Thursday, March 29, 2012

Fully automatic prime/re-priming system handles air/liquid mixtures with ease

Cornell’s Redi-Prime® system addresses the fundamental requirement of customers to have pumps that are easy to operate, re-prime under lift condition, and eliminate carry-over issues of liquids when priming the pump.  Repriming becomes important when entrainment (due to a snore condition) or vortexing occurs. The vacuum pump is always running, so when the liquid component is missing, the float will drop to actuate  the priming process again automatically. This allows the unit to prime and reprime indefinitely.

The Redi-Prime® system utilizes patented technology, removing the requirement for a manual shut-off valve to ensure no liquid is carried over to diaphragm vacuum pump. The innovative sealing float box on Cornell Redi-Prime® systems utilizes a separator seat to accomplish this task.

Many other self-priming pumps employ a manual shut off valve on the air line between the vacuum box and the separator box. While this design addresses the problem of liquid carry over to the diaphragm vacuum pump, it does require the cost and inconvenience of an on-site attendant. Depending upon the issue, some carry over of liquid can deploy through the discharge pump onto the ground.

Redi-Prime® pumps employ a positive sealing float box; removing the need for an attendant to manually shut of the pump, and eliminating carry over discharge. These pumps use an industry leading wear elastomer formulation on the pumps. The design has been used successfully for more than a decade. Customer reported failure rate is considerably lower with Cornell products than in the industry as a whole. Other manufactures pumps have been reported to fail at significantly higher rates because of cracking and degradation of their elastomers.

Cornell’s Redi-Prime® perform so well in part because our pumps have an external lubricant and auxiliary gland—these innovations prevent drying of the seal faces when the pump is priming, re-priming, in stand by, or in run dry operating conditions. The external lubricant reservoir also acts as a heat sink, dissipating heat in the seal box area and extending seal life.

In some instances, customers have complained of excessive fail rates of competitors’ priming systems, leading to expensive downtime. When those priming systems have replaced with a Cornell system, the fail rate was markedly lower—saving valuable time and money.

Another key differentiating feature is the need for an enclosed bracket. Some pump manufacturers use one, which serves as an integral seal oil reservoir for run dry applications. Enclosed brackets increase the potential for bearing failure due to mechanical seal assembly breakdown. When this happens, pressurized liquid can flow through the failed mechanical seal into the integral seal oil reservoir / bearing frame assembly. Once that occurs, the bearings will be contaminated because of the lip seal fails in the bracket, ultimately causing the bearings to fail.

Cornell attacks the problem of seal failure with our patented Cycloseal® design. Incorporating deflector vanes in the backplate, a cyclonic action is created by impeller back vanes spinning in normal operation. That swirling action facilities the displacement of solids and abrasive material from the seal area, extending seal life and eliminating the requirement for a water flush.

The Cycloseal® also includes a John Crane convolution industrial duty elastomer bellows shaft seal constructed of tungsten carbide vs. silicon carbide seal faces and Viton elastomers. The John Crane seals are designed with a drive band and drive notches to stop overstressing of the bellows. Slippage is eliminated, protecting the shaft and sleeve from wear and scoring.

Additionally, the automatic adjustment feature associated with the John Crane seal compensates for abnormal shaft end play runout, primary ring wear and equipment tolerances. Axial and radial shaft movement is compensated for with uniform spring pressure.

Our commitment to your uptime is why Cornell is one of the few pump companies to offer the industry leading John Crane mechanical seals as standard.

To find out more about Redi-Prime® and Cycloseal technologies on Cornell Pumps, please contact your sales representative, or visit

©Cornell Pump Company 2012

Wednesday, March 28, 2012

Pump Line Reader Survey ...

To request a copy of our newest issue of PUMPLINE, fill out this form or contact us here at Cornell Pump. Inside, you will find a bunch a great articles from our sales staff and distributors. Really great pieces on modern and current trends in the Pump Industry.

After reading our new PUMPLINE, go ahead and fill out this survey if you would, for a chance at some really great gifts from us here at Cornell. Your participation is greatly appreciated.

Monday, March 26, 2012


by richard holton

When mining companies in Alabama have problems, they look to Jim House & Associates (JH&A) for solutions.

Such was the case when a large mining company needed to keep water off of the longwall face underground and they looked toward Jim House & Associates to provide them with a solution.

JH&A has been in business since 1957 and is a premier solution provider in the Waste Water and the Mining/Industrial business. They have offices and full service shops in Birmingham and the Gulf Coast region in Alabama.

Mark Hall, a team member with JH&A, is a 25 year underground coal mining veteran and mining dewatering expert. He has been with JH&A for the last five years providing consulting, service and solutions for the mining and industrial sectors.

When Mark first called Cornell Pump with the application, it sounded easy enough. As he began to describe the application, confidence began to fade. He said “can’t is not an option” so Cornell had to figure something out.

The project required the ability to pump water from a sump that was located 1800’ from the longwall tailgate. This meant an 1850’ suction line with a very shallow low spot or sump as the water source. The elevation of the sump was 675’ and the elevation of the pump was 670’. The problem was not only the length of the suction line, but also the fact that line had multiple dips and rises along its length which kept the water from free flowing due to entrapped air.

Cornell, working with the JH&A team, found a viable solution. We proposed a 6NNT-F16 Redi-Prime® pump to remove the water and keep it off the long wall face once the longwall mined past the location. Based on the flow conditions, an appropriate line size for the suction was recommended that would minimize friction loss thus allowing Cornell to select a pump with the sufficient NPSHR to do the job. Cornell’s engineers calculated that a 12” suction line along with the 6NNT Redi-Prime®.

Another one of Mark’s favorite sayings is “Plan your work, and then work your plan. ” According to Mark, it was imperative that we keep as much water off the longwall face as possible. As they mine past these sumps, the electric MSHA submersibles pumps have to be pulled when the face reaches them. Mark explained that if Cornell Pump could provide an end suction pump to handle the water out of the tail gate entry then we could add a value for our customers that would be unprecedented. After we received all of the parameters we started to “work our plan.”

Cornell’s Redi-Prime® pumps are designed and engineered for the most rugged and demanding industries. Cornell’s Redi-Prime® system is also designed with the environment in mind. Cornell’s Redi-Prime® system utilizes a positive sealing float box and a mechanically driven low maintenance, high volume vacuum pump for rapid priming. This design allows absolutely no water carry-over from the priming system into the environment. Cornell Redi-Prime® pumps are also equipped with Cornell’s patented Cycloseal® and our Run Dry™ feature which extend seal life and protect the mechanical seal from damage caused by running dry.

Another issue faced was a very shallow sump, only 3’ deep. Engineering was concerned that once the suction started the application would experience vortex and introduce air into the system. Mark said “I can fix that.” He made a 5’ long strainer made out of 12”PVC pipe and drilled quarter inch holes in the bottom half of the pipe. Then he put a cap on the end of it and there was zero vortexing once the pump started. Mark, along with the mining company planned and ran the suction line down the #2 entry before there were any issues with falls of roof. Once we had everything in place and started the system we walked the suction line to listen for air leaks. We found multiple locations where the PVC suction pipe was introducing air into the system. Mark pulled out another trick and used clear shrink wrap to wrap around the couplings to stop the leaks. Once Mark controlled the leaks the Cornell 6NNT End Suction pump took 50 minutes to evacuate all the air from the 1850’ 12” suction line allowing the water to be transferred to another sump. This application kept water off the long wall face as they passed by the water. The long wall is 1600’ past the installation point and the Cornell is still pumping and the long wall face is dry with absolutely no loss of production due to water issues on the face!

JH&A’s willingness to trust Cornell with this tough application allowed us to take another step forward in our endeavors to increase our presence in underground mining applications, not only in Alabama, but across the world.

©Cornell Pump Company 2012

*for this and more articels like this, please visit or request a copy of CORNELL PUMP'S PUMPLINE. On the web or in print. Get your copy today.

Friday, March 23, 2012

2012 IIAR show - Milwaukee, WI.

Jim Kuller and Jon Ylvisaker had great traffic at the IIAR show in Milwaukee this week. They spoke to hundreds of enthusiastic conference attendees about our new seal installation tool, as well as the rest of our innovative refrigeration line. If you were there, we hope you had a great show.

Information about Cornell Pump’s industry leading Hermetic and Open-Drive refrigeration pumps is available here.

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Monday, March 19, 2012

REMOTE CONTROLLED AGITATORS: Cornell Pump Company Applications

©Cornell Pump Company 2012
Cornell Pumps Helps Agitate the Liquid Fertilizer Industry –With New Cutter Pump Outperforming Expectations

Numerous animal farms in the Midwest

The Problem:
A leading Midwest company specializing in liquid manure wants to agitate an entire manure lagoon, without tying up personnel and farm equipment that could be put to other uses. The manure needs to be agitated to ensure that the liquid fertilizer has an even mix of nutrients and to keep solids from settling into the bottom of the pond. Traditionally, lagoon agitation has been accomplished through use of a pump and/or propeller driven piece of equipment backed into the lagoon. This has often powered by a tractor. Using this method, only the area around the piece of equipment is agitated, tying up a valuable tractor and a farm hand. With this method, as soon as the agitation equipment is removed from that section of lagoon, the solids again begin to settle.

The Solution:
The company devised three diff erent sized Agitation Boats. The entire lagoon can be agitated continuously using a hand held remote control to move the boat. Once the lagoon is agitated, a properly fitted boat can be pulled up to the bank and used as the lead pump for a drag hose system. Engines on the boat power high-pressure guns that force manure down into the lagoon at rates of 4,000 GPM. The liquid fertilizer expelled is much more consistent, with more predictable nutrient levels.

Powering this innovation are Cornell Pumps. The Cornell 4514T pump is featured on their smaller boat, while the larger craft use either the 6NHTB pump or the new 6NHTB cutter pump.

End Results:
The Cornell 6NHTB cutter pump is performing very well on the lagoons—tackling even those applications with plentiful weeds and garbage that would clog a standard enclosed impeller pump. The extra material to pump doesn’t adversely affect pump performance—the 6NHTB still pumps with 80 percent efficiency when pushing the additional solids. A farmer using the boat even purposefully tried to clog the pump to test its efficiency, and was unable to clog it!

Friday, March 16, 2012


Cornell Pump Applications Engineers Jim Kuller and Jon Ylvisaker will display this newly made table-top pull-up at the IIAR 2012 Industrial Refrigeration Conference & Exhibition. Held March 18–21, 2012 in Milwaukee, WI the conference promises to be the largest meeting in the world dedicated exclusively to industrial refrigeration.

Stop by Booth #215 to meet with Jim and Jon, and learn how Cornell’s Open-Drive and Hermetic refrigeration pumps offer industry leading capabilities.

Jim Kuller - Cornell Pump Company 2012

Jon Ylvisaker - Cornell Pump Company 2012 

Thursday, March 15, 2012


Nation’s ‘Salad Bowl’ produces 15% of agricultural output, extensively relying on Cornell pumps.

The lunch you may be sitting down to enjoy while reading PUMPLINE could very well feature a product from the San Joaquin Valley. Fifteen percent of US agriculture products are grown in this fertile central valley of California; more than 150 different crops in all. Cornell Pump Company supplies pumps for irrigation and food processing throughout the San Joaquin Valley.

The valley is uniquely situated to take advantage of winters with sufficient rain fall, hot summers that quickly ripen crops, and brown loam soil well-suited for crop production. The most prominent agriculture crops include grapes, almonds, pistachios, oranges, lemons, tomatoes, carrots, lettuce, corn, and strawberries.

In addition to farm food products you may enjoy, your clothes might also have a California connection. The world’s largest single cotton farm, spanning more than 40,000 acres is operated by the J.G. Boswell Company in Kings County.

Specialty crops also thrive here. Stockton produces the majority of asparagus consumed in the state. Raisins are produced prodigiously in Fresno— taking advantage of abundant sunshine to convert sweet grapes into power-packed morsels.

Cornell Pump is proud to a primary supplier of water pumps in the area; allowing the nation’s ‘salad bowl’ to grow great produce, and the nearly 4 million people who live in the region to prosper. We have a strong commitment to the valley and its agriculture. We have a centralized warehouse in Kingsburg, California, in the heart of the valley, to allow quick delivery of pumps anywhere in the area. Cornell also offers individualized training seminars, featuring Agriculture Market Manager Bob Jansen. Bob can explain how pump systems work for your type of agriculture application, and suggest solutions to make your operation more efficient and effective.
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Monday, March 12, 2012

Pumpline Reader Survey ...

Complete a quick readers survey of PUMPLINE at ... Not only will your responses help make PUMPLINE better - but you can also enter a drawing for $100 VISA card. Survey open through March 30th, 2012. Thanks for participating.

Enter HERE:

View the newest PUMPLINE hereMARCH 2012

In this issue: 2415 MX Mining pump, San Joaquin valley farming, mine longwall dewatering solutions, cutter pumps, NW Mining show, remote controlled agitators, waste water drain commission, pumpline reader survey, gift cards and so much more. (1.3mb PDF)

©Cornell Pump Company 2012

Water Impedes Mining Operations

©Cornell Pump Company 2012
Richard Holton , Cornell Pump’s southeast regional manager wrote a case study on mine dewatering featured in the March 2012 edition of Pumps & Systems magazine. Learn how an innovative Cornell pump solution increased operational uptime and reduced energy costs.

...Innovative pump solution dewaters the longwall face of a mine, leading to more operational uptime and reduced energy costs.

Water is a consistent problem in mining operations. Operating underground in areas below the water table, water will seep, even pour, into a mine. Water can slow operations, lead to costly downtime and make the mine uneconomical to operate. Often, because of the nature of the shafts that are dug, the transfer route for removing the water is not straight, and the distances can be long.

Read the full story by Cornell's own Richard Holton in PUMP-ZONE here ...

Tuesday, March 6, 2012


Cornell’s new 2415MX High Head mining pump is released and ready for shipping.  Here are the specs and features on this exciting, new High Head Mining Pump:

3vanes, 4” suction, 2” discharge

Threaded impeller (15.22” max dia)
Double wear rings
CA6NM impeller
Ductile iron wet end
Max head: 740 ft!
Max flow at 2950rpm: 500gpm
Max operating speed: 2950rpm
Max hp @ max speed & trim: 150hp
.62” solids handling capability
17-4PH shaft
F18DB frame for all trims and speed range

Pump curves and dimension prints are located in the Cornell E-Catalog. See engineering for bill of material selection.