I am building a protoform vacuum forming machine. You can see the build thread here.
Anyhow, I did not have any tanks for the vacuum system, but today three of these used up helium tanks just about literally fell into my lap today. I was wondering if I could use them to plumb my vacuum former. They were from a one-use party balloon kit from a party store. I wonder if they are too weak or would need some serious re-plumbing (like welding and torch cutting) which I do not have the capacity to do.
I already have a Robinair 15600 6CFM 2-stage vacuum pump.
These three helium tanks each say 14.9 CU FT (.42 CU.M.) on them. I cannot find any other obvious strength ratings printed or stamped on them. I did find this printed on the bottle:
DOT-39 NRC 260/325 M1005
UN 1046 HELIUM, COMPRESSED
CAS# 7440-59-7
The hookup is a threaded nozzle with a plastic twist handle. The box says the manufacturer is Worthington Cylinders.
Anyhow, I did not have any tanks for the vacuum system, but today three of these used up helium tanks just about literally fell into my lap today. I was wondering if I could use them to plumb my vacuum former. They were from a one-use party balloon kit from a party store. I wonder if they are too weak or would need some serious re-plumbing (like welding and torch cutting) which I do not have the capacity to do.
I already have a Robinair 15600 6CFM 2-stage vacuum pump.
These three helium tanks each say 14.9 CU FT (.42 CU.M.) on them. I cannot find any other obvious strength ratings printed or stamped on them. I did find this printed on the bottle:
DOT-39 NRC 260/325 M1005
UN 1046 HELIUM, COMPRESSED
CAS# 7440-59-7
The hookup is a threaded nozzle with a plastic twist handle. The box says the manufacturer is Worthington Cylinders.
