Power Section Specification (Metric)
700-8921
177.8 mm 8:9 Lobes 2.1 Stages
Rotor Specifications
Overall Length 6388.1 mm
Avg. Diameter 109.22 mm
Contour Length 6210.3 mm
Eccentricity 5.47 mm
Major Diameter 120.17 mm
Head Diameter 101.60 mm
Head Length 177.8 mm
Weight 390 kg
Thread Form 2 7/8" API Reg
Stator Specifications
Overall Length 6604.0 mm
Tube OD 177.80 mm
Contour Length 6197.6 mm
Tube ID 146.05 mm
Rubber Cut-back
Side 1: 203.2 mm
Side 2: 203.2 mm
Weight 470 kg
Material Alloy Steel
Performance Specifications
Flow Range 1136-2461 LPM
Rev per Unit Volume 0.02 Rev/L
Speed Range 26-57 RPM
No Load Pressure Loss 1241 kPa
  POB
Max Rec Press 3,550 kPa
Torque @ Max Press 20,450 N-m
Stall Pressure 5,330 kPa
Stall Torque 30,680 N-m
Stator Minors and Fit (mm) at 21°C
  POB
Group Minor Fit
1 109.45 -0.23
Reline Lengths (mm) Max 6604 Min 6452 Alternate Stator OD (mm): - / -
Torque
Differential Pressure (kPa) 0 2,000 4,000 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 Speed (RPM) 0
Mechanical Power
Differential Pressure (kPa) 0 2,000 4,000 Mechanical Power (Kw) 0
Torque
Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 Torque (Nm) 0 10,000 20,000
Fit Increase
Change in Temperature (°C) 0 50 100 150 200 Fit Increase (mm) 0 1 2 3
Speed
1136 LPM 1798 LPM 2461 LPM Differential Pressure (kPa) 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 Speed (RPM) 0 20 40 60
Mechanical Power
1136 LPM 1798 LPM 2461 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 Mechanical Power (Kw) 0 50 100
©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.