Power Section Specification (Metric)
350-5630
88.9 mm 5:6 Lobes 3.0 Stages
Rotor Specifications
Overall Length 1873.2 mm
Avg. Diameter 48.26 mm
Contour Length 1746.2 mm
Eccentricity 3.51 mm
Major Diameter 55.27 mm
Head Diameter 57.15 mm
Head Length 127.0 mm
Weight 23 kg
Thread Form 0.75-10 UNC
Stator Specifications
Overall Length 2025.6 mm
Tube OD 88.90 mm
Contour Length 1720.8 mm
Tube ID 69.85 mm
Rubber Cut-back
Side 1: 152.4 mm
Side 2: 152.4 mm
Weight 41 kg
Material Alloy Steel
Performance Specifications
Flow Range 227-795 LPM
Rev per Unit Volume 0.70 Rev/L
Speed Range 159-559 RPM
No Load Pressure Loss 1014 kPa
  XTH RTP
Max Rec Press 5,020 kPa 4,560 kPa
Torque @ Max Press 1,020 N-m 930 N-m
Stall Pressure 7,520 kPa 6,840 kPa
Stall Torque 1,530 N-m 1,390 N-m
Stator Minors and Fit (mm) at 21°C
  RTP XTH
Group Minor Fit Minor Fit
0 47.80 0.46 47.80 0.46
4 48.34 -0.08 48.34 -0.08
7 48.72 -0.46 48.72 -0.46
Reline Lengths (mm) Max 2026 Min 1873 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) 0 500 1,000 1,500 2,000
Fit Increase
Change in Temperature (°C) 0 50 100 150 200 Fit Increase (mm) 0 0.5 1 1.5
Speed
227 LPM 511 LPM 795 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 Speed (RPM) 0 200 400 600
Mechanical Power
227 LPM 511 LPM 795 LPM Differential Pressure (kPa) 0 1,000 2,000 3,000 4,000 5,000 6,000 7,000 Mechanical Power (Kw) 0 20 40 60
©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.