Power Section Specification (Metric)
800-4553
203.2 mm 4:5 Lobes 5.3 Stages
Rotor Specifications
Overall Length 5613.4 mm
Avg. Diameter 104.38 mm
Contour Length 5435.6 mm
Eccentricity 10.55 mm
Major Diameter 125.48 mm
Head Diameter 120.65 mm
Head Length 177.8 mm
Weight 392 kg
Thread Form 3 1/2" API IF
Stator Specifications
Overall Length 5791.2 mm
Tube OD 203.20 mm
Contour Length 5384.8 mm
Tube ID 158.75 mm
Rubber Cut-back
Side 1: 203.2 mm
Side 2: 203.2 mm
Weight 620 kg
Material Alloy Steel
Performance Specifications
Flow Range 1136-3407 LPM
Rev per Unit Volume 0.07 Rev/L
Speed Range 75-225 RPM
No Load Pressure Loss 917 kPa
  POB XTH PRR
Max Rec Press 7,760 kPa 8,530 kPa 7,760 kPa
Torque @ Max Press 17,250 N-m 18,980 N-m 17,250 N-m
Stall Pressure 11,630 kPa 12,800 kPa 11,630 kPa
Stall Torque 25,880 N-m 28,460 N-m 25,880 N-m
Stator Minors and Fit (mm) at 21°C
  PRR POB XTH
Group Minor Fit Minor Fit Minor Fit
0 103.84 0.54 103.89 0.49
7 106.02 -1.64 106.04 -1.67 106.04 -1.67
Reline Lengths (mm) Max 5791 Min 5639 Alternate Stator OD (mm): 196.8 / 209.5
Torque
Differential Pressure (kPa) 0 5,000 10,000 Torque (Nm) 0
Fit Increase
Change in Temperature (°C) 0 100 200 Fit Increase (mm) 0
Speed
Differential Pressure (kPa) 0 5,000 10,000 Speed (RPM) 0
Mechanical Power
Differential Pressure (kPa) 0 10,000 Mechanical Power (Kw) 0
Torque
Differential Pressure (kPa) 0 2,000 4,000 6,000 8,000 10,000 Torque (Nm) 0 5,000 10,000 15,000 20,000
Fit Increase
Change in Temperature (°C) 0 50 100 150 200 Fit Increase (mm) 0 1 2 3 4
Speed
1136 LPM 2271 LPM 3407 LPM Differential Pressure (kPa) 0 2,000 4,000 6,000 8,000 10,000 Speed (RPM) 0 100 200 300
Mechanical Power
1136 LPM 2271 LPM 3407 LPM Differential Pressure (kPa) 0 5,000 10,000 Mechanical Power (Kw) 0 100 200 300 400 500
©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.