O-ring feedthrough

hermetichigh-currentvacuum

Change electrical connections without breaking hermetic seals 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. 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. 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.