– The products have passed ISO9001 and CE certification.
– The valve life is guaranteed for 5 years.
– We provide one-stop sourcing service for you.
– The dozens of series of ball valves, butterfly valves, electric actuators, pneumatic actuators, and accessories.
COVNA company main produce: Pneumatic Actuator High Pressure Ball Valve
> The flow resistance is small, and the full-diameter ball valve has substantially no flow resistance.
> The structure is simple, small in size and light in weight.
> Tight and reliable. It has two sealing faces. At present, the ball valve has a wide sealing surface material and good sealing performance, which can achieve complete sealing. It has also been widely used in vacuum systems.
> Easy to maintain. The ball valve has a simple structure, and the sealing ring is generally movable, and it is convenient to disassemble and replace.
> When fully open and fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium does not cause erosion of the sealing surface of the valve.
Features of Actuators
• Heavy duty Rack and plnlon design
• Spring return or double acting
• Open and closed adjustment stops
• True NAMUR accessory and ISO mounting
• Visual indicator, Top Mount indicator
• High temperature and corrosion resistant models available
• Solenoids, limit switches, positioners and other accessories are available
• Fully adjuatable limit swiches ailow for fine control of on-off positions
• All electric actuators are available for modulating (4-20mA control) or on-off service
• Motor has thermal overload protection
• Running Time: 9s/13s/15s/30s/50s/100s/150s
• Heavy-duty gear train motor with permanent lubrication ISO bottom mounting for direct mount actuation with ture ISO valves on most models
COVNA company main produce: Pneumatic Actuator High Pressure Ball Valve