Power Section Specification
375-7867
3.75" 7:8 Lobes 6.7 Stages
Rotor Specifications
Overall Length 172.00 in
Avg. Diameter 2.020 in
Contour Length 165.00 in
Eccentricity 0.125 in
Major Diameter 2.270 in
Head Diameter 2.000 in
Head Length 7.00 in
Weight 153 lb
Thread Form 1.375-5 NOIHT
Stator Specifications
Overall Length 180.00 in
Tube OD 3.75 in
Contour Length 164.00 in
Tube ID 3.000 in
Rubber Cut-back
Side 1: 8.00 in
Side 2: 8.00 in
Weight 223 lb
Material Alloy Steel
Performance Specifications
Flow Range 80-175 GPM
Rev per Unit Volume 1.62 Rev/Gal
Speed Range 129-282 RPM
No Load Pressure Loss 125 psi
  RTP PRR
Max Rec Press 1,590 psi 1,590 psi
Torque @ Max Press 2,590 ft-lbs 2,590 ft-lbs
Stall Pressure 2,380 psi 2,380 psi
Stall Torque 3,880 ft-lbs 3,880 ft-lbs
Stator Minors and Fit (in) at 70°F
  PRR RTP
Group Minor Fit Minor Fit
4 2.011 0.009 2.012 0.008
Reline Lengths (in) Max 180 Min 174 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 1,000 2,000 3,000
Fit Increase
Change in Temperature (°F) 0 50 100 150 200 250 300 350 Fit Increase (in) 0 0.02 0.04 0.06 0.08
Speed
80 GPM 128 GPM 175 GPM Differential Pressure (psi) 0 500 1,000 1,500 Speed (RPM) 0 100 200 300
Mechanical Power
80 GPM 128 GPM 175 GPM Differential Pressure (psi) 0 500 1,000 1,500 2,000 Mechanical Power (hp) 0 50 100 150
©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.