Important data required for multi-turn electric actuator sizing
Important data required for multi-turn electric actuator sizing
(OP)
For sizing a multi-turn electric actuator for a Knife Gate Valve:
1.Should we consider both Torque (Torque required to open & close valve i.e. seat/unseat) and Thrust (Force required to open and close the gate) or anyone of these could be enough?
2.Why do we need to know the valve stem number of Turns?
1.Should we consider both Torque (Torque required to open & close valve i.e. seat/unseat) and Thrust (Force required to open and close the gate) or anyone of these could be enough?
2.Why do we need to know the valve stem number of Turns?





RE: Important data required for multi-turn electric actuator sizing
There are actuators with a limited number of rotations, so knowing how many turns are required can be important.
RE: Important data required for multi-turn electric actuator sizing
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Important data required for multi-turn electric actuator sizing
Number of stem turns is typically related to the speed in which you open or close the valve. If you have a 1/4" pitch 1/4" lead valve stem, and you need 12 full stem turns to open the valve, you need 48 revolutions. If your actuator has 96 RPM, you can open the valve in 30 seconds.
RE: Important data required for multi-turn electric actuator sizing
RE: Important data required for multi-turn electric actuator sizing
RE: Important data required for multi-turn electric actuator sizing