JacketSeal™ Series Liquid Tight Wire / Cable Feedthrough Seals

DuctorSeal wire feedthroughs are specifically designed for hermetic applications where as JacketSeal is liquid or gas sealing is required for an application.

DuctorSeal will hermetically seal directly at the conductor, creating a true hermetic seal against liquids and gases.

JacketSeal seals to the jacket of the conductor rather than the actual exposed conductor. Both designs are specified for hazardous locations, yet the level of sealing is determined by the application.

While the cable and connector industries can use the terms interchangeably, a hermetically sealed connector is physically sealed to a vacuum standard, such as 1×10^-9, to ensure the leakage rate is minimal. Sealed connectors refer to external environmental conditions such as water and dust penetration with standards such as IP (Ingress Protection) and NEMA (National Electrical Manufacturers Association) ratings are common. NEMA standards will also cross over into those for use in hazardous location environments, where approval standards such as IEC, ATEX, and others exist for sealed protection against explosions.

Yes. As an example, a JacketSeal cable assembly can be combined with our DuctorSeal technology when both a water-tight seal and a hermetic seal are required for the application.

Yes. Sensors and instrumentation applications are common for JacketSeal designs. Since sensors require both power and signal transmission, a JacketSeal feedthrough provides a water-tight seal between the electronics and the external environment. From submersible sensors to aerospace instrumentation, hermetic electrical assemblies become an important part of the design process to suit the environment in which the sensor operates.

Helium leak rate can be easily converted to a water vapor leak rate by using a 0.469 multiplication factor. To learn more about hermetic feedthroughs in being sealed from water vapor, download the whitepaper: Hermetic Feedthroughs Safeguard Mission-Critical Electronics

Yes.  Liquid-tight connectors are commonly used to protect instrumentation and electronics from weather elements, submersion in fluids, and applications elements such as flooding.  Gas-tight electrical connections such as wire bushings are commonly used in hazardous locations.  The hermetic or gas-tight seal prevents the penetration of the gas into the instrumentation or electronics that can cause the ignition of the flammable liquid or gas.  These types of seals are governed by third party approval agencies and standards.  Douglas Electrical Components will work with you and your team to either design a custom liquid or gas-tight seal for your hazardous location file or offer a design from our hazardous area listing for explosion-proof areas.

Compression seals can leave gaps between the conductors in a feedthrough. This creates potential leak paths between conductors. JacketSeal creates a wire seal around the individual wire jackets. The epoxy bonds to nearly any conductor material and is expertly applied to ensure the proper sealing between conductors within the housing.

Our wire seals are tested mechanically and electrically for a proper seal and operation at our factory. It’s designed, sealed and ready for installation, creating a plug and play component. This saves your operators from compressing the fitting and testing its seal.

Yes, Douglas can seal to the cable jacket (including materials such as Teflon and Tefzel) as well as to the conductor jackets. This protects and seals the feedthrough with an added layer of protection. Other design features can also be sealed including shielding and armor.