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Series EF - High voltage / current electrode
Pressure and Vacuum Feedthroughs
The integral electrode mounted in these feedthroughs enables specifiers to provide high-voltage, high-current supplies in process enclosures, autoclaves, vacuum furnaces and reactor vessels to power heaters, electric motors and other devices needing high power supply.
Feedthroughs are available with three sizes of copper electrodes rated 40A, 100A & 200A at 2kV maximum. Stainless steel conductors, that have a lower current rating than copper electrodes, can be specified instead of copper. These are often used when temperatures exceed 380ºC. Nickel conductors may also be specified to special order.
Feedthroughs with copper electrodes have brass nuts and washers. Stainless steel nuts and washers are fitted to stainless steel and nickel electrodes.
Series EF sealed electrode assemblies are supplied pre-torqued for immediate installation. Integral insulators are Alumina.
Feedthroughs are available with three sizes of copper electrodes rated 40A, 100A & 200A at 2kV maximum. Stainless steel conductors, that have a lower current rating than copper electrodes, can be specified instead of copper. These are often used when temperatures exceed 380ºC. Nickel conductors may also be specified to special order.
Feedthroughs with copper electrodes have brass nuts and washers. Stainless steel nuts and washers are fitted to stainless steel and nickel electrodes.
Series EF sealed electrode assemblies are supplied pre-torqued for immediate installation. Integral insulators are Alumina.
- Copper or Stainless steel electrodes
- Three sizes of feedthrough assembly
- Rated for use at 2KV at up to 200A
- Pressure range: Vacuum to 550 bar*
- Temperature range:
<-200°C to +380°C (Cu electrode)
<-200°C to +870°C (SS electrode)*
* Dependent on sealant selected - Three sizes of feedthrough assembly
- 316L Body (and seat where applicable). Follower and cap in 303 or 304; Alumina insulators
- Choice of 3 sealant materials
- Maintainable - sealants replaceable
- Electrodes pre-installed in feedthrough and torqued ready for installation
- A large range of feedthroughs ia available to buy online
- Choice of 3 sealant materials
Body Size, Pressure Guide and available Bore Sizes for BSPT, BSPP and NPT Threads2
| Body Size | Size 2 (1/4") | Size 3 (1/2") | Size 4 (3/4") | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sealant | L | T | V | L | T | V | L | T | V | ||
| Voltage Rating | 2Kv | 2Kv | 2Kv | ||||||||
| Electrode Material | Electrode Current Rating | Electrode dia. (mm) | The table indicates the available electrode sizes for each feedthrough body size. The maximum guide pressure value (in bar) at 20°C is shown for each sealant material according to element size1. These ratings are a guide and the suitability of any of the products described herein for a particular application is entirely at the discretion of the purchaser as being the best judge for that particular application. |
||||||||
| Copper 316 Stainless Steel Nickel |
40A 10A 15A |
3.2 | 600 | 350 | 550 | ||||||
| Copper 316 Stainless Steel Nickel |
100A 15A 40A |
6.35 | 450 | 150 | 400 | ||||||
| Copper 316 Stainless Steel Nickel |
200A 30A 80A |
12.7 | 200 | 150 | 150 | ||||||
- The guide pressures shown for each type of sealant are at 20°C. Spectite® feedthroughs from TC Ltd. have been designed to provide an efficient seal on the elements and restrain them from moving under pressure and vacuum. It is good installation practice to provide additional, mechanical restraint to the elements when differential pressure exceeds 50% of the feedthrough guide pressure value at 20°C. With an increase in temperature, a reduction in the maximum guide pressure value can be expected. These ratings are a guide and the suitability of any of the products described herein for a particular application is entirely at the discretion of the purchaser as being the best judge for that particular application.
- Other types of process connection are available, see Feedthrough Sizes.