Power Section Specification
213-5660
2.125" 5:6 Lobes 6.0 Stages
Rotor Specifications
Overall Length 85.38 in
Avg. Diameter 1.062 in
Contour Length 79.13 in
Eccentricity 0.087 in
Major Diameter 1.236 in
Head Diameter 1.375 in
Head Length 6.25 in
Weight 21 lb
Thread Form M16-Mfg only
Stator Specifications
Overall Length 88.00 in
Tube OD 2.12 in
Contour Length 77.75 in
Tube ID 1.750 in
Rubber Cut-back
Side 1: 5.12 in
Side 2: 5.12 in
Weight 33 lb
Material Alloy Steel
Performance Specifications
Flow Range 20-50 GPM
Rev per Unit Volume 12.16 Rev/Gal
Speed Range 243-608 RPM
No Load Pressure Loss 74 psi
  XTH RTP
Max Rec Press 1,460 psi 1,320 psi
Torque @ Max Press 330 ft-lbs 300 ft-lbs
Stall Pressure 2,180 psi 1,980 psi
Stall Torque 500 ft-lbs 450 ft-lbs
Stator Minors and Fit (in) at 70°F
  RTP XTH
Group Minor Fit Minor Fit
0 1.070 -0.008 1.070 -0.008
4 1.075 -0.013 1.075 -0.013
7 1.079 -0.017 1.079 -0.017
Reline Lengths (in) Max 88 Min 82 Alternate Stator OD (in): - / -
Torque
Differential Pressure (psi) 0 1,000 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 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 Torque (ft-lb) 0 100 200 300 400
Fit Increase
Change in Temperature (°F) 0 50 100 150 200 250 300 350 Fit Increase (in) 0 0.02 0.04 0.06
Speed
20 GPM 35 GPM 50 GPM Differential Pressure (psi) 0 500 1,000 1,500 Speed (RPM) 0 200 400 600 800
Mechanical Power
20 GPM 35 GPM 50 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 Mechanical Power (hp) 0 10 20 30
©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.