Thermocouple Hermetic Feedthroughs
Thermocouple Hermetic Seals
From 1 to over 100 pairs of any type thermocouple to any lengths can be sealed with the conductor continuous for maximum continuity and accuracy with no erratic pin connections.
Hermetic bulkhead rectangular connector versions with thermocouple contacts for Type T, J, K or E thermocouples are available in standard density d-sub connector versions for 9, 15, 25, 37 and 50 #20 pin arrangements. Supplied with mating connectors and loose crimp thermocouple grade contacts. Please contact our sales engineering for quotes and more details for either single or dual sided DB connector versions.
PAVE Thermocouple Hermetic Feedthrus and bi-directional seals will seal both pressure and vacuum in either or both directions. For pressures above 300 psi (20 bar), please check with the sales engineer if changing the pressure direction shown on the drawing.
While all PAVE products will comply with a helium leak rating from <10-6 cc/sec to 10-9 cc/sec (air equivalent) depending upon design, PAVE also uses more cost-effective air bubble in fluid leak testing typically at 80 psi (5 bar). Special high-pressure testing up to 10 k psi (600 bar) is also available.
PAVE epoxy hermetic seals are NASA-approved for low outgassing in high vacuums up to 10^-8 Torr.
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Thermocouple Feedthrough Connectors Specifications
- Dielectric Strength: >17.4 kV/mm
- Dielectric Constant: 5.3@ 1 Mhz
- Volume Resistivity: @ 125° C1x1015 Ohm-cm
- Dissipation Factor: 0.03 @ 1 Mhz
- Hardness, Shore D: 96
- Low Vacuum Outgassing: TML: 25% ;CVC<: .01%
- High Fungus Resistance: MIL-STD–454J/4
- Specific Gravity: @ 25° C 2.3
- Compressive Strength: >948 kg/cm2
- Compressive Modules: 7.7×104 kg/cm2
- Tensile Strength: >470 kg/cm2
- Water Absorption (24 hours): 0.03%
HERMETIC EPOXY TEMPERATURE RATING (Epoxy is proprietary and not sold separately)
The PAVE-Seal® epoxy is impervious to most oils, solvents, fuels, freons, gases, etc. Epoxy samples are available upon request for customer’s evaluation for any specific chemical compatibility.
Any type or size of wire or cable may be specified including coaxial cables, thermocouple wire pairs, high voltage wires, fiber optic cable, flat cables, etc. for length.
NO DETECTABLE LEAKAGE THRU CONDUCTOR OR INSULATION.