ATEX / IECEx Approved Pressure and Vacuum Feedthroughs

Series HF - High density, insulated wire sealed tube assemblies

A PTFE-lined, stainless steel tube is swaged over multiple, insulated, single-core copper and/or thermocouple-material wires to make a continuous wire, high-density, sealed feedthrough tube. These are used for thermocouples, resistance thermometers and low voltage instrumentation. The sealed tube assembly is usually mounted in a series PF or MF feedthrough. Series HF feedthroughs are manufactured with customer-specified wire lengths.

Epoxies and other sealants are not used in the construction of HF feedthroughs. They are suitable for use where outgassing is not permitted.
  • ATEX / IECEx Approved to Ex II 2 GD, Ex d IIC Gb / Ex e IIC Gb, Ex ta IIIC Da (when sealed with appropriate PF/MF fitting)
  • Saves time and costs as multiple sensor wires pass through one feedthrough
  • Sealed tubes with continuous, multiple, insulated conductors
  • Stainless steel tube (316L) is sealed without potting, epoxies or glues
  • Copper or thermocouple-material wires types J, K, T & N
  • Max. current rating 500mA at 100Vdc
  • Pressure range: Vacuum to 350 bar with low leak rate
  • 4 tube sizes carrying 12, 24, 40 or 60 size 24AWG copper or thermocouple material wires
  • * Dependent on sealant and fitting selected

Enquiry Form

1. Feedthrough Type

2. No. of Wires

  see table

3. Wire Material

 see table

4. Wire Length (mm)

 see table

4. Quantity Required

Contact Details

Company Name

Your Name



Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below

Send Enquiry