The Backflow Challenge
During pipe connections, uncontrolled backflow causes:
-Bit nozzle plugging with cuttings → 4-8 hours NPT per incident
-Well control risks from underground blowouts
-Drill string corrosion from abrasive sediment ingress
Our dart-type float valve delivers:
✅ Instant 0.5-second closure upon pump stoppage
✅ 10,000psi wellbore pressure sealing capability
✅ Zero maintenance spring-less design
Technical Specifications
Parameter Specification
Pressure Rating 5,000psi & 10,000psi options
Temperature Rating -50°C to 175°C
Material Grades 4140 steel, 410/420 stainless, alloy 625
Connections API REG, IF, FH (all standard sizes)
Compliance API Spec 7-1, API RP 59
Operational Benefits
✅ Eliminate Nozzle Plugging
Zero backflow during connections → save 16 rig hours/well
Reduced bit trips from plugged nozzles
✅ Enhanced Well Control
Secondary barrier during kicks
Contains pressure inside drill string
✅ Extended Tool Life
Hard-coated dart reserves erosion
Replaceable seal rings for multiple runs
Field Applications
Deepwater Drilling: 10,000psi rating for HPHT wells
Slimhole Operations: Compact design for 3-1/2" strings
Underbalanced Drilling: Prevents gas influx up string
Geothermal Wells: High-temp elastomers for 175°C service
