Swagelok 8HPH Series, User Manual

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18 Series 8HPH Weld Head User’s Manual
Caution!
Do not use tack programs or
programs that include tacks with the
series 8HPH weld head .
Caution!
Do not use step programs with the
series 8HPH weld head .
Performing a Weld
Operate the weld head using the following parameters:
Series 8HPH
Shield gas flow rate
std ft3/hr
(std L/min)
10 to 15 ➀
(4.7 to 7.1)
Prepurge and Postpurge
minimum time in seconds
Continuous
Start Power U-low, Low, Norm ➁
Maximum Recommended
Average Amps
40 amps
➀
Set flow to higher rates when welding at high current rates.
➁
M100-1 Power Supplies with serial numbers before 2802; D100-1 Power Supplies with
serial numbers before 1425; D100-2 Power Supplies with serial numbers before 3267;
or M100-2 Power Supplies with serial numbers before 3464 and ac arc start should
use Low or U-low arc starts. All D-100-1A and D-75 units should use Low or U-low arc
starts. Power supplies with dc arc starts should use Normal for wall thickness above
0.030 in.
13-170.indb 18 2/1/13 1:46 PM