SAE Series SAE Feedthroughs

An SAE electrical feedthrough allows power or signal to “feed” or “pass” through from one end of a mechanical interface to another. In this case, the feedthrough uses an SAE fitting to mechanically interface with the device, control box, or wall.

SAE feedthroughs can typically operate at higher pressures. For customers with a preference to seal against an O-ring, the SAE fitting is a suitable option. NPT feedthroughs can require less wall thickness than an SAE fitting, so contact our engineers to discuss your application.

Douglas has both in-house CNC machining as well as external suppliers; we can machine SAE fittings out of a variety of materials including stainless steel, high-strength nickel alloys, aluminum, and copper. Contact our engineers to review the pressure, temperature, and liquid or gas compatibility requirements to ensure that the correct fitting is designed.

Contact our sales engineers; our team can confirm the wire density of a feedthrough based on the inside diameter hole, wire gauge, and conductor count. Our technology creates a high-density solution, minimizing the number of feedthroughs required or the space and weight of the feedthrough itself.

Douglas uses a high-strength hermetic epoxy to hermetically seal to the electrical connection. For wire applications for example, our epoxy bonds directly to the conductor to prevent any leaks in vacuum or positive pressure. This performs beyond a water-tight connection.