Power Section Specification
675-7833
6.75" 7:8 Lobes 3.3 Stages
Rotor Specifications
Overall Length 238.50 in
Avg. Diameter 3.990 in
Contour Length 231.10 in
Eccentricity 0.255 in
Major Diameter 4.500 in
Head Diameter 4.000 in
Head Length 7.40 in
Weight 889 lb
Thread Form 2 7/8" API Reg
Stator Specifications
Overall Length 250.00 in
Tube OD 6.75 in
Contour Length 229.00 in
Tube ID 5.500 in
Rubber Cut-back
Side 1: 8.00 in
Side 2: 8.00 in
Weight 922 lb
Material Alloy Steel
Performance Specifications
Flow Range 300-700 GPM
Rev per Unit Volume 0.14 Rev/Gal
Speed Range 42-98 RPM
No Load Pressure Loss 157 psi
  POB XTH PRR
Max Rec Press 780 psi 860 psi 780 psi
Torque @ Max Press 14,570 ft-lbs 16,030 ft-lbs 14,570 ft-lbs
Stall Pressure 1,170 psi 1,290 psi 1,170 psi
Stall Torque 21,860 ft-lbs 24,040 ft-lbs 21,860 ft-lbs
Stator Minors and Fit (in) at 70°F
  PRR POB XTH
Group Minor Fit Minor Fit Minor Fit
A 3.973 0.017
0 3.979 0.011 3.980 0.010
2 3.990 0.000
4 4.016 -0.026 4.014 -0.024 4.014 -0.024
Reline Lengths (in) Max 250 Min 244 Alternate Stator OD (in): 6.500 / 7.000
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) 0 500 1,000 Mechanical Power (hp) 0
Torque
Differential Pressure (psi) 0 200 400 600 800 1,000 Torque (ft-lb) 0 5,000 10,000 15,000
Fit Increase
Change in Temperature (°F) 0 50 100 150 200 250 300 350 Fit Increase (in) 0 0.02 0.04 0.06 0.08 0.1
Speed
300 GPM 500 GPM 700 GPM Differential Pressure (psi) 0 200 400 600 800 1,000 Speed (RPM) 0 50 100
Mechanical Power
300 GPM 500 GPM 700 GPM Differential Pressure (psi) 0 200 400 600 800 1,000 1,200 Mechanical Power (hp) 0 100 200 300
©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.