E.0

Isolator

Introduction

Description
Electrical isolators, sometimes
referred to as ‘breaks’ or ‘envelopes’,
consist of metal sleeves brazed toeach end of an insulating ceramic
tube. These assemblies provide
electrical isolation of system components that operate within acommon environment. They canalso be used to act as a conduit tointroduce gases or liquids into
hermetic systems.
• Cryogenic isolators are used tointroduce cryogenic fluids into asystem and to provide electricalisolation of line components.
• Water isolators are used to introduce water or other fluids into asystem and to provide electricalisolation of line components.
• Vacuum isolators are used to provide an electrical break between
the vacuum system and otherexternal components.

ISOLATOR

Standard Specifications• Voltages up to 75 kV DC• Temperature Range:-269˚C to 450˚C• Internal IDs to 8 inches• Internal Pressure 1 x 10-10
torr to 1000 psig

Extreme / Custom Design• Voltages in excess of 180 kV• Pressures to 10,000 psig
• Insulator IDs in excess of15 inches• Special fittings• Radiation resistant• Non-circular geometries• Fluted configurations

154

Installation
Standard installation mountings
include:Typical Isolator Construction• Weld (Pulse-TIG, TIG, Laser, E-Beam)• ISO KF flange• ConFlat flange

Applications
A few of the many applications inwhich these isolators are commonlyused are:• Semiconductor processing
equipment• Particle accelerators• Furnaces• Analytical equipment• Beam line tubes• Aerospace• Telecommunications

New Products• Newly designed water isolatorswith higher pressure ratings• Standard non-magnetic isolators

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Isolator

TypeE.0

Table of Contents

Section
Pages

Isolator ID(@ 20˚ C)

Temperature
Range(inches)

Sub-section

to13 kV

to1000 psig-269˚C to450˚C.11 to .41

Cryogenic

E.1
156-157

5 kV

to450 psig

0˚C to100˚C.32 to .57

Water

E.2
158-159

to75 kVto900 psig-269˚C to450˚C.31 to 8.0

VacuumE.3
160-167

Voltage
DC

Pressure Rating

ISOLATOR

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E.1

Isolator

Cryogenic

Cryogenic - ID: .11 [2.7]

Cryogenic - ID: .25 [6.4]

Specifications

ISOLATOR

Materials
Tube:.11 ID: 321 Stainless steel.25 ID: 304 Stainless steel.41 ID: 304 Stainless steel
Cap: 42 Nickel ironInsulation: Alumina ceramic
Magnetic Materials: Yes

Cryogenic - ID: .25 [6.4]

Voltage Rating See table
Temperature Range -269°C to 450°C
Pressure @ 20°C See table

Cryogenic - ID: .41 [10]156

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Isolator

Cryogenic
ID: .11 [2.7]

Cryogenic

PRESSURE
PSIG
BARPART
NUMBER

Weld

1000

680858-01-W

13 kV

Weld90061

17108-01-W

Cryogenic
ID: .25 [6.4]

13 kV

Weld

900

618002-01-W

Cryogenic
ID: .41 [10]

13 kV

Weld

400

278002-02-W

VOLTAGEDCINSTALLATION

6 kV

Cryogenic
ID: .25 [6.4]

E.1

ISOLATOR

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E.2

Isolator

Water

Water - ID: .26 [8.1]
3.8 [97].80 [20].032 [0.8]Ø.56 [14]Ø.260±.003[6.60]

CopperTubeØ.26 [8.1]

Water - ID: .38 [11]3.8 [97].032 [0.8].80 [20]

Ø.69 [17]Ø.385±.003[9.78]

CopperTube

Ø.38 [11]Specifications

Water - ID: .51 [14]ISOLATOR

Materials

158

3.8 [97]

Tube: Copper
Insulation: Alumina ceramic
Magnetic Materials: No.80 [20].032 [0.8]Ø.81 [21]Ø.510±.003[12.95]

Voltage Rating 5 kV DC
Temperature Range 0°C to 100°C
Ø.51 [14]Pressure @ 20°C See table

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CopperTube

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Isolator

Water
ID: .26 [8.1]

Water

PRESSURE @ 20˚C
PSIG
BAR

E.2PARTNUMBER

VOLTAGEDC

INSTALLATION

5 kVBraze or Solder

4503017228-01-B

WaterID: .38 [11]5 kVBraze or Solder

300

2017229-01-B

Water
ID: .51 [14]5 kVBraze or Solder

200

1317230-01-B

ISOLATOR

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ISOLATOR

E.3

Isolator

VacuumInsulator ID: .31 [7.9]Insulator ID: .75 [19]Weldable

Weldable

ISO KFISO KF

ConFlat

ConFlatSpecifications - Insulator ID: .31 [7.9]

Specifications - Insulator ID: .75 [19]Materials

Materials

Tube: Kovar
Insulation: Alumina ceramic
Magnetic Materials: Yes

160

Tube: Stainless steel
Insulation: Alumina ceramic
Magnetic Materials: See table

Voltage Rating 15 kV DC

Voltage Rating See table

Temperature Range -55˚C to 450˚C, ISO KF -25˚C to 205˚C

Temperature Range See table

Pressure @ 20°C See table

Pressure @ 20°C See table

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Isolator

E.3

VacuumWeldable
ID:.31 [7.9]

VOLTAGEDC

INSTALLATION

15 kV

Weld

ISO KF
ID:.31 [7.9]15 kVConFlat
ID:.31 [7.9]15 kV

Weldable
ID:.75 [19]VOLTAGEDC

INSTALLATION

6 kV
20 kV
35 kV
6 kV
20 kV35 kV

Weld
Weld
Weld
Weld
Weld
Weld

PART
NUMBER

PRESSURE @ 20 ˚C
PSIG
BAR
900

61

9997-05-W--

17235-01-KF

900614511-01-CF

ISO FLANGE
NW16KF

CONFLAT FLANGE

ConFlat
ID:.75 [19]sales@ceramtec.com

PRESSURE @ 20 ˚C TEMP ˚C
MIN MAXPSIGBARDIMENSIONSA
B

MAGNETIC
MATERIALSPARTNUMBER

1.9 [48]
2.6 [67]
3.6 [92]
1.9 [48]
2.6 [67]
3.6 [92]

0.25 [6.3]
1.0 [25]
2.0 [51]
0.25 [6.3]
1.0 [25]
2.0 [51]

500
500
500
350
350
350

3434
34
242424-55-55-55-269-269-269

450
450
450
450450450

Yes
Yes
Yes
NoNoNo9998-04-W
9998-01-W
9998-03-W
9998-06-W
9998-07-W
9998-08-W

2.9 [73]
3.6 [92]
4.6 [118]
2.9 [73]
3.6 [92]
4.6 [118]

0.25 [6.3]
1.0 [25]
2.0 [51]
0.25 [6.3]
1.0 [25]
2.0 [51]

---25
-25
-25
-25
-25
-25

205
205
205
205
205
205

Yes
Yes
Yes
No
NoNo

17236-01-KF
17236-02-KF
17236-03-KF
17236-04-KF
17236-05-KF
17236-06-KF

2.9 [73]
3.6 [92]
4.6 [118]
2.9 [73]
3.6 [92]
4.6 [118]

0.25 [6.3]
1.0 [25]
2.0 [51]
0.25 [6.3]
1.0 [25]
2.0 [51]

500
500
500
350
350
350343434242424-55-55-55-269-269-269

450
450
450
450
450
450

Yes
Yes
Yes
No
No
No

8000-04-CF
8000-02-CF
8000-03-CF
8000-06-CF
8000-07-CF
8000-08-CF

ISOLATORISO KF
ID:.75 [19]1 1/3” (NW16CF)

ISO FLANGE
6 kV
20 kV
35 kV
6 kV
20 kV
35 kV

NW16KF
NW16KF
NW16KF
NW16KF
NW16KF
NW16KF

CONFLAT FLANGE
6 kV
20 kV
35 kV
6 kV
20 kV
35 kV

1 1/3” (NW16CF)
1 1/3” (NW16CF)
1 1/3” (NW16CF)
1 1/3” (NW16CF)
1 1/3” (NW16CF)
1 1/3” (NW16CF)

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E.3Isolator

VacuumInsulator ID: .90 [23]Insulator ID: 1.3 [32]Weldable

Weldable

ISOLATORCISO KFISO KF

ConFlat

ConFlatSpecifications - Insulator ID: .90 [23]Specifications - Insulator ID: 1.3 [32]Materials

Materials
Tube: Kovar or 304 stainless steel
Insulation: Alumina ceramic
Magnetic Materials: See table

Tube: Kovar
Insulation: Alumina ceramic
Magnetic Materials: Yes

162

Voltage Rating 30 kV DC

Voltage Rating See table

Temperature Range -55˚C to 450˚C, ISO KF -25˚C to 205˚C

Temperature Range See table

Pressure @ 20°C See table

Pressure @ 20°C See table

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Isolator

Weldable
ID: .90 [23]VOLTAGEDC

INSTALLATION

30 kV

Weld

PART
NUMBER

PRESSURE @ 20 ˚C
PSIG
BAR
360

249997-09-W--

17237-01-KF

360

244511-02-CF

DIMENSIONSBCISO FLANGEISO KF
ID: .90 [23]30 kVConFlat
ID: .90 [23]30 kV

NW40KF

CONFLAT FLANGE
2 3/4” (NW35CF)

VOLTAGEINSTALLATION
DC
5 kV
35 kV
65 kV
5 kV
35 kV
65 kV

ISO KF
ID: 1.3 [32]ConFlat
ID: 1.3 [32]sales@ceramtec.com

Weld
Weld
Weld
Weld
Weld
Weld

A

1.9 [49]
3.8 [96]
5.7 [144]
1.9 [49]
3.8 [96]
5.7 [144]

PRESSURE @ 20 ˚C
PSIG
BAR

TEMP ˚C
MIN MAXMAGNETIC
MATERIALSPARTNUMBER

0.6 [4.0] .020 [0.50] Kovar
2.0 [50] .020 [0.50] Kovar
3.9 [99] .020 [0.50] Kovar
0.6 [4.0] .035 [0.90] Stn.Stl.
2.0 [50] .035 [0.90] Stn.Stl.
3.9 [99] .035 [0.90] Stn.Stl.

350
350
350
250
250
250

242424171717-55-55-55-269-269-269

450
450
450
450
450
450

Yes
Yes
Yes
NoNoNo9999-03-W
9999-01-W
9999-04-W
17199-01-W
17199-02-W
17199-03-W

0.16 [4.0]
2.0 [50]
3.9 [99]
0.16 [4.0]
2.0 [50]
3.9 [99]----25-25-25-25-25-25

205
205
205
205
205
205

Yes
Yes
Yes
NoNoNo17238-01-KF
17238-02-KF
17238-03-KF
17238-04-KF
17238-05-KF
17238-06-KF

2.3 [59] 0.16 [4.0]
4.2 [107] 2.0 [50]
6.1 [155] 3.9 [99]2.3 [59] 0.16 [4.0]
4.2 [107] 2.0 [50]
6.1 [155] 3.9 [99]

-350
350
350
250
250
250

2424
24
171717-55-55-55-269-269-269

450
450
450
450
450450

Yes
Yes
Yes
No
No
No

8001-03-CF
8001-02-CF
8001-04-CF
8001-06-CF
8001-07-CF
8001-08-CF

ISOLATOR

Weldable
ID: 1.3 [32]E.3

VacuumISO FLANGE
5 kV
35 kV
65 kV
5 kV
35 kV
65 kV

NW40KF
NW40KF
NW40KFNW40KF
NW40KF
NW40KF

2.1 [54]
4.0 [101]
5.9 [149]
2.1 [54]
4.0 [101]
5.9 [149]

CONFLAT FLANGE
5 kV
35 kV
65 kV
5 kV
35 kV
65 kV

2 3/4”(NW35CF)
2 3/4”(NW35CF)
2 3/4”(NW35CF)
2 3/4”(NW35CF)
2 3/4”(NW35CF)
2 3/4”(NW35CF)

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E.3

Isolator

VacuumInsulator ID: 2.0 [51]Insulator ID: 2.5 [64]Weldable

Weldable

ConFlat

ISOLATOR

ConFlatSpecifications - Insulator ID: 2.0 [51]Materials

WeldableTube: Kovar
Insulation: Alumina ceramic
Magnetic Materials: Yes
Voltage Rating 40 kV DC
Temperature Range -55°C to 450°C
Pressure @ 20°C 180 PSIG (12 Bar)Specifications - Insulator ID: 2.5 [64]Materials

ConFlat

Tube: Kovar or 52 Nickel ironInsulation: Alumina ceramic
Magnetic Materials: Yes
Voltage Rating See table
Temperature Range See table
Pressure @ 20°C See table

164

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Isolator

Weldable
ID: 2.0 [51]VacuumVOLTAGE
DC

INSTALLATIONPARTNUMBER

40 kV

Weld9997-21-W

CONFLAT FLANGE

ConFlat
ID: 2.0 [51]40 kV

4 1/2” (NW63CF)

Weldable
ID: 2.5 [64]VOLTAGEDC

INSTALLATION

60 kV

Weld

4511-03-CF

PRESSURE @ 20 ˚C
PSIG
BAR

PART
NUMBER-55

4509997-25-W

150

10-55

4504511-05-CF

CONFLAT FLANGE

Weldable
ID: 2.5 [64]VOLTAGEDC

INSTALLATIONDIMENSIONS
A
B

20 kV
60 kV

Weld
Weld

3.7 [95] 0.90 [22.8]
6.5 [165] 3.65 [92.7]

6” (NW100CF)

PRESSURE @ 20 ˚C
PSIG
BAR

TEMP ˚C
MIN MAXPARTNUMBER

808055-269-269

45045017140-01-W
17140-02-W

808055-269-269

45045017144-01-CF
17144-02-CF

ISOLATOR

1060 kVsales@ceramtec.com

TEMP ˚C
MIN MAX150

ConFlat
ID: 2.5 [64]ConFlat
ID: 2.5 [64]E.3

CONFLAT FLANGE
20 kV60 kV

4 1/2” (NW63CF) 4.5 [114] 0.90 [22.8]
4 1/2” (NW63CF) 7.3 [184] 3.65 [92.7]

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ISOLATOR

E.3

Isolator

VacuumInsulator ID: 4.0 [102]Insulator ID: 6.0 [152]Weldable

Weldable

ConFlat

ConFlatSpecifications

Insulator ID: 8.0 [203]Materials

WeldableTube: 52 Nickel ironInsulation: Alumina ceramic
Magnetic Materials: Yes
Voltage Rating See table
Temperature Range -269°C to 450°C
Pressure @ 20°C
Insulator ID: 4.0 [102] – 60 PSIG (4 Bar)
Insulator ID: 6.0 [152] – 40 PSIG (2.7 Bar)
Insulator ID: 8.0 [203] – 30 PSIG (2 Bar)
ConFlat166

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Isolator

Weldable
ID: 4.0 [102]ConFlat
ID: 4.0 [102]Weldable
ID: 6.0 [152]Weldable
ID: 8.0 [203]ConFlat
ID: 8.0 [203]sales@ceramtec.com

VOLTAGEDCINSTALLATIONDIMENSIONS
A
B

PART
NUMBER

20 kV
60 kV

Weld
Weld

3.7 [95] 0.90 [22.8]
6.5 [165] 3.65 [92.7]

17141-01-W
17141-02-W

E.3

CONFLAT FLANGE
20 kV
60 kV

6” (NW100CF)
6” (NW100CF)

4.6 [117] 0.90 [22.8]
7.4 [187] 3.65 [92.7]

17145-01-CF
17145-02-CF

VOLTAGEDC

INSTALLATIONDIMENSIONS
A
B

PART
NUMBER

30 kV
55 kV
75 kV

Weld
Weld
Weld

4.5 [114]
6.0 [152]
7.5 [191]

1.5 [38]
3.0 [76]
4.5 [114]

17142-01-W
17142-02-W
17142-03-W

5.5 [140]
7.0 [178]
8.5 [216]

1.5 [38]
3.0 [76]
4.5 [114]

17146-01-CF
17146-02-CF
17146-03-CF

CONFLAT FLANGE
30 kV
55 kV
75 kV

8” (NW150CF)
8” (NW150CF)
8” (NW150CF)VOLTAGEDC

INSTALLATIONDIMENSIONS
A
B

PART
NUMBER

30 kV
55 kV
75 kV

Weld
Weld
Weld

4.75 [121] 1.5 [38]6.25 [159] 3.0 [76]7.75 [197] 4.5 [114]17143-01-W
17143-02-W
17143-03-W

5.8 [146] 1.5 [38]7.3 [184] 3.0 [76]8.8 [222] 4.5 [114]17147-01-CF
17147-02-CF
17147-03-CF

ISOLATORConFlat
ID: 6.0 [152]Vacuum

CONFLAT FLANGE
30 kV
55 kV
75 kV

10” (NW200CF)
10” (NW200CF)
10” (NW200CF)

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