- All
- Expert
- History
Not everything is easy to measure on site - that is, about the possibilities of assessing pump parameters at the workplace.
It is advisable to constantly monitor or at least periodically check the energy parameters of the pumps. In practice, at the workplace, measuring lifting height, power and specific weight is relatively simple and possible to carry out...
Current status and prospects for the development of pump designs at ZFMG POWEN.
The article discusses the design and parameters of pumps currently manufactured at ZFMG POWEN, intended primarily for the domestic coal mining industry. Particular attention was paid to multistage centrifugal pumps used in main…
Energy savings as a result of modernization of water supply pumping stations.
Summary The article presents conclusions from 36 energy audits of pumping systems. The most important causes of energy losses and potential savings that can be achieved as a result of the proposed modernizations are presented. Examples of analyzed…
Comments on the selection of pumps for drainage pumping stations.
Introduction. Correct design of a drainage pumping station requires a combination of knowledge from several fields. In addition to knowledge of land improvement and hydrology, knowledge of hydrotechnical construction, power engineering, automation, as well as technology...
Pumps tailored to your installation – part 2
In the first part of the article it was stated that in many cases there is a need to correct pump parameters in order to better adapt them to the requirements of the pumping system. In this regard, the following are the most commonly used…
Pumps tailored to your installation – part 1
It is a well-known fact that each pump operating at a constant rotational speed achieves the parameters resulting from its characteristics, i.e. with a specific capacity, it produces a specific lifting height and achieves a specific efficiency,…
Renovations of mining machines - economic and non-economic aspects.
The Polish hard coal mining industry is in a difficult economic situation. In order to avoid losses, the management boards of mining companies are looking for ways to reduce operating costs. In this respect, the costs of machine renovations constitute a significant item…
"Twardowski wouldn't recognize his factory" - Franciszek Sitek
The penultimate year of the occupation. Life in Warsaw is getting harder. More and more friends were sent to work in Germany. I managed to protect myself by taking a job in the pump factory of engineer Twardowski. The year 1943. I joined...
A systemic solution to the problem of pumps for removing the effects of flooding.
The experience of the last dozen or so years shows that the risk of flooding in our country is constant, and that subsequent floods on a local scale occur every year, and every few years...
"From Lenino to Berlin" - Arseniusz Szewtsov
Arseniusz Shevtsov - a native of Volhynia - captured Prague, which later became his district. After demobilization, he lived in Praga. He started working in Praga - at Twardowski's on Grochowska Street - because...
Basic principles of selection and operation of pumps in hydrotransport installations.
1. Introduction. Hydraulic transport of solids in pipelines is used in many industries and economies (e.g. mining, energy, mineral resources industry, food industry, chemistry, environmental protection) [1]. NO…
"I was at Anders's" - Stanisław Wolski
Before the war, I was a civilian driver in the Border Protection Corps in Volhynia. I was mobilized on September 1, 1939 and took part in the fights against the Nazis. After the end of the September campaign, I was interned...
"I fought for a free Poland" - Józef Pietrzak
The year 1918. Emperor Wilhelm II escapes to the Netherlands. German troops are withdrawing from the fronts. Soldiers' Councils are established. Changes are felt in Greater Poland. Poles are now allowed to organize. You are allowed to hold rallies…
Wafapomp SA feed pumps – Achievements and development.
Entry. In the pre-war years and immediately after the war, only foreign-made pumps were used in Polish power plants to power steam boilers. The largest, until 1939, Polish power plant in Łaziska with…
Modernization of propeller pumps. Big pumps – serious tasks.
Entry. The article shows, on the example of one contract, how much the customer's requirements for pump manufacturers have changed in a relatively short time and what technical, organizational and logistical problems this creates...
"I survived Auschwitz" - Bronisław Perkowski
I started working for Twardowski in 1923. I learned how to work on a lathe three years earlier from Master Sokorski. At that time, the workshop equipment was modest: six medium-sized lathes,…
