if they encounter the regulator in the process of using the stability of the phenomenon, put forward five solutions for you, the following content hope to be able to help to you.

1, change the direction of unbalanced force method: in the stability analysis, the unbalanced force with known and at the same time, the direction of valve clearance is on the valve closed trend, the poor stability. To the valve work under the condition of the unbalanced force, choose to change its direction method, often is the flow of changing the flow closed type to open type, generally can easily solve the problem of the stability of the valve.

2, avoid valve itself is not the region execution of work: some valve is limited by its own structure, working on some opening stability is poorer. Two-seater valve, the opening within 10%, because the ball away, flow closed ball, under the instability problems; Unbalanced force change near slope produces alternating, its stability is poor. Such as butterfly valves, alternating point at about 70 degrees; The two-seater valve opening in the 80 ~ 90%. Encounter this kind of valve, without region work necessarily poor stability, avoid region.

3, replace the stability good valve: change the unbalanced force is small, stability good valve guide. Commonly used in ball valve, sleeve valve has this feature. When single, two-seater valve stability is poorer, replace the sleeve valve stability will be improved.

4, increase the spring stiffness method: actuator depends on the ability to resist load changes impact on the stroke of spring stiffness and the bigger the stiffness, the smaller the impact on the trip, the better stability of the valve. Increase the spring stiffness is a common simple way to improve the stability of the valve, such as the scope of 20 ~ 100 kpa spring spring to 60 ~ 180 kpa takong spring, adopted mainly take the valve positioner, otherwise, use the valve to the other with locator.

5, to reduce the speed of response method: when the system requires the regulator response or adjustment speed should not be too fast, the response of the valve and regulating speed is faster, need to fine tune, such as flow regulating valve of flow control changes is very big, or the system itself is a rapid response system and regulating valve and a locator to speed the Industrial Valves movement, it will be unfavourable.

this will produce a overshoot, vibration, etc. To this, should reduce the response speed. Change the linear feature to logarithmic characteristics; With the locator can be changed to converter, relay.

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wedge valve has a very good repute over the global market.
have three basic components.