Construction Industry and Industry

Generated by the construction boom in the 60th of last century the company HÜDIG develops and manufactures pump-units mainly for the construction industry. HÜDIG could transfer valuable, long-standing experience out of this into other commercial sectors and could develop special pumps, pump units, generator sets and necessary accessories for different applications. Our strength lies in this diversity.

HÜDIG-Vacuum-Units are in service by satisfied customers all over the world. The power-saving technique is completed by the use of robust plant components. So for example sewage pumps are used as discharge pumps.

HÜDIG-Dewatering Technology-Product Groups

Electrical Vacuum Pump Units

HÜDIG Electrical Vacuum Pump Units convince through perfected technology and have been proven thousandfold all over the world. The units are designed in the minutest detail and according to a modular system. Beside a high operation safety and very good performance characteristics a low maintenance is required by the construction practice. The results of these demands are our new series HC 467 resp. HC 468 as well as HC 487 resp. HC 488.

HC 467

Head Capacity Weight Connection
21-46 m 60-140 m³/h 457-479 kg 108-159 mm
Technical data
Power input kW 2,0-3,5
Maximum power input kW 4,9-8,8
Power consumption A 400 V 17,6
Technical data sheet
HC467_00_e.pdf (143.6 KiB)

HC 468

Head Capacity Weight Connection
21-46 m 60-140 m³/h 493-515 kg 108-159 mm
Technical data
Power input kW 3-3,8
Maximum power input kW 5,7-9,6
Power consumption A 400 V 17,6
Technical data sheet
HC468_00_e.pdf (143.6 KiB)

HC 487

Head Capacity Weight Connection
21-46 m 152-280 m³/h 631-645 kg 108-159 mm
Technical data
Power input kW 4,4-6,2
Maximum power input kW 11-15,4
Power consumption A 400 V max. 30
Technical data sheet
HC487_00_e.pdf (126.5 KiB)

HC 488

Head Capacity Weight Connection
21-46 m 152-280 m³/h 712-732 kg 108-159 mm
Technical data
Power input kW 4,7-6,5
Maximum power input kW 11,8-16,2
Power consumption A 400 V max. 30

Air Separation Chamber

The Hüdig air separation chambers are serially hot galvanized and therefore they provide long-term protection against corrosion. High air separation chamber capacities ensure a low switch frequency of the water resp. the vacuum pumps.

Out of it a better efficiency and a longer service life of the whole unit results.

Switch Board

The water resp. vacuum pumps are switched on and off through an electrode system. This kind of control system has against a cycled floating system control system the advantage of being insensitive to long-term.
The used electrical components are commercially available components. Therefore a quick spare parts supply is ensured in case of emergency. A so-called phase protective relay ensures that the electric motors are always operated in the correct direction of rotation.

Water Pumps

If a filter casing is broken or open dewatering was practised, this is not a problem for HÜDIG electrical vacuum units.
Through the use of GRINDEX submersible pumps a premature failure caused by conveying sanded water will be counteracted. An absolute advantage!

Vacuum Pumps

In HÜDIG electrical vacuum units of the series HC 467/ ... and HC 487/ ... rotary vacuum pumps are used with circulation lubrication. They convince with large air output even at high vacuum. These pumps operate at frost, as well as in tropical temperatures faultlessly. Damages by frost or lack of cooling water are not possible. Even the annoying daily operating water control does not apply to oil-lubricated pumps. If a vacuum pump is required with oil-and water-free lubrication, so even this is possible through the use of HÜDIG-vacuum pump. On the HÜDIG vacuum pump units of the series HC 468/ ... and HC 488/ ... oil-and water-free air pumps are installed. The noise emission level for these vacuum pumps in 7 m distance is maximum of 52 dB (A).

Diesel Vacuum Pump Units

The professionals know the function of this aggregate of the almost legendary HÜDIG vacuum aggregates of the series HC 550. Concerning the performance parameters the HC aggregate 522 is for conveying of smaller quantities of groundwater. Compared with classical displacement pumps, as piston or diaphragm pumps, this aggregate is insensitive to convey sandy groundwater. Through the use of an additional vacuum generator a reliable conveying is taking place also when having larger air volume. Based on the use of vacuum dewatering there often exist high air volumes due to air pockets. Additionally the vacuum generator produces in total a higher vacuum compared to piston pumps. Based on this the ground water could be pumped from deeper horizons.

HC 522/06+07

Head Capacity Weight Connection
21 m 105 m³/h 994-1230 kg 108 mm
Technical data
Power input kW 8,4
Technical data sheet
HC522_06_e.pdf (104.8 KiB)

Base Frame

The aggregate is mounted as standard on a galvanized tank-skid base-frame suitable for a 24 h operation. If requested the unit can be supplied with a 3-days fuel-tank. In this version the engine has a larger oil pan and therefore the "next" maintenance interval can confidently take place after the weekend. There is also the option to equip the aggregate with an additional oil pan. With it the aggregate has a double-walled tank and is protected against accidental fuel and oil spillage. The transport can take place through the crane lifting lug or the forklift slots. The noise protected version of the aggregate has a solid galvanized frame. This provides a good mechanical protection against any damage during transport of the aggregate. The doors afford broad access to the controls and ensure a certain level of comfort during maintenance.

Air Separation Chamber

The air separation chamber consists as standard out of galvanized sheet steel and is therefore optimally protected against corrosion.

 

 

Engine

Motor

As power source an air-cooled diesel engine of European production is used. 

Water Pump

When a filter casing is accidently broken or open dewatering will be practised, this is not a problem for HÜDIG electrical vacuum aggregates.
Through the use of self-priming waste water pumps a premature failure caused by conveying sanded water will be counteracted. An absolute advantage!

Vacuum Generator

In HÜDIG diesel vacuum aggregates dry running rotary vacuum generators are used. They convince with large air capacity even at high vacuum. These pumps are robust and operate at frost, as well as in tropical temperatures faultlessly. Damages by frost or lack of cooling water are not possible. Even the annoying daily control of operating water as well as the oil change intervals does not apply to oil free vacuum generators. 

HC 532

Head Capacity Weight Connection
21 m 270 m³/h 1025 kg (1091 kg) 108 mm
Technical data
Power input kW 15-18,1
Technical data sheet
HC532_XX_e.pdf (155.6 KiB)

Base Frame

The aggregate is mounted as standard on a galvanized tank-skid base-frame suitable for a 24 h operation. If requested the unit can be supplied with a 3-days fuel-tank. In this version the engine has a larger oil pan and therefore the "next" maintenance interval can confidently take place after the weekend. There is also the option to equip the aggregate with an additional oil pan. With it the aggregate has a double-walled tank and is protected against accidental fuel and oil spillage. The transport can take place through the crane lifting lug or the forklift slots. The noise protected version of the aggregate has a solid galvanized frame. This provides a good mechanical protection against any damage during transport of the aggregate. The doors afford broad access to the controls and ensure a certain level of comfort during maintenance.

Air Separation Chamber

The air separation chamber consists as standard out of galvanized sheet steel and is therefore optimally protected against corrosion.

 

 

Engine

Motor

As power source an air-cooled diesel engine of European production is used. 

 

Water Pump

When a filter casing is accidently broken or open dewatering will be practised, this is not a problem for HÜDIG electrical vacuum aggregates.
Through the use of self-priming waste water pumps a premature failure caused by conveying sanded water will be counteracted. An absolute advantage!

Vacuum Generator

In HÜDIG diesel vacuum aggregates dry running rotary vacuum generators are used. They convince with large air capacity even at high vacuum. These pumps are robust and operate at frost, as well as in tropical temperatures faultlessly. Damages by frost or lack of cooling water are not possible. Even the annoying daily control of operating water as well as the oil change intervals does not apply to oil free vacuum generators. 

HC 551/02

Head Capacity Weight Connection
21 m 330 m³/h 1476 kg 159 mm
Technical data
Power input kW 19,3
Technical data sheet
HC551_02_e.pdf (156.2 KiB)

Base Frame

In standard the unit is mounted on a galvanized fuel-tank-chassis (for on-site traffic only). The volume of the fuel-tank is dimensioned for a 24 hour service in full load. On request the units could be mounted on a chassis according traffic-regulations up to 80 km/h and they are also available in a noise-protected canopy version. 

Air Separation Chamber

The air separation chamber consists as standard out of galvanized sheet steel and is therefore optimally protected against corrosion. The separated volume has been dimensioned generously. Therefore the secured separation of the charged air-/water mixture is assured. The huge demountable cover provides the advantage of a service-friendly access to the swimmer-system and the possibility of easy cleaning.  

Engine

For powering the units air- or water-coolant Diesel-engines of nameable European manufacturers will be used. 

Water Pump

For the conveyance of salty- or brackish water with the normally used pumps equipped with impellers made from grey cast iron only the durability of them are limited. HÜDIG is using in the unit-types HC 532/551 impellers made out of bronze alloy. With this and with the use of sacrificial zinc-anodes the pumps are extensively resistant against corrosion caused by the conveyance of salty water.  

Laufrad

Vacuum Generator

In HÜDIG diesel vacuum units dry running rotary vacuum generators are used. They convince with large air capacity even at high vacuum. These pumps are robust and operate at frost, as well as in tropical temperatures faultlessly. Damages by frost or lack of cooling water are not possible. Even the annoying daily control of operating water as well as the oil change intervals does not apply to oil free vacuum generators.

In certain cases we suggest the use of oil-lubricated vacuum generators. Alternatively they are available. 

HC 552/00+03

Head Capacity Weight Connection
22 m 310 m³/h 1131 kg 159 mm
Technical data
Power input kW 25

Base Frame

In standard the unit is mounted on a galvanized fuel-tank-chassis (for on-site traffic only). The volume of the fuel-tank is dimensioned for a 24 hour service in full load. On request the units could be mounted on a chassis according traffic-regulations up to 80 km/h and they are also available in a noise-protected canopy version. 

Air Separation Chamber

The air separation chamber consists as standard out of galvanized sheet steel and is therefore optimally protected against corrosion. The separated volume has been dimensioned generously. Therefore the secured separation of the charged air-/water mixture is assured. The huge demountable cover provides the advantage of a service-friendly access to the swimmer-system and the possibility of easy cleaning.  

Engine

For powering the units air- or water-coolant Diesel-engines of nameable European manufacturers will be used. 

Water Pump

For the conveyance of salty- or brackish water with the normally used pumps equipped with impellers made from grey cast iron only the durability of them are limited. HÜDIG is using in the unit-types HC 532/551 impellers made out of bronze alloy. With this and with the use of sacrificial zinc-anodes the pumps are extensively resistant against corrosion caused by the conveyance of salty water.  

Laufrad

Vacuum Generator

In HÜDIG diesel vacuum units dry running rotary vacuum generators are used. They convince with large air capacity even at high vacuum. These pumps are robust and operate at frost, as well as in tropical temperatures faultlessly. Damages by frost or lack of cooling water are not possible. Even the annoying daily control of operating water as well as the oil change intervals does not apply to oil free vacuum generators.

In certain cases we suggest the use of oil-lubricated vacuum generators. Alternatively they are available. 

Piston Pumps

In the application for dewatering the piston pump was used for many years as a reliable pump unit. In the 70th of the last century, the piston pump was increasingly replaced by modern vacuum units. Demanded greater efficiency in capacity was essentially the reason for this. The vacuum of piston pumps is in practice limited to a suction lift of 7 m water column and also the real flow rate does not exceed the 70 m³ / h per unit (air performance, water performance or a mixture of both). Of course, several units can increase the total capacity, but this is associated with a higher use of equipment and therefore more costly. Demands are made to the quality of conveyed groundwater. Sandy water leads to premature erosion and can cause premature failure of the unit and therewith unforeseeable consequential damages. Nevertheless, there are niches for the application of piston pumps. These could be found, for example in the so-called line construction site (pipeline construction).

The HC 271 is designed for heavy duty use on construction sites. An outer galvanized steel frame with integrated pan provides a very good protection against mechanical damage from outside and also a spilling protection of liquids. The aggregates are stackable and the solid supporting construction provides secure acceptance of the load hook. The engine with the large oil pan in combination with the properly sized fuel tank enables a 24/7 operation at full load. The piston pump has an automatic lubrication. Long service life can be achieved by over-sized bearings and low piston speed. The piston pump has a built in air chamber. Due to this pressure compensation the hoses will be prevented from damage during long distance, for example. The pulsation of the hoses is practically suppressed.

HC 271

Capacity Weight Connection
70 m³/h 1620 kg 108 mm
Technical data
Power input kW 6,0
Technical data sheet
HC271_11_e.pdf (304.0 KiB)
Jetting pumps

HÜDIG high-pressure centrifugal pumps are multistage non-self-priming centrifugal pumps, suitable for conveying clean or slightly contaminated water without solid particles. It is driven by a diesel engine. The pumps will be de-aerated manually.

HC 170

Pressure performance Capacity Weight Connection
14,5 bar 43,5 m³/h 420 kg 108 V intake flow
Technical data
Power input kW 19,2
Technical data sheet
HC170_05_e.pdf (304.6 KiB)

HC 180

Pressure performance Capacity Weight Connection
16,3 bar 60 m³/h 645 kg 108 V intake flow
Technical data
Power input kW 32,5
Technical data sheet
HC180_05_e.pdf (129.2 KiB)

Application

Construction industry – industry – communities

  1. to jet in wellpoints, wells or piles
  2. for water supply at construction sides
  3. to fill and test pipe lines
  4. to clean construction vehicles and equipment
  5. for fire fighting

Structure

The pump aggregates (except for type HC 160) are mounted on a pneumatic-tired single-axial chassis and therewith portable (6 km / h). The removable truck drawbar, the battery box and the crane eye are standard.

A solid welded tank frame chassis made out of steel with extra-large fuel capacity characterizes the HC 180/05 unit.