Section 10
Specifications
20425644
5-2005/Rev 0
10-8
Table 10-5
Horsepower Requirements
Orifice Size
inches (mm)
45,000 psi
(3,103 bar)
50,000 psi
(3,447 bar)
55,000 psi
(3,792 bar)
60,000 psi
(4,137 bar)
0.003 (0.076) 1.7 2.0 2.3 2.6
0.004 (0.102) 3.0 3.5 4.0 4.6
0.005 (0.127) 4.6 5.4 6.2 7.1
0.006 (0.152) 6.7 7.8 9.0 10.2
0.007 (0.178) 9.1 10.6 12.2 13.9
0.008 (0.203) 11.8 13.9 16.0 18.2
0.009 (0.229) 15.0 17.5 20.2 23.0
0.010 (0.254) 18.5 21.6 25.0 28.5
0.011 (0.279) 22.4 26.2 30.2 34.4
0.012 (0.305) 26.6 31.2 36.0 41.0
The horsepower requirements for operating multiple orifices are determined by adding the
requirements in Table 10-5 for each orifice. Examples are shown below.
Orifice Size
inches (mm)
Number of
Orifices
Operating
Pressure
Calculation
Total
Horsepower
0.008 (0.203) 2 50,000 2 x 13.9 27.8
0.005 (0.127)
0.008 (0.203)
1
1
60,000 7.1 + 18.2 25.3
Torque Specifications
Measurements are made with lubricated components and a certified calibrated torque wrench.
Inconsistencies in wrench settings, lubrication and technique may not produce a leak free seal. If
leakage occurs, the torque can be increased to seal the components. However, do not exceed the
recommended torque value by more than 15 percent. If leakage persists, there is a component
problem.
Excessive torque can cause component damage or failure, resulting in potential
hazards to equipment and personnel.
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