Power Section Specification
1125-7848
11.25" 7:8 Lobes 4.8 Stages
Rotor Specifications
Overall Length 235.50 in
Avg. Diameter 5.662 in
Contour Length 226.50 in
Eccentricity 0.353 in
Major Diameter 6.367 in
Head Diameter 5.500 in
Head Length 9.00 in
Weight 1679 lb
Thread Form 4.1/2"- 5 API REG
Stator Specifications
Overall Length 251.50 in
Tube OD 11.25 in
Contour Length 226.50 in
Tube ID 7.875 in
Rubber Cut-back
Side 1: 12.50 in
Side 2: 12.50 in
Weight 3671 lb
Material Alloy Steel
Performance Specifications
Flow Range 600-1200 GPM
Rev per Unit Volume 0.11 Rev/Gal
Speed Range 66-132 RPM
No Load Pressure Loss 203 psi
  POB XTH
Max Rec Press 1,140 psi 1,250 psi
Torque @ Max Press 27,220 ft-lbs 29,940 ft-lbs
Stall Pressure 1,710 psi 1,880 psi
Stall Torque 40,830 ft-lbs 44,920 ft-lbs
Stator Minors and Fit (in) at 70°F
  POB XTH
Group Minor Fit Minor Fit
0 5.634 0.027 5.628 0.034
4 5.682 -0.021 5.680 -0.018
Reline Lengths (in) Max 252 Min 246 Alternate Stator OD (in): - / -
Torque
Differential Pressure (psi) 0 500 1,000 1,500 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 1,500 Speed (RPM) 0
Mechanical Power
Differential Pressure (psi) 0 1,000 Mechanical Power (hp) 0
Torque
Differential Pressure (psi) 0 500 1,000 1,500 Torque (ft-lb) 0 10,000 20,000 30,000 40,000
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 1,400 Speed (RPM) 0 50 100 150
Mechanical Power
600 GPM 900 GPM 1200 GPM Differential Pressure (psi) 0 500 1,000 1,500 Mechanical Power (hp) 0 200 400 600 800
©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.