Menu

Flowrox Newsroom


20 big Flowrox valves performing well in flow control duty

Release date 10/19/2011

Flowrox pinch valves PV 500 E01 have operated successfully controlling flow in Polish waste water plant since the installation. Twenty (20) electrically actuated valves were delivered to Poland through Danish engineering company Krüger A/S and Flowrox representative Scanrox A/S.

Krüger A/S is building one of Europe’s biggest waste water treatment plants Czajka in Warsaw, Poland. The capacity of the plant equals to the waste water of 2 million people. The plant area is the size of 74 football fields, being about 1,2 km wide and 800 m long. At the moment a third of the plant is running, and on the remaining two thirds the final installations are under construction.

After the six (6) pre-settling tanks there are ten (10) aeration pools. The main biological process takes place in these seven (7) meter deep pools that have a volume of 37225 m3 each. Electrically driven mixers rotate slowly (2 rps) in the pools handling the medium as gently as possible but keeping the waste moving all the time. After the pools the water is pumped to the secondary settling tanks. From the surface of the settling tanks the clean water is lead to a river. From the bottom of the settling tank a constant flow of biological sludge is flowing out by gravity to collection chambers through DN700 stainless pipes. Just before the chambers the pipes are coned down to DN500 to fit the valves. The PV 500 EO1 valves are controlling the sludge flow. From the collection chambers the medium is pumped gently back to the starting point of the process as the mass contains the cleaning bacteria. The flow is as slow as possible so that the medium is not mixed or treated violently in any other way. 

The end customer as well as the engineering company have been very satisfied with the operation of Flowrox valves.

Back to listing

Press contact

Tuija Tiilikainen
e-mail: tuija.tiilikainen(a)flowrox.com
mobile: +358 (0)45 878 3528





This website stores cookies on your computer. These cookies are used to improve our website and provide more personalised services to you.
Close

Cookies

To make this site work properly, we sometimes place small data files called cookies on your device. Most big websites do this too.

1. What are cookies?

A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.

2. How do we use cookies?

A number of our pages use cookies to remember your actions and preferences (such as login, language, font size and other display preferences.)

Also, some videos embedded in our pages use a cookie to anonymously gather statistics on how you got there and what videos you visited.

Enabling these cookies is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended.

The cookie-related information is not used to identify you personally and the pattern data is fully under our control. These cookies are not used for any purpose other than those described here.

3. How to control cookies

You can control and/or delete cookies as you wish – for details, see aboutcookies.org. You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.

Close