At the Wahnbach dam approx. 25 km southeast from the German city of Cologne, a pumping station delivers untreated water for the drinking water supply of approx. 800,000 inhabitants in the Bonn, Rhein-Sieg, Ahr region to the nearby treatment plant. The water is extracted in various depths from the approx. 50 meter deep reservoir with a pumping capacity of 1,600 ... 3,200 m³/h. Installed here are Ritz pumps which are sealed with EagleBurgmann Cartex-SN cartridge single seals.
Operating conditions: Pressure: p = 11 bar (160 PSI), rotational speed: n = 1,400 min-1.
A Worthington pump from 1924 in the Littleton Pump Station to the west of London pumps water from the Thames to the Queen Mary Reservoir. After 90 years the seal system of packings was retrofitted to an efficient EagleBurgmann HGH200 split mechanical seal. The seal has been running faultlessly since it was commissioned. The operator of the plant, Thames Water, thus achieved significantly improved maintainability and availability of the pump station.
Medium: River water, outlet pressure: p = 1.2 barg (17.4 PSIG), rotational speed: n = 140 min-1.
The drinking water pump station in the Dutch town of Manderveen deploys vertical type CFU centrifugal pumps from Johnson Pumps. They have been reliably delivering over 3.6 million cubic meters of drinking water in continuous operation since 2013. The pumps are sealed with EagleBurgmann M7N mechanical seals with drinking water approved materials. Further operating data: Temperature: t = 15 °C (59 °F), pressure: p = 6 barg (87 PSIG), rotational speed: n = 1,450 min-1.
An extensive major project for water procurement and supply of the South European country of Montenegro was realized by Xylem Austria, Lowara Vogel. The untreated water is first delivered from the Bolje Sestre water extraction station by four vertical Vogel volute casing pumps to the treatment plant and then on to the Reljici pumping station (photo) located 30 km away. Here the drinking water is pumped by six Vogel multistage pumps to the high-level tank located 6 km away. From there it supplies the northern coastal area (73 km towards Croatia) as well as the southern coastal area (34 km towards Albania). All pumps are equipped with EagleBurgmann types M74 and H74 mechanical seals.
In the Indian State of Karnataka, the major project "Tunga Lift Irrigation Scheme" pumps water over great distances for agricultural irrigation in the northern regions. The water is taken from the river Tunga near the city of Shimoga. Several Andritz high performance pumps have been installed for that. Pumping capacity: 375 … 500 l/s. To seal the shafts with a diameter of 420 mm (16.54"), EagleBurgmann HGH300S1 are installed.
Further operating conditions: Temperature: t = +5 °C … +35 °C (+41 °F … +95 °F), pressure: p = vacuum … 10 bar (145 PSI).
The pumping station Morsesstraat in The Hague is one of the biggest of its kind in the Netherlands. It is run by Deichverband Hoogheemraadschap van Delfland. Along with 14 other facilities, it extracts wastewater from households in The Hague and transfers it into the sewage treatment plants of Delfland. A number of Nijhuis HM Fr1-80.70 pumps are in operation here. Every pump has a capacity of 5,650 m³/h, and operates with a pressure of 1.4 bar (20 PSI). They are successfully sealed with Cartex-DN double seals, which are supplied by an EagleBurgmann QFT2000.
The Gut Großlappen purification plant is one of two sewage treatment plants which cleans the household and industrial wastewater of the German city of Munich. The pipe systems of the treatment plant are reliably sealed with EagleBurgmann Burasil universal fibrous material gaskets. The seal consists of high-grade aramid fibers and special functional fillers with NBR rubber.
Installed in the central sewage treatment plan of the Polish city of Poznan are 12 Netzsch NEMO eccentric screw pumps of the type NM125 for the recirculation of sewage sludge - two machines each per digestion tower. They are reliably sealed with rugged EagleBurgmann MG1. The pumps have been running faultlessly to the satisfaction of the end user for nearly 20 years.
Operating conditions: Temperature: 36 °C (97 °F), delivery rate: 80 m³/h, rotational speed: 130 min-1.
Dewatered sewage sludge (dry residue content up to 36 %) with admixtures of caustic lime is pumped by a Seepex hopper pump BTI 17-24. The demanding application is sealed with EagleBurgmann Cartex-QN in cartridge design.
Further operating conditions: Temperature: t = 20 °C (68 °F), pressure: p = 12 bar (174 PSI), delivery rate: 1 … 4 m³/h.
Draining the 2,000 m high plateau where Mexico City is located is problematic due to the extraordinary geographical situation. Frequently occurring heavy rainfall causes entire districts to be flooded. As a result, the National Water Commission – Conagua – realized a mega project to dispose of the surface water in the municipal area. The La Caldera pump station forms the core of this project. It has a capacity of 40 m³/s. The water is collected here and conveyed out of the municipal area. The pump station was equipped by KSB, with 24 pumps of the type KRT, among others. They are sealed with EagleBurgmann MG1 elastomer bellows seals in various hard/hard and hard/soft material combinations.