A seal can be exposed to a wide variety of operating conditions—sometimes very different from conditions the seal was intended for—which can cause issues down the line. However, even if your seal is the right one for the job, there can be times when it fails faster than anticipated. When this happens, it’s imperative that […]
Here are some quick guidelines to maintain your pump properly, ensuring you get maximum pump life possible. It is important to ensure the pump stays FULLY submerged at all times. Running a submersible pump in air for extended periods may result in motor damage. This can be accomplished by following Tsurumi’s guidelines.
Introduction When determining the level of performance of air-operated double-diaphragm (AODD) pumps, choosing the correct air motor is generally the most important choice the user will have to make. Also significant, however, is selecting the right type of diaphragm, the operation and reliability of which will directly impact the pump’s mean time between failure (MTBF), […]
The workflow presented here describes the fast and cost-effective optimization of an axial pump with modern software tools. Motivation Turbomachinery design is still very complex and time-consuming if it is executed manually. In order to save time and thus reduce costs, automatic optimization is a suitable approach. The following describes a robust and easy to […]
By John Wallace, Sales Director US & Canada, Diaphragm Group | PSG® Introduction When Jim Wilden invented, in 1955, the air-operated double-diaphragm (AODD) pumping principle, it’s no exaggeration to say that he also created the diaphragm- pump industry. As the creator of AODD-pump technology, Wilden and his eponymous brand established a standard for highly engineered […]
Gravity Sewer Systems Conventional gravity sewer systems collect wastewater from homes and transport it to a collection line by allowing gravity to force the flow of liquid and solids. There are no pumps or pressurized components in tradition gravity sewer systems but this method requires the digging of wide, downward-sloping trenches to serve as an […]
Contributor: Carver Pump Vertical cantilever pumps are centrifugal pumps designed in a way where the impeller is “cantilevered” from the motor and baseplate (a cantilevered structure is one that is anchored at only one end – think of a diving board at the edge of a swimming pool). In a cantilevered pump, only the impellers, […]
Typical selection criteria for centrifugal pumps are their design data (flow rate or capacity Q, discharge head H, speed of rotation n and NPSH), the properties of the fluid pumped, the application, the place of installation and the applicable regulations, specifications, laws and codes. KSB offers a broad range of pump types to meet the […]
Check out this Tsurumi Pump step-by-step guide on how to change a cable on a Tsurumi HS series pump. A step-by-step video explanation on how to replace a damaged power cable.
Introduction Cavitation and net positive suction head (NPSH) issues are common detriments to effective pump operation that are often misunderstood. Entire plant systems can fail unexpectedly as a result of a mechanical-seal or pump component failure. Plant operators may observe: “it sounds like gravel is being pumped through our pipe” or “the pipe is shaking” […]
INTRODUCTION Cavitation is a thermodynamically non-reversible process defined as the formation and subsequent collapse of vapor bubbles caused by the drop in pressure in the fluid domain, as illustrated in Figure 1. The collapse of these bubbles can produce a shock wave strong enough to damage machine parts, and as such, cavitation is usually an […]