Boart Longyear

Quick Pump-in Head Assembly for Underground Drilling

The Quick Pump-In head now features all of the advances of the surface Q system plus a range of innovations focused on productivity underground:

• Improved pump-in velocity with dual pump-in lip seals and new pump-in valve (o-rings eliminated).
• Positive latch indication with new ball and bushing pump-in valve design.
• Latching mechanism isolated from adverse in-ground fluid or gas pressure with lip seals relocated below the latch retracting case.
• "EZY-loading" of the inner tube with new retracting case and link-latch mechanism eliminates loading sleeves.
• Easier unloading of inner tube in confined spaces with knuckle-head spearpoint.
• Easily converted for down-hole applications with standard surface components.
• Available in standard or thin kerf systems for A to H sizes.
• Isolated latching mechanism and dual pump-in seals eliminate the need for adapter coupling drive keys and locking coupling tangs.