OM-250 147 Page 21
4-10. Gas Connections (STH Models)
956142809_3-6_D
1
Remove cap, stand to side of
valve, and open valve slightly.
Gas flow blows dust and dirt
from valve. Close valve.
2
Regulator/Flowmeter
Install so face is vertical.
3
Flow Adjust
Typical flow rate is 15 CFH (cubic
feet per hour) (7.1 liters per minute).
Make sure flow adjust is closed
when opening cylinder to avoid
damage to the flowmeter.
4
Gas In Fitting
Connect hose from shielding gas
supply regulator/flowmeter to gas in
fitting. Fitting has 5/8-18 right-hand
threads.
5
Gas Out Fitting
Connect shielding gas hose from
torch to gas out fitting. Fitting has
3/8-19 BSPP right-hand threads.
1
2
3
4
5
