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Low Vacuum Feedthrough

 

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Fluid feedthroughs use a hermetic seal to transmit fluids through the walls of a pressurized or vacuum system. Devices include nitrogen, air, and water feedthroughs.
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  • Meeting Feedthrough Challenges on the A-3 Test Stand
    of leakage, and provide great flexibility to handle future requirements.”. On the A-3 test stand, the low voltage signals (30mV and lower) require continuous feedthrough to prevent signal attenuation, while the 28VDC control signals are routed using connectors. To prevent cross talk, each channel
  • The six challenges of specifying and procuring hermetic feedthroughs for space simulation
    be met in terms of materials and system reliability. A typical comment we hear from our space simulation customers is that, "Everything is important in our supply chain." Compliance with standards is important. For example, our epoxy was recently approved by NASA as a low outgassing material. Depending
  • Magnetic fluids tackle tough sealing jobs
    of industrial rotation equipment. Ferrofluid seals generally fall into two categories: those used on high-vacuum-processing equipment, and low-friction, hermetic seals that exclude particulates and gases. In vacuum-manufacturing processes, magnetic fluids seal feedthroughs transmitting rotary motion
  • Motor Designs To Survive Hostile Environments
    developed for motor-hostile environments -- can reliably withstand the effects of radiation, underwater operation, vacuum operation, and extremely high and low temperatures, among other conditions. Accordingly, these motors are the key to a wide range of new motion control opportunities. Empire Magnetics
  • Waterproof Step Motors Make Waves in Industry
    , standard step motors are not designed to facilitate seals. They are designed to be low in cost. As a result, proper sealing of the motor would require a complete re-design of motor parts, with an increase in manufacturing cost. A proper design approach for motors exposed to moisture incorporates
  • Medical Device Link .
    , NY; 718/646-7996) offers Rescor 914 as a substitute for Macor glass ceramic, alumina, and alumina silicate when larger sizes are needed. Temperatures may not exceed 1000 F. This ceramic is dense, vacuum-tight, inert to oxidizing and reducing atmospheres, and has low thermal conductivity. It offers
  • MICRO: Products
    on the Tractrix platform, the unit can be used for coating, developing, or cleaning. It can process a wide range of substrates, including rounds and squares. The system can be equipped with a low-cost, accurate cartridge dispense system for high-viscosity materials or standard photoresist. Optional process
  • MICRO: Product Technology News (September 2000)
    comparable to that of pumps for 200-mm processes. They offer high pumping speeds, quiet operation, ease of control, and low cost of ownership for the difficult etch, PECVD, and LPCVD processes used in silicon wafer and flat-panel display manufacturing. Two systems added to the NSX series perform

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