PTR Series Push-through Feedthroughs

Douglas Electrical Components manufactures our Push-Through Receptacle (PTR) hermetic assemblies for applications such as glovebox setups where the electrical connections are consistently changed and/or upgraded.

Watch the video to learn more about how the PTR assembly can work for you.

The hermetic insert is designed to provide a hermetic seal during use and replacement. Using four O-rings of Viton or Nitrile material, the insert and its replacement maintain the hermetic interface with the feedthrough housing, keeping the glovebox operator safe and isolated from the environment inside the glovebox. Inserts can be designed with a variety of electrical connections, with connectors being most common. A variety of standard MIL-spec connectors are available including MIL-DTL-38999, MIL-DTL-26462, and MIL-DTL-5015. Commercial connectors include 120V, 240V, RJ-45, USB-C, and USB 3.0. Non-standard options include circular connectors such as M12/M23, banana jacks, thermocouples, push-pull connectors, high voltage connectors, and high current/amperage connectors. Additionally, Douglas Electrical can integrate a variety of optical fiber connectors including ST, LC, and MTP.

There are three main mechanical interfaces for the glovebox wall or chamber called the feedthrough housing: NPT threaded connection, faceseal with jamnut, and weld-in assembly using 300-series stainless steel with MIL certifications as a standard. Custom designs and materials are available upon request.

Request a quotation for standard configurations or a custom design. Our made-to-order assemblies are typically available in 4-6 weeks with expedite options available.

Vacuum Face Seal Design Example

Bulkhead Feedthrough Housing – Install the feedthrough housing directly into the bulkhead or glovebox opening.

Bulkhead Jam Nut – Used to secure the housing to the wall of the glovebox. An O-ring is compressed against the outside wall to create a hermetic seal. Jamnut torque specifications are thread specific.

Insert Housing – The insert is the replaceable hermetic push-through. Four O-ring seals are used to hermetically seal the feedthrough within the bulkhead housing, even during replacement and upgrades.

Hermetic Epoxy Seals – Douglas Electrical employs a chemically inert hermetic epoxy to seal virtually any type of electrical or fiber connection within the insert housing, creating high-density customized hermetic solutions.

Inside and Outside Connector –Customers can specify the connectors and/or wires required to meet their program needs.

Locking Nut – Douglas supplies a locking nut to hold the insert housing into the bulkhead feedthrough housing. The customer tightens the locking nut to secure the insert housing within the feedthrough housing.

Retaining Ring – The retaining ring keeps the insert housing from being pulled inside the system during install or operation.