BCE Epoxy Vacuum Feedthrough for Liquids and Gas

Here is a brief introduction to a vacuum feedthrough designed for delivery of liquids and/or gas in to a vacuum chamber. The feedthrough has a maximum operating temperature of 150°C-200°C and includes (2) 316 SS tube socket weld unions and 1/4" OD tubing.

A wide variety of optional fittings, tube diameters, and epoxy sealing shapes available.

For more information, visit http://www.belilove.com/feedthrough or call (510) 274-1990.

Fiber Optic Cable Epoxy Vacuum Feedthrough

Here is a short video outlining the design of a fiber optic vacuum feedthrough assembly.

Epoxy compounds now rival glass and ceramic in performance. BCE is at the forefront of this development and leverages modern epoxy's unique properties to solve your feedthrough challenges.

BCE's sixty years of high-tech design experience in semiconductor equipment, medical equipment and R&D yields innovative vacuum feedthrough solutions.

Call Today (510) 274-1990 or visit http:// www.belilove.com/feedthrough

Vacuum Feedthroughs

Epoxy sealed vacuum feedthrough

There exists a popular idiom which states, "Life does not exist in a vacuum." While the linguistic implications of the popular saying are still up for debate in terms of life in general, in high-tech industries an environment can, indeed, exist in a vacuum. Both creating and subsequently evaluating conditions relating to sub-atmospheric pressure environments has been a longstanding challenge of the science and research. The benchmark for failure is rather absolute due to the fact the conditions of the vacuum can be compromised thanks to the smallest amount of a complicating substance, potentially resulting in substantial monetary or productivity losses. Due to these facts, the monitoring and evaluation of vacuum conditions is paramount to researchers and engineers; the way engineers execute such a balancing act between preserving the environment and tracking the process relies on technologies known as vacuum feedthroughs, which enable the transference of signals to equipment or instrumentation located outside the vacuum environment from inside the vacuum environment.

PCB mounted epoxy sealed vacuum feedthrough.

Glass or ceramic vacuum feedthroughs, sometimes known as bulkhead connectors, are commonly used to route power and data into isolated environments. Typically cylindrical, the fitting assemblies allow for connections to be established between the vacuum chamber interior and exterior in a manner that prevents leakage into the chamber. Applications needing quick connections or disconnections on one or both sides of the chamber wall require bulkhead connectors. High quality helps assure complications relating to loss of signal or seal leakage are avoided. With that said, while the bulkheads are able to fulfill the aforementioned requirements of the high-wire act, there are other options available for addressing the same challenge which are potentially more advantageous under different conditions.

For some applications, epoxy sealed vacuum feedthroughs, a comparatively newer technology, provides numerous practical and technical advantages over their glass or ceramic counterparts. In the case of a feedthrough which is going to remain sealed (such as a vacuum chamber utilized for space simulation) the hermetically sealed epoxy wire feedthrough provides a great range of flexibility in design. Additionally, despite their nature as a customized product, as opposed to a regular bulkhead, the installation cost of an epoxy sealed feedthrough on a permanent installation can be advantageous. Some feedthroughs designed to pass wires from atmospheric environments to high vacuum environments are engineered to function in temperatures from -40F to 200F while paired with the industry standard wires and cables. These devices can be a marquee choice for vacuum-oriented process control thanks to their design variance and durability, even under the most challenging of industrial conditions.

Depending on the situation, either bulkheads or epoxy sealed feedthroughs can help engineers and designers combat a longstanding challenge in working with vacuum environments.

For more information visit http://www.belilove.com/feedthroughs or call (510) 274-1990.

Cerawatt Ceramic Electric Heating Element by BCE

CeraWatt ceramic heating elements

CeraWatt ceramic heating elements are composed of high temperature materials such as tungsten and alumina ceramic substrates. The metal heating resistance element is thickfilm technology. CeraWatt heaters provide excellent corrosion resistance, high operating temperature, long life, energy efficiency, uniform surface temperatures, and outstanding thermal conductivity.

Features

• Fittings are available as NPT, SAE, BSP & VCR. 
• Maximum Operating Temperature: 800°C. 
• Operating voltages: 60V, 150W 
• 90V, 350W 
• 120V, 625W. 
• Compact, durable & highly efficient heat exchange.

BCE PCB Mounted Epoxy Vacuum Feedthroughs

BCE is a leading manufacturer of printed circuit board mounted vacuum feedthroughs.

New epoxy compounds have been developed that rival glass and ceramic in performance. BCE is at the forefront of this development and leverages modern epoxy's unique properties to solve your feedthrough challenges.

FEATURES:

• Custom shapes, angles and conductors no problem.
• Run wires (and shielding), pneumatic tubing, or fiber-optic cables.
• Cost effective compared to glass and ceramic.
• Short runs and prototypes available quickly.
• Meets NASA specs on outgassing.
• Clear epoxy allows for visual inspection.
• Mounting directly to printed circuit boards and flex-circuits.
• Eliminates voltage drop or contact resistance.

Visit http://www.belilove.com/feedthroughs for more information.

BCE Flanged Gas Heater (Custom Electric Heating Element)

Here is an example of BCE's custom heating element design and manufacturing capabilities. This is their flanged gas heater.

Some of the design features are:

• Heat gasses to 400°C - 450°
• Body welded to pass 10⁻⁸ vacuum
• All 304 SST materials (other available).
• RoHS compliant parts and components.
• Embedded thermocouple probe.
• Can be used in gas chromatography and other applications.
• Wire length/type are customer specified.

For more information visit http://www.belilove.com or call (510) 274-1990.

Doser Purging System Heating Element

Doser Purging System
Heating Element

Gaseous nitrogen is used in the food and beverage industry to remove oxygen from products, thus increasing shelf life. The handling of liquid nitrogen through the piping and the injection systems that deliver the "nitrogen dose" into food and beverage containers presents unique challenges.

For food & beverage producers, lost production is calculated in downtime. Moisture and freeze-ups are the main contributor to downtime with production line gas dosing systems.  It takes only a very small amount of moisture to freeze up and stop equipment. It’s imperative maintaining reliable and productive dosing process and overcome moisture and frost contamination. The start-up and shut-down times for the dosing systems are another critical area for production efficiency when you consider many dosing systems requiring thaw periods of up to 24 hours.

BCE is pioneering the design of an electric heating element used in purging systems for nitrogen dosers. Heated purging systems remove moisture that migrates into the dosing system and cause freeze-ups, leading to poor operation or complete shut downs of the dosing system.

The purge heater is designed to heat a dry nitrogen gas supply to approximately 125 degrees F., which in turn, is piped to the doser system as an accelerant to thaw and dry the unit very rapidly. Depending on the dosing system, the net effect of using a purge heater is dramatic, with thawing and drying times reduced by 75%.

Key Benefits of Using an Electric Purge Heater

• Better, more efficient control over moisture. 
• 75% reduction in purge time. 
• 66% reduction in start-up time. 
• Cost savings from using less gas due to shorter purge times.

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