Selling spare withdrawal device that fits Taylor Wharton 25L & 35L. This unit came with my 50L dewar that I bought on ebay. After filling a few times, I thought that the pressure relief valves might not be working, since pressure kept building on the dewar. I relief valve is adjustable and I set it to 10psi. The only way I was able to keep the pressure from building was to set it at 10 psi, but it constantly vented from the relief valve. As a result, LN2 didn't last very long.
I ended up buying an actual Taylor Wharton withdrawal device from a friend for a good price and the same thing happens. After contacting TW, I've come to the conclusion that my dewar has vacuum issues and that's pressure builds so quickly.
Asking price is $100 for the withdrawal device. I believe all parts are Swagelok
Heatware
and picture of it installed on my dewar for reference.
I ended up buying an actual Taylor Wharton withdrawal device from a friend for a good price and the same thing happens. After contacting TW, I've come to the conclusion that my dewar has vacuum issues and that's pressure builds so quickly.
Asking price is $100 for the withdrawal device. I believe all parts are Swagelok
Heatware
and picture of it installed on my dewar for reference.
