Hypertherm DynaMAX 550P - Fittings; Hydraulic fittings; NPT

Specifications
7
182 811390 Operator Manual DynaMAX 550P/560P/575P Waterjet Pump
Fittings
Hydraulic fittings
NPT
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.
WARNING
Do not tighten a fitting too much. The fitting can fail.
Some torque specifications are found on the technical drawings.
Hypertherm recommends thread sealant for all NPT fittings.
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.
Size
(inch)
Maximum torque value
Standard
With thread sealant
(75% of standard
maximum)
For a male tapered pipe
thread with a female
straight or parallel pipe
thread
(50% of standard
maximum)
N∙m lbf∙ft N∙m lbf∙ft N∙m lbf∙ft
1/4 34 25 26 19 18 13
3/8 47 35 35 26 24 18
1/2 61 45 46 34 31 23
3/4 75 55 56 41 38 28
1 88 65 66 49 45 33
1-1/4 108 80 81 60 54 40
1-1/2 129 95 96 71 65 48