Power Section Specification (Metric)
962-5640
244.5 mm 5:6 Lobes 4.0 Stages
Rotor Specifications
Overall Length 5575.3 mm
Avg. Diameter 134.01 mm
Contour Length 5397.5 mm
Eccentricity 11.43 mm
Major Diameter 156.86 mm
Head Diameter 139.70 mm
Head Length 177.8 mm
Weight 651 kg
Thread Form 4" API FH
Stator Specifications
Overall Length 5791.2 mm
Tube OD 244.35 mm
Contour Length 5334.0 mm
Tube ID 200.02 mm
Rubber Cut-back
Side 1: 228.6 mm
Side 2: 228.6 mm
Weight 774 kg
Material Alloy Steel
Performance Specifications
Flow Range 2271-4542 LPM
Rev per Unit Volume 0.03 Rev/L
Speed Range 65-130 RPM
No Load Pressure Loss 1089 kPa
  POB
Max Rec Press 6,080 kPa
Torque @ Max Press 30,070 N-m
Stall Pressure 9,120 kPa
Stall Torque 45,110 N-m
Stator Minors and Fit (mm) at 21°C
  POB
Group Minor Fit
0 133.50 0.51
Reline Lengths (mm) Max 5791 Min 5639 Alternate Stator OD (mm): 285.8 / -
Torque
Differential Pressure (kPa) 0 5,000 Torque (Nm) 0
Fit Increase
Change in Temperature (°C) 0 100 200 Fit Increase (mm) 0
Speed
Differential Pressure (kPa) 0 5,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (kPa) 0 5,000 10,000 Mechanical Power (Kw) 0
Torque
Differential Pressure (kPa) 0 2,000 4,000 6,000 8,000 Torque (Nm) 0 10,000 20,000 30,000 40,000 50,000
Fit Increase
Change in Temperature (°C) 0 50 100 150 200 Fit Increase (mm) 0 1 2 3 4
Speed
2271 LPM 3407 LPM 4542 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 Speed (RPM) 0 50 100 150
Mechanical Power
2271 LPM 3407 LPM 4542 LPM Differential Pressure (kPa) 0 2,000 4,000 6,000 8,000 10,000 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.