Reciprocating Pumps

Power pump NPSH tests are performed by holding pump speed and discharge pressure constant and varying the NPSH available in the system.
When choosing the proper pump for an industrial application, the word harsh has two meanings.
Air-operated double-diaphragm pumps gain energy efficiency and reduce maintenance costs with innovative technology.
Topics of discussion include rotodynamic pumps, reciprocating pumps and pump displacement.
Is there a way of predicting the maximum operating speed for a reciprocating plunger pump when pumping a viscous liquid?
The preferred method for starting reciprocating pumps; Critical speed for pumps; Timing gears on rotary pumps
HI answers your frequently asked questions.
Q. What can be done to avoid the high-pressure differential from rupturing the diaphragm in reciprocating diaphragm pumps?
Hi answers your frequently asked questions.
What is an acceptable amount of residual unbalance in an impeller after it has been balanced?
HI answers your frequently asked questions.
From aquariums to acids, amines to ammonia, atomic particle accelerators to xylene, magnetic process pumps can be found in extreme conditions.
Rising and falling pressure, as well as the need to manually recalibrate metering pumps to ensure dosing rates are maintained at constant levels and specific set points, is time consuming for operators handling fluctuating system pressures.
A metering pump is a positive displacement pump capable of pumping liquids at adjustable and precise flow rates. The word metering refers to the delivery of fluids at precisely controlled flow rates.
Digital dosing pumps can receive an analog signal from an analyzer, PLC or similar instrument, and in the event of a significant change in the total system requirements for the chemical being dosed, reprogramming the internal software can change the maximum volume the pump can deliver.
In this issue, we will focus on Module 4, reciprocating pumps. For the reciprocating pump family, this article will provide an overview of their characteristics, types, application analysis and pump selection process.
Matching the right liquid end to the right drive mechanism is how this class of pumps provides operators with precise delivery of liquids.
Many pump designs fall into the positive displacement (PD) category, but, for the most part, they can be divided into two basic groups.
The Hydra-Cell T8030 is a sealless, triplex diaphragm pump that reduces maintenance and downtime by eliminating packing, has zero leakage of production fluid, has the ability to pump abrasives and can run dry without damage.
AirVantage Energy Saving Technology is used on air operated double diaphragm pumps (AODD), which are industrial pumps that employ the use of a twin diaphragm system for positive displacement to move liquids.
The correct selection can help keep costs down.
Many times, you may be faced with the decision to use a reciprocating pump or a multi-stage centrifugal pump for a given application.
The AODD pump has evolved to uniquely solve complex fluid transfer needs in this industry.
It is common practice for the designer of a new centrifugal pump to model the new pump from an existing pump. Each dimension of the existing pump (except the shaft diameter) is multiplied by a modeling factor "F" to obtain each dimension of the new pump.

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