dry condition. This silicon carbide seal is more abrasion resistant than standard carbon-ceramic seals and conducts heat away from the seal area, resulting in longer seal life. Use this with cast iron and stainless pumps only.
  • Increase pressure by running at 6000 rpm. Hypro cast iron pedestal pumps can be belt driven to 75 gpm at 140 psi by running at 6000 rpm.

Centrifugal pumps are a low cost of maintenance option for spraying and transferring liquids.

Shop Hypro Centrifugal Pumps  

 

 

Topics: Hypro, Diaphragm pumps, sprayer, Centrifugal Pump, Transfer Pumps, Guest blog

Learn Which Transfer Pump is Right For You

Posted by Sprayer Depot on Wed, May 25, 2016

Hypro pumps are some of the most popular items in our inventory. They are always in-stock and ready to ship. Hypro offers a wide selection of pumps such as diaphragm pumps, roller pumps, transfer pumps and piston pumps, just to mention a few. These can be utilized in a variety of industries and are capable of handling many different liquids. Transfer pumps, in particular, are widely used for spray equipment and can help you tackle both the simplest and toughest of spraying jobs. 

Hypro_transfer_pumps.jpg

Mark Techler, from Techler and Associates, is a Hypro & SHURflo Ag factory representative. He has extensive knowledge of Hypro products and has guest-blogged for Sprayer Depot in the past. You might have read some of his previous guest posts such as: Comparison of Roller to Diaphragm Pumps for Horticultural Spraying or Advantages of Poly Head Diaphragm Pumps

We recently asked him to share his knowledge on transfer pumps, so continue reading below for a technical review of Hypro's top transfer pump options: 

 

Contributed by guest blogger:  Mark Techler, Techler & Associates

Transfer Pumps

Transfer pumps are self-priming centrifugal pumps designed for high volume and low pressure. Typical uses of these pumps include:

  • Filling a sprayer tank from a nurse tank or standing water

  • Watering seedbeds, recently planted foliage, turf, and trees

  • Dust control and other low pressure spraying

  • Transferring fertilizer from holding tanks to sprayer tanks 

  • Providing water flow for a CleanLoad Chemical Eductor  

  • Irrigation

  • Dewatering

They boast some powerful features such as flow rates of up to 440 gpm. Connection sizes are 2 or 3 inch NPT. You can choose from three pump materials: Polypropylene Pumps are great for light weight, corrosion resistant applications; Aluminum Pumps are an economical choice for water transfer; Cast Iron Pumps are available for more rugged situations, like up to 3/8” solids in the suction line, or physical abuse.

You can choose from three drive types:

  • Gas Engine Drive Pumps are portable and versatile.
  • Hydraulic Drive Pumps are reliable and convenient for mobile equipment that includes hydraulics.
  • Pedestal Pumps can be coupled to other drive sources, like electric motors.Hypro Transfer Pump 1542P

A good value for a popular transfer pump is Hypro 1542P-65SP. This 2 x 2 polypropylene pump has a max flow of 200 gpm, and includes an EPA certified PowerPro 6.5 hp gas engine with low oil shutdown. The polypro housing, EPDM seal, and EPDM flapper are resistant to corrosion from most fertilizers and ag chemicals. The PowerPro engine carries a one year warranty.

If you need to transfer water, the best deal is Hypro 1542A-65SP, an aluminum 2 x 2 transfer pump with 6.5 hp PowerPro engine. With materials of construction suitable for water and mild chemicals, this is an economical and rugged metal pump with a max flow of 150 gpm.

There you have it! A quick and simple technical guide to help you choose the best transfer pump for your job. Stay tuned for an upcoming blog post that will feature PowerPro Engines.

Need assistance with your order? Our Customer Service Technicians are available to answer your questions M-F 8:00 a.m. - 5:00 p.m., contact us today!

Shop Transfer Pumps

 

Topics: Hypro, centrifugal pumps, Transfer Pumps, Hypro Pump, Guest blog

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

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