Hypertherm HyPrecision Predictive P-15 Operator's Manual page 190

8 – Pump specifications
Hydraulic fittings
NPT
Hypertherm recommends thread sealant for all NPT fittings.
Size
(inch)
1/4
3/8
1/2
3/4
1
1-1/4
1-1/2
This table shows maximum values. The torque necessary to make a sufficient seal depends on the condition
of the pipe threads and can be much lower than the maximum.
190
Standard
(75% of standard maximum)
N∙m lbf ∙ ft
34 25
47 35
61 45
75 55
88 65
108 80
129 95
HyPrecision Predictive waterjet pump Operator Manual 810120
Maximum torque value
with thread sealant
N∙m lbf ∙ ft
26 19
35 26
46 34
56 41
66 49
81 60
96 71
for a male tapered pipe
thread with a female straight
or parallel pipe thread
(50% of standard maximum)
N∙m lbf ∙ ft
18 13
24 18
31 23
38 28
45 33
54 40
65 48