Hi, can you give me links to companies who sell semen storage tanks? I am looking for the tanks that only need nitro refills every 6 months....thanks
Jos Posted From: 188.8.131.52
Posted on Monday, February 02, 2004 - 10:56 pm:
I am not aware of a tank that will "hold" for 6 months without refill, but the one offered for sale by Exodus Breeders (available to view by clicking here) is good for about 20 weeks - although I would never let it go that long without filling despite the manufacturers assurances!
Anonymous Posted From: 184.108.40.206
Posted on Wednesday, February 04, 2004 - 11:41 pm:
This may be a silly question. I was given two nice liquid nitrogen tanks but they have no cannisters. Can I buy just cannisters somewhere?
Frank Berg Posted From: 220.127.116.11
Posted on Wednesday, April 14, 2004 - 01:24 pm:
Try ebay. I have bought 2 very nice tanks over the past 2 years. Taylor Wharton 34XT and a MVE Millenium SC20. You must know what you are buying... don't buy junk just to save a few bucks! Also, expect to pay less for containers with no cans. Most tanks are sold with 2-6 cans. A set of 6 cans will cost you another $180usd. If you want a new one there are a number of suppliers. Canisters will need to be bought from a supplier.
Best place to buy canisters is from MVE or a supplier in the USA. They are the easiest to get and are about $27usd each. If you live in Canada you will find it difficult to buy new canisters from the supply chain of either manufacurer and expect to be gouged for the canisters! Most canisters are interchangeable between Taylor Wharton and MVE for similar tanks. You need to know the width you want for your tank. Most tanks will accept the 1 1/2" x 11" canisters. There are larger canisters for wider mouth tanks as well.
As far as tank performance, most are close to what the manufacturers states, but you could expect a higher boil-off rate for used tanks. One of my tanks is at .1 litre/day while the other one is at .2 litre/day. I check these tanks every 1-2 weeks and am comfortable that both will make it 6 months. However, I don't fill them at the same time. As well, if you use an uninsulated (no thermal break in the wire) canister your boil-off rate will be significantly higher.
As far as filling your tank... some local agents may come to your farm or you could buy a transfer vessel or an old tank to use for this purpose. The condition of this vessel is not that important unless you plan on keeping extra liquid nitrogen on hand.
Expect to pay about $1.29/litre in Canada. I have found suppliers that charge 5 times this price, so do some shopping.
One final item about tanks... Semen straws may float out of the canisters when first inserted in the tank if they are not secured. This typically happens with bulk load transfers. It is absolutely frustrating to remove these without breaking any (narrow mouth tanks) or ensuring none suffer temperature damage during extraction. Use canes when possible and ensure there is some form of blocker to prevent the straws from escaping from the holders on the canes.
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