[labnetwork] Heat tape recommendation?

[Dennis Schweiger]

Michael,

I've used this product for heating gas lines at other sites with success.
Here at UofM we don't have any heat tracing on our gas lines.

https://www.watlow.com/Products/Heaters/Gas-Delivery-and-Exhaust-Heaters/Stretch-To-Length

Dennis Schweiger
University of Michigan/LNF

734.647.2055 Ofc


On Thu, Nov 17, 2022 at 1:12 PM Martin, Michael <
michael.martin at louisville.edu> wrote:

> Hello,
>    We are about to re-wrap our BCl3 line with heat tape and insulation and
> are in need of some advice.   In the past we have used the rather expensive
> silicone constant wattage heaters with adjustable power control
> https://www.mcmaster.com/heat-tape/constant-wattage-heaters-with-adjustable-temperature-control-for-pipes-and-tubes/
> .  The problem we have is that these do not seem to last very long before
> burning out, and as I mentioned are quite expensive. Does anyone have a
> better solution?  Longer lasting and cheaper? I should mention that we need
> only to keep the tubing at maybe 30C to prevent condensation of the BCl3
> vapor.
>
> <https://www.mcmaster.com/heat-tape/constant-wattage-heaters-with-adjustable-temperature-control-for-pipes-and-tubes/>
> McMaster-Carr
> <https://www.mcmaster.com/heat-tape/constant-wattage-heaters-with-adjustable-temperature-control-for-pipes-and-tubes/>
> McMaster-Carr is the complete source for your plant with over 595,000
> products. 98% of products ordered ship from stock and deliver same or next
> day.
> www.mcmaster.com
>    I was looking at self-regulating heat tapes used to prevent pipes from
> freezing (an interesting technology in its own right) but am not sure they
> operate above room temperature given their intended application.
> https://www.thecarycompany.com/temperature-control/heating-cables/self-regulating-cables?temp_voltage=157510
> The nice thing about these is that they evidently last for years.
>
> <https://www.thecarycompany.com/temperature-control/heating-cables/self-regulating-cables?temp_voltage=157510>
> Self-Regulating Heating Cables
> <https://www.thecarycompany.com/temperature-control/heating-cables/self-regulating-cables?temp_voltage=157510>
> Automatically Adjust Your Heat Output With Self-Regulating Cables! Keep
> your pipes from freezing with our Self-Regulating Heating Cables. The
> cables automatically adjust heat output based on the surface temperature
> and can also be great for low-temperature process maintenance. The
> flexibility of the cables can help you get even the most hard to heat
> applications. Options thermoplastic and fluropolymer jackets as well as
> tinned copper braid outside finishes. Whether you need low, medium, or high
> temperature cables, shop and compare all of our selection to find the best
> fit for you!
> www.thecarycompany.com
> Also, do you have any recommendations for insulating tubing in a cleanroom
> environment?
>
> Regards,
>    Michael
>
> Senior Process Engineer
>
> Micro/Nano Technology Center
>
> University of Louisville
> (502) 552-1945
>
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