30
INSTALLATION:
(Con’t)
STANDARD AND SIPHON TYPE CO
2
GAS CYLINDERS
STANDARD TYPE (CORRECT)
SIPHON TYPE (INCORRECT)
2
1
1
3
5
2
4
6
7
3
8
1. Compressed Gas Association
1. Warning tag indicating that
#320 connector.
cylinder is siphoning type.
2. Gas headspace.
2.* Aluminum ring.
3. Liquid CO
2
filled to 68%
3.* Gold band.
equal weight of water that
4.* Stamp or marking on cylinder:
cylinder would hold at 60ºF.
"Siphon" or "Eductor Tube".
5.* Valve should be of special type for
service.
6.* Withdrawal tube draws up the liquid
CO
2
.
7.* Gas head space.
8.*
Liquid
CO
2
filled to 68% equal weight of
water that cylinder will hold at 60ºF.
*
NOTE
: SOME GAS SUPPLIERS WILL HAVE NO MARKINGS TO INDICATE AN "EDUCTOR
TUBE" OR "SIPHON" TYPE CYLINDER. BE SURE TO ORDER
DRY, LAB-GRADE CO2.
Be sure to obtain a dual-stage regulator from the gas supplier for the CO
2
tank that is to be installed according to local codes.
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