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ในด้านวิศวกรรม ตัวกระตุ้นมักมีการใช้เป็นกลไกเพื่อให้เกิดการเคลื่อนไหว หรือเพื่อการยึดวัตถุเพื่อป้องกันไม่ให้เคลื่อนที่ ในวิศวกรรมอิเล็กทรอนิกส์ ตัวกระตุ้นเป็นแผนกย่อยของตัวแปรสัญญาณ พวกมันเป็นอุปกรณ์ที่แปลงสัญญาณอินพุต (ส่วนใหญ่เป็นสัญญาณไฟฟ้า) ให้เป็นการเคลื่อนไหว ตัวอย่างของตัวกระตุ้น[แก้]
วิศวกรรม, การจัดซื้อจัดจ้าง, การก่อสร้าง
Like all valve this is dependent on the use scenario of your actuator, its setting, media And exactly how many times it is cycled. These are available as spare parts. The actuators lifetime will rely on how clear and dry the supply air is (the air that makes the actuator run) even so we frequently take a look at these to in excess of 800,000 cycles.
Suitable for the ball valves and butterfly valves which have increased torque needs. Higher torque around forty,000Nm
This part allows to circumvent fluid leakage once the valve is shut. The seat วาล์วติดหัวขับ serves to deliver a surface the place the disc seats in the event the valve closes.
They can be specifically suitable for rapid operation of gate valve, globe valve, damper along with other linear kind valves.
Hydraulic actuators run by using a fluid-filled cylinder by using a piston suspended at the middle. Typically, hydraulic actuators deliver linear movements, plus a spring is hooked up to one conclude to be a Portion of the return movement. These actuators are broadly found in workout devices such as steppers or automobile transport carriers.
The attribute curve of a ball valve will transfer up as DP increases mainly because of the valve closing. You can find a lot more movement at small stem motion than a chart will indicate. The ball valve’s equivalent share characteristic gets near to linear movement when เพรสเชอร์เกจ installed; determine three illustrates what transpires.
This is among the most inexpensive in the pneumatic butterfly valves. This is a pneumatic butterfly valve that's put in between two pipe flanges. Bolts are applied to connect the valve. The bolts utilised are long ample to cross the valve system.
Turndown is the same ratio as rangeability, besides the valve is put in in the system with the actuator and control signal. Turndown ratio is definitely the phrase most frequently made use of to explain a valve’s abilities.
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