We have been operating for over 40 years with wellpoints and soil drainage, assisting designers and entrepreneurs in particular. Our experience and professionalism allow us to support you with the different drainage technologies – first of all the wellpoint technique –, and to intervene by solving the problems due to the presence of water on site.
WE ARE EXPERIENCE, PROFESSIONALITY AND INNOVATION
SUMP PUMPING / DIRECT SUCTION
It consists of direct suction within the area to be drained with immersion or surface pumps (electric or diesel)
WELLPOINT INSTALLATIONS
The system consists of a series of microwells (wellpoints), installed in the area of land where the groundwater must be lowered
WELLS
They behave like macro wellpoints inside of which specific submersible or submersible pumps are installed to allow the extraction of large quantities of water
DRAIN PIPE
A series of drainage pipes placed under or around the desired excavation area are connected to a high vacuum pump
WELLPOINT EDUCTOR / EJECTOR
Its principle is similar to the one of the wellpoint system, but in this case there is a high head pump that pushes water into the ejectors
SUMP PUMPING / DIRECT SUCTION
It consists of direct suction within the area to be drained with immersion or surface pumps (electric or diesel)
WELLPOINT INSTALLATIONS
The system consists of a series of microwells (wellpoints), installed in the area of land where the groundwater must be lowered
WELLS
They behave like macro wellpoints inside of which specific submersible or submersible pumps are installed to allow the extraction of large quantities of water
DRAIN PIPE
A series of drainage pipes placed under or around the desired excavation area are connected to a high vacuum pump
WELLPOINT EDUCTOR / EJECTOR
Its principle is similar to the one of the wellpoint system, but in this case there is a high head pump that pushes water into the ejectors
FREE DRAINING / DIRECT SUCTION
It consists of direct suction within the area to be drained with immersion or surface pumps (electric or diesel)
WELLPOINT INSTALLATIONS
The system consists of a series of microwells (wellpoints), installed in the area of land where the groundwater must be lowered
WELLS
They behave like macro wellpoints inside of which specific submersible or submersible pumps are installed to allow the extraction of large quantities of water
DRAIN PIPE
A series of drainage pipes placed under or around the desired excavation area are connected to a high vacuum pump
WELLPOINT EDUCTOR / EJECTOR
Its principle is similar to the one of the wellpoint system, but in this case there is a high head pump that pushes water into the ejectors
FREE DRAINING / DIRECT SUCTION
It consists of direct suction within the area to be drained with immersion or surface pumps (electric or diesel)
WELLPOINT INSTALLATIONS
The system consists of a series of microwells (wellpoints), installed in the area of land where the groundwater must be lowered
WELLS
They behave like macro wellpoints inside of which specific submersible or submersible pumps are installed to allow the extraction of large quantities of water
DRAIN PIPE
A series of drainage pipes placed under or around the desired excavation area are connected to a high vacuum pump
WELLPOINT EDUCTOR / EJECTOR
Its principle is similar to the one of the wellpoint system, but in this case there is a high head pump that pushes water into the ejectors
WHAT WE DO
RENTAL
We offer rental services for motor pumps, electric pumps, gensets of different powers and types. We supply both turnkey systems with supervision of single parts to allow our customers maximum flexibility.
ADVICING
We offer specialized construction site consultancy, estimates and sizing based on the most modern techniques; and specifications of dewatering for the resolution of groundwater problems.
SERVICE
We provide on-site maintenance services to allow the pumps to function perfectly and minimize the risk of machine downtime. We are also able to carry out maintenance on your own pumps, regardless of the brands.
MANAGEMENT
For our customers, the drainage system must be a service, not a problem. For this reason, in highly sensitive situations we are able to supervise the systems 24/7.
SITE ANALYSIS
Driving tests, pumping tests, hydraulic compatibility analysis, driving tests: this is very useful in order to choose the correct drainage system and to accurately quantify the response of the aquifer system before proceeding with excavations.
INSTALLATIONS
We are able to offer wellpoint systems, drainage wells, drainage pipes, free-flowing draining pumps, wellpoint with ejector, wellpoint eductor and all the accessories built to our specifications.
WE HAVE NO FEAR OF THE MUD |
4736
CONSTRUCTION SITES COMPLETED
2813
CUSTOMERS
250
RENTAL PUMPS
43
YEARS OF BUSINESS
THE CHOICE OF A SPECIFIC DEWATERING SYSTEM IS STICTLY RELATED TO THE TYPE OF SOIL
DEWATERING SYSTEMS
The purpose of the dewatering systems is to allow to work in a dry ground but where there is still the groundwater . The approach adopted (free draining, wellpoints, wells …) is related to the type of soil, the depth of the excavation and the amount of water to be extracted. The solution to the problem of water in the excavation must always be sought, in autonomy with the customer, respecting the client’s needs.
CLAY
VERY LOW PERMEABILITY 0,002 < diameter mm <0,005 1×10-7< permeability K m/sec = < 1×10-9 we have to use a wellpoint system (with filters and pre-filters)
SILT
LOW PERMEABILITY 0,05< diameter mm <0,005 1×10-3< permeability K m/sec = < 1×10-7 we can use a wellpoint system (with filters and pre-filters)
SAND
MEDIUM PERMEABILITY 2,0< diameter mm <0,05 1×10-1< permeability K m/sec = < 1×10-3 we can use a wellpoint system (with filter or probes) or else wells
GRAVEL
HIGH PERMEABILITY 20,0< diameter mm <2,0 1×10-2< permeability K m/sec = < 1×10 we can use a wellpoint system (with probes) or wells
PROUD OF OUR WORKS
NEW RESIDENTIAL COMPLEX IN MILAN |
Creation of the underground floors of a new residential building located in Milan.
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RECOVERY MOLE AND LAYING SEWER PIPE ACROSS THE RIVER |
Laying of sewer pipes across a river Details |
PETROCHEMICAL RECLAMATION WITH WELLPOINT EDUCTOR SYSTEM |
Surface groundwater reclamation of a petrochemical site through wellpoint with ejector technology
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LAYING A SEWER PIPE ACROSS THE RIVER |
Laying of a sewer connection below the bed of an emissary of a lake
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NUOVO COMPLESSO RESIDENZIALE A MILANO
Creazione dei pianti interrati di una nuova palazzina residenziale sita in Milano.
RECUPERO TALPA E POSA CONDOTTA FOGNARIA ATTRAVERSO FIUME
BONIFICA PETROLCHIMICO CON IMPIANTO WELLPOINT EDUCTOR
Bonifica falda superficiale sito petrolchimico tramite wellpoint con tecnologia ad eiettore
POSA CONDOTTA FOGNARIA ATTRAVERSO FIUME
Posa di un collegamento fognario al di sotto dell’alveo di un emissario di un lago
Crewell POMPE E SERVICE is a new section following the market demand for revision and maintenance of both motor and electric pumps of the main brands already owned by our customers.
Our equipped workshop enables us – with extreme professionalism and capability – to overhaul and repair electric or diesel motors, impellers, seals, depressors and pump bodies of the main brands and types (Varisco, ITT, Viesse, Uniservice etc.), even of discontinued models.
