Power Section Specification
962-5640
9.625" 5:6 Lobes 4.0 Stages
Rotor Specifications
Overall Length 219.50 in
Avg. Diameter 5.276 in
Contour Length 212.50 in
Eccentricity 0.450 in
Major Diameter 6.176 in
Head Diameter 5.500 in
Head Length 7.00 in
Weight 1436 lb
Thread Form 4" API FH
Stator Specifications
Overall Length 228.00 in
Tube OD 9.62 in
Contour Length 210.00 in
Tube ID 7.875 in
Rubber Cut-back
Side 1: 9.00 in
Side 2: 9.00 in
Weight 1706 lb
Material Alloy Steel
Performance Specifications
Flow Range 600-1200 GPM
Rev per Unit Volume 0.11 Rev/Gal
Speed Range 65-130 RPM
No Load Pressure Loss 158 psi
  POB
Max Rec Press 880 psi
Torque @ Max Press 22,180 ft-lbs
Stall Pressure 1,320 psi
Stall Torque 33,270 ft-lbs
Stator Minors and Fit (in) at 70°F
  POB
Group Minor Fit
0 5.256 0.020
Reline Lengths (in) Max 228 Min 222 Alternate Stator OD (in): 11.250 / -
Torque
Differential Pressure (psi) 0 500 1,000 Torque (ft-lb) 0
Fit Increase
Change in Temperature (°F) 0 100 200 300 Fit Increase (in) 0
Speed
Differential Pressure (psi) 0 500 1,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (psi) 0 1,000 Mechanical Power (hp) 0
Torque
Differential Pressure (psi) 0 200 400 600 800 1,000 1,200 Torque (ft-lb) 0 10,000 20,000 30,000
Fit Increase
Change in Temperature (°F) 0 50 100 150 200 250 300 350 Fit Increase (in) 0 0.05 0.1 0.15
Speed
600 GPM 900 GPM 1200 GPM Differential Pressure (psi) 0 200 400 600 800 1,000 1,200 Speed (RPM) 0 50 100 150
Mechanical Power
600 GPM 900 GPM 1200 GPM Differential Pressure (psi) 0 200 400 600 800 1,000 1,200 1,400 1,600 Mechanical Power (hp) 0 200 400 600
©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.