Pumps experience a wide variety of pressures and loads during operation, and it is important for operators to know how and when they occur. "Vane pass" is no exception. This term refers to the pressure pulsations generated within the pump as the impeller vanes pass the..Read More
Pump Fundamentals Blog
To operate your pump at optimum efficiency, you may have to periodically adjust the flow rate in the slurry system. But in a slurry system, you can't vary flow by using valves as you do in a simple water-pump system. Instead, you have to use the pump itself to control the..Read More
When it comes to choosing the right slurry pump, you must consider not only your specific application, but the classification of the slurry you are pumping as well. Choosing the right pump for specific slurries can help pump owners avoid unnecessary maintenance, repairs, and..Read More
As a developer of first-class slurry solutions, GIW credits its success to the dedicated teams that serve across many departments and service functions. The GIW family is proud to recognize the employees who help our customers realize their goals and make sure every step of..Read More
A: One of the most important things to know when you’re operating a pipeline is the flow rate, which is typically measured in cubic meters per hour (m3/h), liters per second (l/s), or gallons per minute (gpm).
Although many methods for measuring flow exist, slurry pump..Read More
Operators in the mining industry are aware that centrifugal pump systems are subject to pressures and forces. To minimize stress and lower the risk of damage, customers should educate themselves about these loads, how they can impact their systems, and how to counteract them..Read More
The process of assembling a pump system comes with many steps and plenty of room for error. That’s why operators must understand the requirements for pump assembly related to fastener torque, which is often considered the most important part of assembly. Here is what you..Read More
Every pump operator — from engineers with years of experience to those just starting their careers — understands the importance of continued learning. Although many engineers consider themselves slurry pump experts, even the most seasoned professionals occasionally make..Read More
A gasket is just a gasket, right? It’s just a ring that sits next to the impeller.
So why do GIW Industries Inc. gaskets have notches in them?Read More
After a recent training course, one of our participants sent us a compelling question. He noted that the training had emphasized the importance of the warning plates GIW Industries, Inc. affixes to our slurry pumps. He said some of the plates were missing from his older..Read More
Every pumping operation comes with a unique set of challenges. Some of these challenges emerge as a result of the techniques or tools used to extract the product. For example, some operators add chemical agents to their slurry that froth and separate the desired ore from the..Read More
GIW would not be the company it is today, consistently meeting the needs of our customers without the dedication of our talented employees. The GIW family is proud to have passionate team members located around the world. We are grateful for each employee’s contributions...Read More
Pump “snoring” or “snore state” refers to a pump’s continuous operation despite the absence of liquid. Many pumping operations have collection tanks designed to capture runoff or wash-down liquid and solids. A pump is used to remove that slurry before it overflows into the..Read More
In general, the practice of “pumping through” an idle pump should be avoided. Energy is wasted and the wetted parts of the pump will still wear out, in some cases faster than a normally operating pump, due to the undesirable flow patterns caused by pumping through. In cases..Read More
At GIW, we are committed to going the extra mile when it comes to sharing our pumping expertise with customers and industry professionals. That’s why, for more than 40 years, we have hosted training courses on topics in slurry transport and pump maintenance. Our intensive..Read More
This question is surprisingly common. Most people think of pipelines as running horizontally, but many GIW Industries, Inc. customers who pump ore need to move their material from the ground floor up three or four stories to a cyclone or other process operation.Read More
Every good pump operator understands the importance of a functional and regularly maintained stuffing box. When working properly, the stuffing box separates rotating and non-rotating parts within the pump shaft and prevents slurry leakage. Less commonly understood, however,..Read More
Q: We're seeing the appearance of small cracks in our suction liner and impeller. The wear is unusual and seems premature. What's going on?Read More
What question does GIW hear most often from customers? Hands down, it’s this one: "What does LSA stand for?"
The LSA acronym's current meaning (and the one many readers might know) is "Low Maintenance, Severe Duty, Abrasion Resistant." The original meaning is a bit more..Read More
Water hammer is just one of many phenomena that can turn a normal day of slurry pumping into a nightmare. Since the consequences of water hammer can be severe, pump operators must understand what it is, how it occurs, and how to avoid it.Read More
At GIW Industries, Inc., we help our customers tackle some of the most complex pumping challenges every day. Although many problems make themselves known during the pumping process, others arise when the pump isn’t running or isn’t even assembled. One customer came to us with..Read More
To answer this question, we spoke with Reab Berry, former Head of Global Mining Training and Development for GIW Industries, Inc.
“There’s a particle size that’s well-known in the slurry transport industry as the Murphian particle size,” Mr. Berry says. “In the world of..Read More
GIW Industries, Inc. pump parts come in all shapes and sizes. Not knowing how to move them properly can complicate processes such as installation and removal. Improper transport procedures also risk damage to the pump or its operators. To ensure safety and avoid damage, you..Read More
When it comes to your everyday pumping questions, the answers aren’t always easy to find. Fortunately, we’ve put together a list of solutions to some commonly asked questions GIW Industries, Inc. technicians have received over the years.Read More
While GIW Industries, Inc.’s pumps help our customers succeed every day, some materials can break down over time — either from misuse or from contact with abrasive or corrosive materials. One customer recently experienced a leak that resulted from a worn shaft sleeve. Here’s..Read More
Q: Can I reduce pump wear if I install a larger pump?
A: The simple answer is probably not. You can actually increase pump wear if your pump is too large for your particular application.
"This answer seems counterintuitive to many people when they hear it," notes Reab Berry,..Read More
Each day, GIW Industries, Inc., engineers work with our customers to solve problems associated with their pumps. One pump component we get a lot of questions about is the cartridge bearing assembly. We spoke to Jon Keith, GIW Product Manager, about three problems faced by..Read More
The pump performance chart above is a graphical representation of performance for a particular pump. By using this chart, you can see the head, or pressure, that the pump produces at various flow rates and at different speeds. For example, at 560 RPM, the pump will produce..Read More
On a GIW Industries, Inc., LSA or similar pump, a special gasket seals the joint between the suction liner and the pump casing. This gasket is a variation of a simple O-ring gasket, except it has a cross-sectional shape of a trapezoid. The exclusive design provides an..Read More
One pump operator recently came to GIW Industries, Inc., with a startling but not unique problem: Slurry was leaking from the back of his stuffing box. We reached out to Technical Services Manager Kenny Meyer about stuffing box malfunctions, some potential consequences, and..Read More
When it comes to extracting materials from a slurry, the method of extraction can have as many consequences as it does advantages. In some processes, air is injected into the slurry, which separates the desired materials (such as ore) from the discardable liquid. Froth..Read More
When it comes to efficient slurry pumping, understanding how the solids within a slurry behave is very important. Depending on the particle size, distribution, concentration, and character of solids, the slurry can be either “settling” or “non-settling.” Non-settling..Read More
If you’re an experienced slurry pump operator, you’re aware of some of the reasons for high rates of pump wear — which can negatively affect pump performance over time. Although slurry characteristics such as particle size and concentration may first come to mind, an..Read More
If you own or have ever seen an older pump’s bearing assembly, you’re probably familiar with the old oil breather. If this is the case, you may be surprised or confused when you see a GIW® Minerals pump that doesn’t have one.
That’s because GIW bearing assemblies no longer..Read More
It may be comforting to know that if your slurry pump breaks down, GIW Industries has your back. Our team of service techs can help you repair or replace your equipment. But what happens to the scrap that gets left behind?Read More
On a day-to-day basis, slurry pump operators need to consider a range of critical factors, from particle size and flow rate to concentration and part wear. Among these is the phenomenon of pipe friction loss due to solids, which if not accounted for can affect the..Read More
With so many product lines and acronyms, it can seem as though all of the pumps produced by GIW Industries Inc. are a bit random. However, our products are more related than you may realize. Each pump is a unique part of a giant family tree and, like any family, we have all..Read More
It seems like a hack exists for everything these days. From a quicker way to wash your car to unusual ways to remove wood scuffs, there’s a shortcut for doing just about all your everyday chores better, faster, or cheaper. What about at work, though? If you’re pumping slurry,..Read More
It may sound like an odd pairing, but baby powder and your slurry pumps actually have a lot in common.
Talcum powder acts as a dry lubricant and can absorb moisture, oils, and odors. These properties make it an important ingredient in baby powders, foot powders, first-aid..Read More
When selecting a technical service partner, it can be tempting to rush and choose the first company that turns up — or skip the partnership altogether and keep services in-house. However, in addition to salary and benefits expenses for in-house service technicians, hasty..Read More
Are you experiencing issues with your slurry pipeline? Your system may be delivering insufficient tonnage, or your flow rates may be lower than you’d like. A range of factors could be responsible for these pipeline troubles, but a significant one to watch for is slurry..Read More
If you’re a slurry pump operator, problems like leakage, overheating, and system inefficiencies may keep you up at night. Such pumping system issues are often more complex and expensive than you might realize. In fact, over 80% of all pumping problems have to do with the..Read More
Are you dealing with an underperforming pump? Are you trying to decide which centrifugal slurry pump will best meet your growing facility’s needs? When it’s time to replace parts or select a new pump, operation managers have many choices — and they go far beyond the basic..Read More
High-performing centrifugal slurry pumps are vital to your operation’s success. The parts you supply those pumps with are even more important since they ensure your pumps operate at optimal efficiency. Without quality parts, pumps can suffer and require increased maintenance..Read More
Pump performance curves help slurry pump owners and operators select their pumps and operate them optimally. How can pump owners calculate their slurry performance curves, and should they be able to read water curves manually?Read More
Since impellers are high-wearing slurry pump components, owners and operators need to maintain and remove impellers from their pump shafts when shaft sleeves or the impellers themselves require repairs or replacement. In fact, maintenance is of special importance as the..Read More
What’s in your slurry? When it comes to choosing the right slurry pump for your application, you have a few options to choose from. Learn more about slurry pump types, what materials suit each pump best, and how to find the right type.Read More
Choosing the proper GIW Industries Inc. pump based on your needs is only the first step toward achieving enhanced operational efficiency. Finding and incorporating equipment necessary for installation and maintenance come next. Lifting devices are high on that list, necessary..Read More
GIW Industries Inc. pumps are integral to mining operations and proper pump maintenance is always a top priority. The key to maintaining any complex machinery is being proactive rather than reactive. That’s why shaft sleeves and their maintenance are so essential to slurry..Read More
While many centrifugal slurry pump owners choose expellers or stuffing boxes over mechanical seals, mechanical seals can offer significant savings if maintained correctly. They eliminate the need for gland water that stuffing boxes require, minimizing water consumption and..Read More
Equipment retention is a critical aspect in maintaining any piece of machinery. But knowing the right steps and the right tools you need to keep your equipment functioning properly can get tricky. When it comes to centrifugal slurry pump maintenance, a stuffing box is the..Read More
It’s a common-sense fact: Lubrication plays a vital role in the function and longevity of any pump. However, users often overlook the type of oil used.Read More
One of the best ways to determine a pump’s capabilities is by looking at a pump performance curve. When read properly, this graph can tell you the exact flow rate and pressure at which your pump should be running for maximum efficiency. Combined with a system curve, which..Read More
Are you struggling with your centrifugal slurry pump? Maybe you’re dealing with serious pump damage, ranging from pump housing failure to impeller destruction. Perhaps you’re baffled by excess energy usage. Or, possibly most obvious of all, you could be hearing distinct..Read More
Whether you’re moving tailings a long distance or working in a demanding mill circuit application, chances are good you’ll be relying on more than one pump to get the job done. Installing a series of slurry pumps can eradicate high flow and high head issues, and it also..Read More
Winter is coming; are your pumps ready? Here are the steps you should take to ensure your pumps are primed for even the harshest conditions.Read More
If you’re struggling with the wear life of your pump’s parts, you may not be operating optimally. Use these tips to boost your efficiency and reduce maintenance costs.Read More
The development engineers at KSB have not only improved the operating reliability of the proven waste water hydraulic systems but also increased the pump’s hydraulic efficiency. KSB introduces the new generation KRT with the new Max impellers.
Anyone remember the old cars of the 1950’s and 1960’s? They all pretty much came equipped with an ammeter, an oil pressure gauge, a water temperature gauge as well as a speedometer and a fuel level gauge. Then came the 70’s, 80’s, even the 90’s and turn of the century cars,..Read More
Operating a wastewater facility is no easy task in today’s world. There are many challenges that owners / operators face, including sewage composition, water consumption, and an aging infrastructure. In the case of sewage composition, the composition of wastewater can be very..Read More
With modern combined cycle power/steam generation plants, the Heat Recovery Steam Generator (HRSG) is the major connection from the Combustion Turbine Generator (CTG) to the Steam Turbine Generator (STG).Read More
We work with many clients across the continent, and it has become very simple to see a trend in their types of questions and concerns. From these trends, you many times find that an effect of an issue can mask the real problems that are occurring. Rolling element bearings..Read More
Topics: Tech Tips
When specifying the impeller material for a non-clog sewage pump, how do you know whether to select cast iron or hard iron material? Usually, a hard iron material is only required if your non-clog pump utilizes a semi-open impeller. A semi-open impeller does not have a shroud..Read More
Part 2 of 6 Series - Chopping or Cutting: what is the best method in handling difficult waste water applications?
While chopper or cutter pumps are often specified for difficult waste water applications, it is important for end users and engineers to consider the whole..Read More
Part 1 of 6 Series - Complex problems for sewer systems worldwide caused by shifting trends in water use and a changing sewage composition.Read More