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High-Voltage Hermetic Seals

High-Voltage Hermetic Seals Are Bi-directional Seals for Vacuum or Pressure

Any type High voltage wire or cable up from 1-30 kV, single or multiple cables, with or without high voltage cable connectors. Depending upon the voltage, a wide variety of high voltage cables or wires up to 32 kV can be provided in a wide variety of hermetically sealed passthrough designs for low or high pressures and vacuums and temperature ranges between -200 to 200C. Cable insulations include PVC, silicone, XLPE, PTFE FEP Teflon® and Kapton®. Listed below are existing hermetic high voltage feedthru designs. Custom designs are also readily available upon request. All PAVE hermetic seals will pass either a vacuum helium leak test 10^-6 to 10^-9cc/sec leak rate or a pressurized gas bubble leak test. PAVE hermetic epoxy seals are much more robust also than fragile glass or ceramic seals.

Photos

Hermetic high-voltage feedthrough / Explosion-proof connector
Hermetic high-voltage feedthrough / Explosion-proof connector
High Current Rod 3296
High Current Rod 3296
High Voltage Hermetic Feedthrough
High Voltage Hermetic Feedthrough

High-Voltage Wire Feedthrough Seals 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)
PAVE Wire Seal® 150
PAVE Wire Seal® 200
PAVE Wire Seal® 200FR
-40° to 150° C
-60° to 200° C
- UL94V-O flame retardant
- Toxicity Rating K (NASA MAPTIS)
- Odor Rating A
- Thermal Vacuum Stability Rating A
- Flammability Rating X
- FM Class 3600, EExd II 90° C TI

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.

Installation Port or SizeType Wire InsulationTotal Wires or PinsAWG# VoltagePAVE Description Codes, Housing & WiresType SealDrawing #
1" o-ring face sealdual sided SHV1 w/ isolated shieldshv 7kVVS15L-SS-150-SHV-SHVIN STOCK hermetic connector1518
1" o-ring face sealdual sided MHV1 w/ isolated shieldmhv 5kVVS15L-SS-150-1-MHV-MHVhermetic connector2954
⅛ NPTFEP16kVPT2-B-80-1-FEP16-6-6feedthru3832
¾" piston o-ringFEP120kV shielded coax RG58SPF12-E-150-1/1/1-HRG58/E20/BUS20-38-12passthru5343
⅜" piston o-ringsilicone126 15kVSP6L-E-150-1-1786580-30N-3-26feedthrough2691-1
⅜" piston o-ringsilicone126 15kVSP6L-E-150-1-1788425-30N-5-24feedthrough1359
½" piston o-ringFEP115kVdc 18SP8S-E-150-1-Reynolds 295-0062-15-15feedthrough2631
¾" piston o-ringshv & pvc120KvSP12-E-150-SHV-1-B8866-SHV-14 4439
¾" piston o-ring sealPE1 #18#18 30kVDCSPF12-E-150HV-1-B200PA48-20T-28Tfeedthru cable5001
¾" piston o-ringPVC & PE130kVDCSPF12-E-150-1-B200PA48-36T-5Thermetic seal2569
¾" piston o-ringps118 30kVSPF12-E-150-1-B200PA48-77T-22feedthrough2370
¾" piston o-ringps118 30kVSPF12-E-150-1-B8866-36-24feedthrough1534
¾" piston o-ringps120 30kVSPF12-E-150-1-Belden9867/BUS16-36-40feedthrough2439
¾" piston o-ringps120 30kVSPF12-E-150-1-Belden9867-48-48feedthrough2311
¾" piston o-ringpvc118 30KvSPF12-E-150-1-B200PA48/BUS20-26-3.8feedthrough2809
n/aPTFE15KvHARWIN W2222-00 FEEDTHROUGH INSULATORfeedthrough5159
½" piston o-ringsilicone 5KV25kVSP8L-E-150HV-2-HV22-10-10feedthru4480
¾" piston o-ringPTFE2coax 20 30kVSPF12-E-150-1/1/1-RG59U/E20/BUS20-17-15/16feedthrough2921
¾" piston o-ringpvc122 30kVSPF12-E-150-1-PC22/BUS20-40-24feedthrough3309
¾" piston o-ringrubber118 5kVSPF12-E-200-1-RB18-8-SOCfeedthrough3134
¾" piston o-ringMHV solder cup122 3kVVS12L-SS-150-1-MHV-SChermetic connector2966
1-¼" o-ring face sealcable seal87VS18-SS-150-7/1-RG174/REYNOLDS2896-85FT-10FTRG1744333
1¼" o-ring face sealFarnell 5602 cable170 ohm, 4kVVS18-SS-150-1-5602-5-5mfeedthrough3167
⅛" NPTPTFE124 10kVPT2-SS-150-1-10KV COAXfeedthrough1151
custom flange face sealPTFE25kVFL18.9/5.6-AL-150-2-TE24-PIN-6 5006
1¼" flangeface sealPTFE2 FL20/8-AL-150-2-TE24-PIN-6243762
1¼" o-ring face sealPTFE2coax 18 kvdcVS18-SS-150-5/1-RG316/REYNOLDS HV-36-36feedthrough3509
¾" piston o-ringPTFE224 4kVSPF12-E-150-1/1-TE24-FO1B090-24-24feedthrough1659
1" o-ring face sealsilicone222 15kVVS15L-SS-90-2-HV22-60-24,15KVfeedthrough1500
11mm piston o-ringsilicone330KvSP7XL-E-200HV-3-FEP20-7-18 3674
¾" piston o-ringPTFE3rg59 7.5kVSPF12-E-150-1/1/1-RG59U/E20/BUS20-36-152.5kV coaxial plus 2 wires4998
¾" piston o-ringPTFE3rg59 7.5kVSPF12-E-150-1/2-RG59U/E20-33-4feedthrough2822
¾" piston o-ringPTFE320 15kVSPF12-E-150-1/1/1-1679611/TEE18/22-24-24 15kvfeedthrough2252
1" piston o-ringPTFE4 #12#12 15kvVdcSP16S-E-150HV-4-CRT12-72-72passthrough5368
17.37mm " piston o-ringPE/PVC722 15kvSP11L-E-150-1-Belden8868-60-20CM 15kvfeedthrough2392
61mm o-ring face sealsilicone716 20kVSPF38-E-150-7-16SIL-14-14, 20kvdcfeedthrough2266
1"piston o-ringPTFE8 #22#22 15kVdcSP16S-E-150HV-8-CRT22-72-72passthrough5367
¾" o-ring face sealXLPE1224 5kVVS12L-AL-150-12-Judd24-24-15feedthrough2600
¾" piston o-ringpvc118 30kVSPF12-E-200-1-PC18-8-SOCfeedthrough2304-1
custom o-ring flange night visionPTFE1926, 7kvdcFL-SS-150-18/1-TE26/HV18-24-11feedthrough2528
0.996" piston o-ringsilicone2222 3kvSP16-E-150-22-HV22-18-18feedthrough2959