How to select an actuator for converting a manual gate valve (DN700) to a pneumatic type
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I would like to ask the experts here: the bottom valve of the storage tank is a manual gate valve with a DN700 size, which is quite large in diameter. I now want to convert it to use a pneumatic actuator. Could you advise me on which type of actuator would be suitable? Cylinder, curve motor type? If anyone has experience with such modifications, please share it, or recommend some manufacturers. Thank you very much.
I’ve never seen one this large; our gate valves and cylinders are all of the straight-stroke type.
For such a large scale, pneumatic options may not be able to meet the required stroke length; electric ones can be used instead.
If safety interlocks are not used, it is recommended to employ a dual-cylinder actuator, which will be smaller in size.
For the dn700 gate valve, a pneumatic motor type will be used in the final modification