Power Section Specification
675-7864 (M)
6.75" 7:8 Lobes 6.4 Stages
Rotor Specifications
Overall Length 232.50 in
Avg. Diameter 3.940 in
Contour Length 225.50 in
Eccentricity 0.243 in
Major Diameter 4.425 in
Head Diameter 4.000 in
Head Length 7.00 in
Weight 782 lb
Thread Form 2 7/8" API Reg
Stator Specifications
Overall Length 250.00 in
Tube OD 6.75 in
Contour Length 234.00 in
Tube ID 5.500 in
Rubber Cut-back
Side 1: 8.00 in
Side 2: 8.00 in
Weight 939 lb
Material Alloy Steel
Performance Specifications
Flow Range 300-750 GPM
Rev per Unit Volume 0.30 Rev/Gal
Speed Range 91-228 RPM
No Load Pressure Loss 176 psi
  POB XTH PRR
Max Rec Press 1,520 psi 1,670 psi 1,520 psi
Torque @ Max Press 13,150 ft-lbs 14,460 ft-lbs 13,150 ft-lbs
Stall Pressure 2,280 psi 2,500 psi 2,280 psi
Stall Torque 19,720 ft-lbs 21,690 ft-lbs 19,720 ft-lbs
Stator Minors and Fit (in) at 70°F
  POB XTH
Group Minor Fit Minor Fit
0 3.944 -0.004 3.944 -0.004
Reline Lengths (in) Max 250 Min 244 Alternate Stator OD (in): 7.000 / -
Torque
Differential Pressure (psi) 0 1,000 2,000 Torque (ft-lb) 0
Fit Increase
Change in Temperature (°F) 0 100 200 300 Fit Increase (in) 0
Speed
Differential Pressure (psi) 0 1,000 2,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (psi) 0 1,000 2,000 Mechanical Power (hp) 0
Torque
Differential Pressure (psi) 0 500 1,000 1,500 2,000 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 525 GPM 750 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 Speed (RPM) 0 100 200 300
Mechanical Power
300 GPM 525 GPM 750 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 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.