Power Section Specification (Metric)
212-3435
54 mm 3:4 Lobes 3.5 Stages
Rotor Specifications
Overall Length 2289.3 mm
Avg. Diameter 26.37 mm
Contour Length 2184.4 mm
Eccentricity 3.29 mm
Major Diameter 32.94 mm
Head Diameter 38.10 mm
Head Length 104.9 mm
Weight 10 kg
Thread Form M16-Mfg only
Stator Specifications
Overall Length 2419.3 mm
Tube OD 44.45 mm
Contour Length 2159.0 mm
Tube ID 130.17 mm
Rubber Cut-back
Side 1: 130.0 mm
Side 2: 130.0 mm
Weight 16 kg
Material Alloy Steel
Performance Specifications
Flow Range 238-477 LPM
Rev per Unit Volume 1.84 Rev/L
Speed Range 437-875 RPM
No Load Pressure Loss 1096 kPa
  XTH RTP
Max Rec Press 5,420 kPa 4,920 kPa
Torque @ Max Press 440 N-m 400 N-m
Stall Pressure 8,120 kPa 7,380 kPa
Stall Torque 660 N-m 600 N-m
Stator Minors and Fit (mm) at 21°C
  RTP XTH
Group Minor Fit Minor Fit
4 26.75 -0.38 26.75 -0.38
Reline Lengths (mm) Max 2419 Min 2267 Alternate Stator OD (mm): - / -
Torque
Differential Pressure (kPa) 0 2,000 4,000 6,000 Torque (Nm) 0
Fit Increase
Change in Temperature (°C) 0 100 200 Fit Increase (mm) 0
Speed
Differential Pressure (kPa) 0 5,000 Speed (RPM) 0 1,000
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) 0 200 400 600
Fit Increase
Change in Temperature (°C) 0 50 100 150 200 Fit Increase (mm) 0 0.5 1 1.5
Speed
238 LPM 358 LPM 477 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 Speed (RPM) 0 200 400 600 800 1,000
Mechanical Power
238 LPM 358 LPM 477 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 Mechanical Power (Kw) 0 10 20 30 40
©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.