Power Section Specification (Metric)
800-91027
203.2 mm 9:10 Lobes 2.7 Stages
Rotor Specifications
Overall Length 6654.8 mm
Avg. Diameter 121.55 mm
Contour Length 6464.3 mm
Eccentricity 6.09 mm
Major Diameter 133.73 mm
Head Diameter 123.19 mm
Head Length 190.5 mm
Weight 612 kg
Thread Form 3 1/2" API IF
Stator Specifications
Overall Length 6858.0 mm
Tube OD 203.20 mm
Contour Length 6451.6 mm
Tube ID 158.75 mm
Rubber Cut-back
Side 1: 203.2 mm
Side 2: 203.2 mm
Weight 720 kg
Material Alloy Steel
Performance Specifications
Flow Range 1136-3407 LPM
Rev per Unit Volume 0.02 Rev/L
Speed Range 21-63 RPM
No Load Pressure Loss 1248 kPa
  POB XTH PRR
Max Rec Press 4,720 kPa 5,190 kPa 4,720 kPa
Torque @ Max Press 31,520 N-m 34,680 N-m 31,520 N-m
Stall Pressure 7,080 kPa 7,790 kPa 7,080 kPa
Stall Torque 47,280 N-m 52,010 N-m 47,280 N-m
Stator Minors and Fit (mm) at 21°C
  PRR POB XTH
Group Minor Fit Minor Fit Minor Fit
B 121.23 0.32
T 120.80 0.75 120.90 0.65 120.90 0.65
0 121.56 -0.01 121.56 -0.01 121.56 -0.01
Reline Lengths (mm) Max 6858 Min 6706 Alternate Stator OD (mm): - / -
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 2,000 4,000 6,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (kPa) 0 5,000 Mechanical Power (Kw) 0
Torque
Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 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 0.5 1 1.5 2
Speed
1136 LPM 2271 LPM 3407 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 Speed (RPM) 0 20 40 60 80
Mechanical Power
1136 LPM 2271 LPM 3407 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 Mechanical Power (Kw) 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.