Salve. Avevo letto tempo addietro sul forum le discussioni sulla ricarica fai da te delle bombolette di gas, e mi ero fatto un'opinione personale che fosse un'operazione pericolosa che non valeva il risparmio che si poteva ottenere.
Oggi invece sul web sono incappato sull'ennesima cinesata che mi ha fatto riconsiderare l'argomento, visto che i rischi "sembrerebbero" ridotti in parte dai minori volumi in gioco, sempre che l'operatore facesse l'operazione in condizioni di sicurezza sapendo quel che fa e cosa potrebbe accadere;
ovviamente bisognerebbe valutare il rendimento di una simile operazione, che teoricamente dovrebbe aggirarsi a metà del contenuto della bomboletta di alimentazione meno le perdite dovute ai volumi morti e all'operazione di travaso, diciamo circa a un terzo ad essere ottimisti.
Voi cosa ne pensate?
p.s.: NOTA BENE: stiamo parlando dell'argomento solamente a un livello teorico, non mi prendo nessuna responsabilità su chi volesse provarlo personalmente, né metterò link d'acquisto.
Le istruzioni a corredo sono le seguenti:
Guidelines for use below (also see photos)
1) Weigh unused full butane canister and write with felt-tip on the base.
2) Place empty canister to be refilled in freezer for approx. half hour or overnight.
3) Remove canister from freezer and place adaptor onto the canister.
4) Take your new full butane canister and insert into adaptor.
5) Push canister firmly down for 10-15 seconds at a time, checking each time the weight of the canister until it matches the original weight written on the base.
Important Notes:-
1)If you exceed the original weight of the canister you can expel the excess gas by turning the canister upside down, facing towards the floor, and push the adaptor in by hand, then check weight.
2)This is very important as exceeding the original weight of the gas in the canister, reduces the amount of space within the canister for the gas to expand. Failure to do this will mean the stove will spit out liquid gas during use until the pressure in the canister is reduced sufficiently.
3)After you have refilled the canister it is always good safety practice to check the seal on the canister for no leaks.
Only refill your canisters in a well ventilated area, i.e. outdoors
Why we need this adapter:
Popular gas cannisters found in here are either Lindal Valve Screw which is used for EN 521 appliances or Cassette gas cannister that is commonly use on steamboat stove.
For most mountaineers here, they still prefer to use Lindal screw stove. The reasons are simplicity, these stoves burn better in high attitude, they are easier to setup and they can pack together with the cook sets.
However these Lindal screw stove cannister do not come cheap, cheapest 230g is around NT70 (USD2.30) but the Cassette Gas cannister 220g of 3 cans cost only NT90 (USD3.00). To use the Cassette Gas cannister would be cheaper. A solution to this problem will be ideal to fill cassette gas cannister into Lindal screw cannister. Here is a product that is capable of doing this task.
Oggi invece sul web sono incappato sull'ennesima cinesata che mi ha fatto riconsiderare l'argomento, visto che i rischi "sembrerebbero" ridotti in parte dai minori volumi in gioco, sempre che l'operatore facesse l'operazione in condizioni di sicurezza sapendo quel che fa e cosa potrebbe accadere;
ovviamente bisognerebbe valutare il rendimento di una simile operazione, che teoricamente dovrebbe aggirarsi a metà del contenuto della bomboletta di alimentazione meno le perdite dovute ai volumi morti e all'operazione di travaso, diciamo circa a un terzo ad essere ottimisti.
Voi cosa ne pensate?
p.s.: NOTA BENE: stiamo parlando dell'argomento solamente a un livello teorico, non mi prendo nessuna responsabilità su chi volesse provarlo personalmente, né metterò link d'acquisto.
Le istruzioni a corredo sono le seguenti:
Guidelines for use below (also see photos)
1) Weigh unused full butane canister and write with felt-tip on the base.
2) Place empty canister to be refilled in freezer for approx. half hour or overnight.
3) Remove canister from freezer and place adaptor onto the canister.
4) Take your new full butane canister and insert into adaptor.
5) Push canister firmly down for 10-15 seconds at a time, checking each time the weight of the canister until it matches the original weight written on the base.
Important Notes:-
1)If you exceed the original weight of the canister you can expel the excess gas by turning the canister upside down, facing towards the floor, and push the adaptor in by hand, then check weight.
2)This is very important as exceeding the original weight of the gas in the canister, reduces the amount of space within the canister for the gas to expand. Failure to do this will mean the stove will spit out liquid gas during use until the pressure in the canister is reduced sufficiently.
3)After you have refilled the canister it is always good safety practice to check the seal on the canister for no leaks.
Only refill your canisters in a well ventilated area, i.e. outdoors
Why we need this adapter:
Popular gas cannisters found in here are either Lindal Valve Screw which is used for EN 521 appliances or Cassette gas cannister that is commonly use on steamboat stove.
For most mountaineers here, they still prefer to use Lindal screw stove. The reasons are simplicity, these stoves burn better in high attitude, they are easier to setup and they can pack together with the cook sets.
However these Lindal screw stove cannister do not come cheap, cheapest 230g is around NT70 (USD2.30) but the Cassette Gas cannister 220g of 3 cans cost only NT90 (USD3.00). To use the Cassette Gas cannister would be cheaper. A solution to this problem will be ideal to fill cassette gas cannister into Lindal screw cannister. Here is a product that is capable of doing this task.