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7 Series High-Flow Mud Motors
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7 Series High-Flow Mud Motors

Brand: Mostar Directional Inc
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Mostar’s has completely redesigned a motor to allow for a higher flow system to achieve substantial gains in the rate of penetration in hard drilling and harsh environments.
Substantial improvements have been made to the entire bottom end to allow for higher flow but maintaining strength and durability.
Features
  • Mandrel adapter – 45% more wall 
  • Drive shaft – Shortened and strengthened 
  • Piston – 30% bigger than a 6 ¾ 
  • Multiple stackable thrust bearings 
  • API Spec thread tapered 
  • 40% more oil than 6 ¾ 
  • On bottom bearing to off bottom position 
  • Internals equivalent to an 8” mud motor 
  • Bigger Seals 
  • Custom Seals that are bigger and have more resistance to failure

Specifications

Brand

Maximum Differential Pressure

  • NBR: 980
  • NBR-HPW: 1530

Maximum Torque

  • NBR: 10,650 ft-lb
  • NBR-HPW: 16,690 ft-lb

Flow Range

  • 400 gpm - 750 gpm

Speed Range

  • 90 rpm - 170 rpm

Tube Material

  • 4140/4142 Alloy Steel

Tube O.D.

  • 7"

Tube I.D.

  • 5.75"

Documentation

Data Sheets

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