DuctorSeal: Custom Hermetic Cable Harness

DuctorSeal® wire and cable assemblies incorporate custom wire harnesses in hermetically sealed feedthroughs that have been pre-wired and pre-tested.

DuctorSeal cable harnesses support many different combinations of connectors on the vacuum and atmospheric sides and can accommodate conductor counts of up to three thousand wires.

Epoxy sealed to eliminate all leaks—even in stranded wires—DuctorSeal assemblies feature precision-machined housings of aluminum, titanium, steel, brass, plastic or low outgassing epoxy. The seals are available with standard or custom bundles composed of wires and cables ranging in size from AWG 38 to 500 MCM.

DuctorSeal custom hermetic cable harnesses can withstand a range of operating environments, including vacuums from 1x10-10 Torr to pressures of 15,000 psi, and can eliminate leak paths. Operating temperatures range from 4 K (LHe) through 200°C. High voltage and low cross-section wire feedthroughs operating up to 30kV-DC are also available. 

Sample configurations:

custom hermetic cable harness 

Custom flanged DuctorSeal combines individual stranded copper conductors and shielded thermocouple cable with a low-outgassing epoxy potting material.

custom hermetic cable harness 

DuctorSeal plug-and-play cable harness assembly creates a high-integrity seal for the lead wires that pass into x-ray heads, preventing dielectric oil leaks.

custom hermetic cable harness 

Radial o-ring feedthrough provides quick and easy installation and can incorporate multiple o-rings for redundant sealing.

custom hermetic cable harness 
Ribbon-cable DuctorSeal packs a hermetic, IDC connector and Schrader valve into a custom radial o-ring end cap. This DuctorSeal ships pre-tested and ready for quick installation.
 custom hermetic cable harness

Dual hermetic seal feedthrough allows single or multiple conductors to penetrate two pressure bulkheads—for example, a vacuum or gas-filled container within a container filled with dielectric oil or heat transfer fluid.

custom hermetic cable harness 

High-voltage DuctorSeal can achieve test voltages in excess of 30,000 volts.

custom hermetic cable harness 

Right angle DuctorSeals save space by allowing cables to make an abrupt turn after exiting the pressure bulkhead.

custom hermetic cable harness 

High conductor count DuctorSeal seals more than 1,000 conductors inside a single penetration. DuctorSeal feedthroughs support conductor densities that would be impossible with traditional connectors.

 custom hermetic cable harness

DuctorSeal-Soldercup hybrid combines a low-cost molded housing design with a convenient soldercup connection at the bulkhead.

custom hermetic cable harness 

Explosion proof DuctorSeal are increasingly common in oil and gas applications that adhere to CSA, ATEX, IEC and US explosion proofing standards. Explosion proof wire feedthroughs are available with discrete NPT fittings, large ASME flanges and custom flange designs.

custom hermetic cable harness 

Shielded cable DuctorSeal can mix coaxial, triaxial, twisted shielded pairs and other shielded cables in a single compact penetration. In addition to creating tight hermetic seals, DuctorSeal designs improve electrical performance by passing uninterrupted shielding through the seal area.

custom hermetic cable harness 

Cryogenic DuctorSeals operate at temperatures as low as 4K (-269ºC) and support a wide variety of wire bundles.

Douglas Electrical
Address:    5 Middlebury Blvd.
Randolph, NJ 07869
Tel:    973.627.8230
Fax:   866.206.6916
General inquiries:   contactus@douglaselectrical.com
T 973.627-8230
Technical information:   applications@douglaselectrical.com
T 973.627-8230

Engineered Hermetic Seals and Connectors for Wire and Cable

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