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- Pump Systems Manufacturer's Directory 6:02pm Dec 30
- "Grinder Pumps in Pressure Sewers" Free Webinar 5:59pm Dec 30
Pumps & Systems
Polymeric Solution for Pumps Suffering from Cavitation
Cavitation is defined as the phenomenon of formation and consequent implosion of vapor bubbles in a region where the pressure of the liquid falls below its vapor pressure. Cavitation can occur in any fluid handling equipment, especially in pumps. Technological advan...ces in industrial protective coatings and repair composite materials have made it possible to repair pumps suffering from cavitation rather than simply replacing them. Cavitation Resistant (CR) elastomers have the ability to retain adhesion under long-term immersion, dissipate energy created under high intensity cavitation and provide resistance to corrosion and other forms of erosion.Read More
Cavitation is defined as the phenomenon of formation and consequent implosion of vapor bubbles in a region where the pressure of the liquid falls below its vapor pressure. Cavitation can occur in any fluid handling equipment, especially in pumps. Technological advan...ces in industrial protective coatings and repair composite materials have made it possible to repair pumps suffering from cavitation rather than simply replacing them. Cavitation Resistant (CR) elastomers have the ability to retain adhesion under long-term immersion, dissipate energy created under high intensity cavitation and provide resistance to corrosion and other forms of erosion.Read More
Source: www.pump-zone.com
One possible solution for pumps suffering from corrosion and other forms of erosion. Cavitation is defined as the phenomenon of formation and consequent implosion of vapor bubbles in a region where the pressure of the liquid falls below its vapor pressure. ...
Pumps & Systems
Positive Displacement Pumps (Part Two): Rotary Pumps
Rotary pumps are positive displacement pumps that use rotational, rather than reciprocating, motion during their pumping cycle. They can be designed to pump liquids, solids, gases or mixtures of all three. Like reciprocating pumps, their capacity per rotation is ind...ependent of driven speed. Unlike reciprocals, however, they develop a dynamic liquid seal and do not require inlet and discharge check valves. Since the rotating element of the pump is directly connected to its driver via a shaft, some sort of drive shaft sealing arrangement is usually required. This is accomplished via a stuffing box, lip seal or a mechanical seal.Read More
Rotary pumps are positive displacement pumps that use rotational, rather than reciprocating, motion during their pumping cycle. They can be designed to pump liquids, solids, gases or mixtures of all three. Like reciprocating pumps, their capacity per rotation is ind...ependent of driven speed. Unlike reciprocals, however, they develop a dynamic liquid seal and do not require inlet and discharge check valves. Since the rotating element of the pump is directly connected to its driver via a shaft, some sort of drive shaft sealing arrangement is usually required. This is accomplished via a stuffing box, lip seal or a mechanical seal.Read More
Source: pump-zone.com
Rotary pumps are positive displacement pumps that use rotational, rather than reciprocating, motion during their pumping cycle. They can be designed to pump liquids, solids, gases or mixtures of all three. ...
Pumps & Systems
Wireless Technology in the Pump Industry
Wireless technology is part of our everyday lives in the home and office. From garage door openers and television remote controls, to cellular telephones and wireless Internet access, radio frequency (RF) technology has been accepted as a reliable, efficient and easy-to-use medium.
Source: pump-zone.com
Comparing traditional wired sensor and pump controller applications with wireless alternatives for engineers, operators and maintenance personnel.
Pumps & Systems Hydraulic Institute Pump FAQs August 2009 - See our answers to three commonly asked pump questions!
Source: www.pump-zone.com
HI Pump FAQs: Radial Thrust, Vertical Pumps and Flow Rate
Pumps & Systems
Effect of Internal Clearances on NPSHR
Terry Henshaw demystifies another aspect of the complicated concept of NPSH.
Source: pump-zone.com
Understanding NPSH
Pumps & Systems What procedures should you use when storing your mechanical seals? Your FAQ's answered here!
Source: www.pump-zone.com
FSA Sealing Sense
Pumps & Systems What is a Safe NPSH Margin for a Centrifugal Pump? Can You Provide Too Much NPSH? READ ARTICLE FOR ANSWERS!
What is a Safe NPSH Margin for a Centrifugal Pump? Can You Provide Too Much NPSH? | Centrifugal Pump
Source: www.pump-zone.com
What is a safe NPSH margin for a centrifugal pump?
Pumps & Systems
The 7,000 ft Challenge for Submersible Pumps
The Springerville Generating Station, Unit 4, in Springerville, Ariz., uses lined ponds to hold water collected from its cooling towers.
Source: www.pump-zone.com
The Springerville Generating Station, Unit 4, in Springerville, Ariz., uses lined ponds to hold water collected from its cooling towers.
Pumps & Systems
Sealless Pumps for Reverse Osmosis Water Treatment: Choosing the right pump-
The sealless principle is appealing because of its design simplicity, low maintenance and operating efficiency.
Source: www.pump-zone.com
Demand for effective water treatment points to reverse osmosis.
Pumps & Systems
Motor and Drive System Resonance Problems and Solutions
The increase in amplitude, whether mechanical or electrical, places more stress on motor and pump components, negatively affects operation (e.g., increased vibration, instability and energy consumption) and leads to premature failure.
Source: www.pump-zone.com
Mechanical resonance occurs when an external source amplifies the vibration level of a mass or structure at its natural frequency. For a rotating mass like a motor or a pump, this occurs at the critical speed(s). Electrical resonance amplifies the magnitude of voltage or current, or both.
Pumps & Systems
Factors to Consider When Selecting an Elastomer for a Butterfly Valve Seat-
Butterfly valves are a very common type of valve found in many applications. They are relatively compact, simple, and easy to maintain, and they come in a multitude of materials.
Source: www.pump-zone.com
Factors to Consider When Selecting an Elastomer for a Butterfly Valve Seat
Pumps & Systems The New API 547 Motor Specification - Many of the centrifugal pumps, fan and compressor applications should fall within its limits.
Source: www.pump-zone.com
How the API 547 specification can impact motor buys and how it relates to the NEMA MG1, Severe Duty and API 541 specifications.
Pumps & Systems
World's Largest Solar Tower Power Plant Begins Operation in Spain-
The new plant is equipped with 1,255 heliostat mirrors developed by Abengoa Solar. The mirrors reflect solar radiation into the receiver, producing steam that is converted into electricity by a steam turbine. The plant will supply clean energy to 10,000 homes.
Source: www.pump-zone.com
Abengoa Solar (Seville, Spain) recently inaugurated its 20-MW PS20 Solar Tower Power Plant at the Solucar Platform near Seville.
Pumps & Systems
Optimizing Your Maintenance Strategy: Actual NPSH Test of a Centrifugal Pump -
NPSHR is a difficult characteristic to measure, and to further complicate matters, pump manufacturers often disagree on the appropriate testing method and acceptance criterion.
Source: www.pump-zone.com
NPSHR Shown as a Single Line as a Function of Capacity Only
Pumps & Systems
U.K. Reveals Potential Sites for 11 New Nuclear Power Plants
The U.K. government has released a list of 11 sites that it has deemed suitable for the building of new nuclear power stations. The decision by the Department of Energy and Climate is a big step toward the U.K.'s plans to have new nuclear reactors up and running by 2018.
Source: www.pump-zone.com
The U.K. government has released a list of 11 sites that it has deemed suitable for the building of new nuclear power stations.
