1. STV-4 Series Rotary Lock Traveling Valve Eliminates ALL Gas Lock!
Stinger Oil Tools
STV-4 Series
Rotary Lock
Traveling Valve
Eliminates ALL Gas Lock!

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PRODUCT DESCRIPTION
Used In Artificial Lift Wells Which Utilize Rod Pump Configuration
Completely Replaces The Traditional Ball And Seat Traveling Valve
Upper Threads Connect Directly To The Valve Rod
Lower Threads Connect Directly To The Plunger |

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BENEFITS
Eliminates ALL GAS LOCK
Increases Production
Allows Pumping Under Extreme Bottom Pressure Without Loss of Fluid Efficiency
Reduces Operating and Well Servicing Costs
Oversized Internal Ports Allow Debris to Pass Through Valve (i.e. Sand and Paraffin) |

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VALVE PLACEMENT
Available sizes range from 1 ½” to 3 ¾”
Seating surface and valve body engineered to withstand 2 years of constant service
Units can be customized to accommodate clients’ individual production string configuration
Valve components engineered to withstand well depths of 18,000’ |

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PROVEN RESULTS
Consistent suction and fluid recovery on every stroke
Valve increased production from 25 bbls/day to 40 bbls/day
Fluid recovery dropped to 9.3 bbls until fluid filled cavity below. Gas relieved from well
Higher gas pressure 22.2 bbls
No gas lock. Valve pumped off gas instead of locking up
Graph shows consistent gas pressure relief on every down stroke |

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ELIMINATES GAS LOCK
Gas lock occurs in traditional ball and seat valves when the gas is trapped inside the valve, not allowing the ball to come off of the seat.
With the STV-4 design there is no ball and seat. It uses a patented helical spiral that actuates open and closed when pumped, regardless if gas is present. |

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INCREASED PRODUCTION
Can Increase Output 12 – 60% over Traditional Ball and Seat Valve Design
Begins Suction at a Maximum 2 Inches of Rod Movement
Increase in Fluid Production Due to Valve Closing Sooner than Conventional Ball and Seat
Pull Stroke
STV-4 Design
Needs only 2” max to create suction
Nearly full stroke of productivity
Less efficiency = lost production = less payout
Other / Standard designs
Pull Stroke
Up to 2’ before suction BEGINS |

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FLUID EFFICIENCY
Efficient Under Extreme Stress
No Issue of Ball Displacement Due to High Bottom Pressure
Engineered Rotary Locking Action Prevents High Bottom Pressure Blow-By on Upstroke
Prevents Loss of Fluid Recovery By Locking Open on Down Stroke |

9. REDUCED OPERATING COSTS
The STV-4 Eliminates These Typical Cost Factors
Typical / Frequent Workover Causes
Wear and tear on the ball and seat of traditional valves
Gas lock encountered due to cavitation and gas pocket ingestion
Frequent Service Calls Due to Inconsistent Lifts and Equipment Failures
Fatigue on Prime Movers
Tension on Traditional Stress Points |

10. COMPETITION COMPARISON
STV-4 SERIES design
Other / Standard designs
Superior Materials Used
Superior Manufacturing and Machining Processes
Eliminates Gas Lock
Reduces Operating and Well Servicing Costs
Increases Production
Increases in PROFITABILITY
60+ year design with inherent problems
Made of inferior materials
Prone to GAS LOCK
Frequent valve changes needed in H2S wells
Same output = same production
Same problems = same lost production and profits |

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STV-4 SERIES DESIGN
Unit Construction Materials
Main Body Assembly
Inconel 718 NACE - Highly Resistant to H2S
Internal Rotating Assembly
Rod and Gearing Mechanism
Seat and Rotary Surface
Tribaloy T-800 Coating – Lased Clad Welded for Hardness and Durability Against Debris Increased Longevity
Ball Bearings
17-4 H900 – Precipitation Hardened for High Strength and Good Corrosion Resistance
Silicon Nitride Ceramic – Corrosion Resistant and Wear Resistant Against Debris
Spring
Inconel X750 –Corrosion Resistant. Rated up to 700° F |