Power Section Specification (Metric)
675-4570
171.5 mm 4:5 Lobes 7.0 Stages
Rotor Specifications
Overall Length 5143.5 mm
Avg. Diameter 89.20 mm
Contour Length 4965.7 mm
Eccentricity 8.99 mm
Major Diameter 107.19 mm
Head Diameter 101.60 mm
Head Length 177.8 mm
Weight 257 kg
Thread Form 2 7/8" API Reg
Stator Specifications
Overall Length 5450.8 mm
Tube OD 171.45 mm
Contour Length 4953.0 mm
Tube ID 139.70 mm
Rubber Cut-back
Side 1: 190.5 mm
Side 2: 190.5 mm
Weight 369 kg
Material Alloy Steel
Performance Specifications
Flow Range 1136-2271 LPM
Rev per Unit Volume 0.13 Rev/L
Speed Range 150-300 RPM
No Load Pressure Loss 827 kPa
  POB XTH PRR
Max Rec Press 10,240 kPa 11,270 kPa 10,240 kPa
Torque @ Max Press 11,430 N-m 12,580 N-m 11,430 N-m
Stall Pressure 15,370 kPa 16,900 kPa 15,370 kPa
Stall Torque 17,150 N-m 18,870 N-m 17,150 N-m
Stator Minors and Fit (mm) at 21°C
  PRR POB XTH
Group Minor Fit Minor Fit Minor Fit
T 88.44 0.76 88.60 0.61
0 89.28 -0.08 89.26 -0.05 89.26 -0.05
2 89.59 -0.38 89.66 -0.46
4 90.20 -0.99 90.14 -0.94
Reline Lengths (mm) Max 5451 Min 5298 Alternate Stator OD (mm): - / -
Torque
Differential Pressure (kPa) 0 10,000 Torque (Nm) 0
Fit Increase
Change in Temperature (°C) 0 100 200 Fit Increase (mm) 0
Speed
Differential Pressure (kPa) 0 5,000 10,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (kPa) 0 10,000 Mechanical Power (Kw) 0
Torque
Differential Pressure (kPa) 0 5,000 10,000 Torque (Nm) 0 5,000 10,000 15,000
Fit Increase
Change in Temperature (°C) 0 50 100 150 200 Fit Increase (mm) 0 10 20 30 40
Speed
1136 LPM 1703 LPM 2271 LPM Differential Pressure (kPa) 0 2,000 4,000 6,000 8,000 10,000 12,000 Speed (RPM) 0 100 200 300
Mechanical Power
1136 LPM 1703 LPM 2271 LPM Differential Pressure (kPa) 0 5,000 10,000 15,000 Mechanical Power (Kw) 0 100 200 300 400
©2026 NOV. All rights reserved. Except as noted, all trademarks referenced in this document are trademarks of NOV. Performance curves describe theoretical performance with 175°F (79°C) water and are for reference only. Operational fit and drilling conditions will affect performance. Operation above maximum recommended limits will reduce life. Specification data are subject to change without notice.
PS App v.