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    Vacuum insulators (ceramic break) consist of special ceramics which, thanks to their extreme mechanical strength and negligible electrical conductivity, offer a ready protection against voltage surges. LAPP Insulators Alumina produces such insulators from aluminium oxide, which is capable of maintaining its insulation strength even under the toughest conditions and voltage peaks. The entire design from the initial concept through to the final manufacturing process is carried out against the backdrop of your specific requirements and concepts. Our 

 

development engineers work closely to your operating conditions and application in designing the component’s size, surface area and construction. As creepage paths and clearances critically influence the insulating properties of the ceramic isolation components, we pay particular attention to maximising creepage current stability. Here the ideal properties of ceramics in such composite assemblies are vividly demonstrated. The use of aluminium oxide also strongly influences the mechanical strength of the component. Our high quality precision vacuum insulation tubes have already won over numerous customers with exacting application concepts.

 

    Together with our customers, we have been using the FEM method in the development of vacuum insulation tubes since 2013 to provide concrete and reliable forecasts on the behaviour of  planned components. Key issues include the interaction of the individual components as a composite, the stress profile or the technical characteristics of the ceramic. The material data enables detailed design of prototypes, saving on multiple test series. Particularly for our vacuum insulators, this means reduced development times and cost savings; and overall a reduced time-to-market for your new product. Our corporate research and development centre,” LIKE,” has a wealth of know-how and technical expertise, available for us to draw on in the design of your particular component. That’s why globally, LAPP Insulators Alumina is among the leading manufacturers of high-end, certified vacuum insulators for extreme conditions.

        

    LAPP Insulators Alumina offers a standard program of vacuum insulators (ceramic break). These are available in three variants, featuring a weldable adapter in a Nickel Iron alloy, or with a stainless steel flange in ISO format (KF small flange) or Conflat (CF flange) designs. Parts with non-standard lengths and diameters not listed can be quoted on enquiry. Any standard program vacuum insulator can be supplied within three weeks and in quantities from one unit upwards.

 

Insulators

402140CF (40kV) - 100CF Flange

Special offer

Insulator 4021 - 40kV, ConFlat 

Voltage DC:                       >40kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%, glazed

Magnetic materials:        Yes

Temperature Range:      -50°C to 450°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4021.40W 86 96 90 84 152,4 139,3 - 40kV
 

Your price: €1,600.23

400230KF (30kV)

Insulator 4002 - 30kV, ISO KF

Voltage DC:                       >30kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Flange:                              Stainless steel 1.4301, NW40KF

Magnetic materials:        Yes

Temperature Range:      -25°C to 200°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4002.30KF 23 36 38 23 55 71 NW40KF 30kV
 

 

Your price: €444.60

400905KF (5kV)

Insulator 4009 - 5kV, ISO KF

Voltage DC:                       >5kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Flange:                              Stainless steel 1.4301, NW40KF

Magnetic materials:        Yes

Temperature Range:      -25°C to 200°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4009.05CF 32 41 4 32 55 56 NW40KF 5kV

 

Your price: €267.41

400965KF (65kV)

Insulator 4009 - 65kV, ISO KF

Voltage DC:                       >65kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Flange:                              Stainless steel 1.4301, NW40KF

Magnetic materials:        Yes

Temperature Range:      -25°C to 200°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4009.65KF 32 41 99 32 55 151 NW40KF 65kV

 

Your price: €417.63

400230KF (30kV)

Insulator 4002 - 30kV, Weldable

Voltage DC:                       >30kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Magnetic materials:        Yes

Temperature Range:      -50°C to 450°C

 

Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4002.30W 23 36 38 23 36 66 - 30kV
 

 

Your price: €289.90

400965W (65kV)

Insulator 4009 - 65kV, Weldable

Voltage DC:                       >65kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Magnetic materials:        Yes

Temperature Range:      -50°C to 450°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4009.65W 32 41 99 32 41 145 - 65kV

 

Your price: €302.02

400905W (5kV)

Insulator 4009 - 5kV, Weldable

Voltage DC:                       >5kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Magnetic materials:        Yes

Temperature Range:      -50°C to 450°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4009.05W 32 41 4 32 41 50 - 5kV

 

Your price: €146.17

401020W (20kV)

Insulator 4010 - 20kV, Weldable

Voltage DC:                       >20kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Magnetic materials:        Yes

Temperature Range:      -50°C to 450°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4010.20W 64 84 23 64 84 95 - 20kV

 

Your price: €1,064.92

401060W (60kV)

Insulator 4010 - 60kV, Weldable

Voltage DC:                       >60kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Magnetic materials:        Yes

Temperature Range:      -50°C to 450°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4010.60W 64 84 93 64 84 165 - 60kV

 

Your price: €1,270.98

400560W (60kV)

Insulator 4005 - 60kV, Weldable

Voltage DC:                       >60kV

Tube:                                  Kovar

Insulator:                           Alumina ceramics (Al2O3), min. 96%

Magnetic materials:        Yes

Temperature Range:      -50°C to 450°C

 
Number Ceramics Insulator sign. Voltage DC (kV)
ID OD h ID OD H
4005.60W 102 122 93 102 122 165 - 60kV

 

Your price: €1,320.53

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