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Prevent wells from overproducing......

The Camco* type A-3 Series Velocity Safety Valve is designed to prevent wells from overproducing or blowing out in the event of an emergency. The A-3 is differential pressure-operated and set to close at a predetermined rate of flow. The A-3 can be adjusted to close at different flow rates by changing the spring, using spring spacers, and/or varying the inside diameter of the valve’s replaceable flow tube choke bean†. The A-3 Series Velocity Safety Valve is designed to operate in a “normally open” position during normal well flow, has an unlimited setting depth and, are suitable for corrosive environments. The valves are available with working pressure ratings to 10,000 psi[68,900 kPa].

The A-3 is available in a variety of materials. They feature the field-proven Camco* type flapper-closure system. This premium flapper has full, metal-to-metal sealing plus a secondary soft seat, and meets leakage acceptance criteria of API 14A.


  • Sweet to moderately corrosive environments from 40 degF to 300 degF [4 degC to 149 degC


  • Offers a versatile solution
  • Provides an unobstructed flow path and reliable production
  • Design is cost effective and easy to runAllows fewer potential leak paths
  • Reduces problems associated with solids and scale deposition.
  • Applies to a wide range of subsurface enviroments


  • Unlimited setting depths
  • Straight-through bore
  • Designed in accordance with API 14A criteria
  • Compact design
  • Minimum number of seals
  • Field-proven flapper and seat with metal-to-metal sealing
  • Optimal geometry and clearance between sliding components
  • Adjustable flow rates and closing pressures

A-3 Brochure