Big Discount TU-1C09 thermal wax actuator for thermostatic automatic water drain valve Export to Ghana
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Big Discount TU-1C09 thermal wax actuator for thermostatic automatic water drain valve Export to Ghana Detail:
1. Operation Principle
The Thermostatic Wax that has been sealed in shell body induces expansion by a given temperature, and inner rubber seal part drives its handspike to move under expansion pressure to realize a transition from thermal energy into mechanical energy. The Thermostatic Wax brings an upward movement to its handspike, and automatic control of various function are realized by use of upward movement of handspike. The return of handspike is accomplished by negative load in a given returned temperature.
2. Characteristic
(1)Small body size, occupied limited space, and its size and structure may be designed in according to the location where needs to work.
(2)Temperature control is reliable and nicety
(3)No shaking and tranquilization in working condition.
(4)The element doesn’t need special maintenance.
(5)Working life is long.
3.Main Technical Parameters
(1)Handspike’s height may be confirmed by drawing and technical parameters
(2)Handspike movement is relatives to the temperature range of the element, and the effective distance range is from 1.5mm to 20 mm.
(3)Temperature control range of thermal wax actuator is between –20 ~ 230℃.
(4)Lag phenomenon is generally 1 ~ 2℃. Friction of each component part and lag of the component part temperature cause a lag phenomenon. Because there is a difference between up and down curve of traveling distance.
(5)Loading force of thermal wax actuator is difference, it depends on its’ shell size.
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Fail-safe actuators are often used on crucial damper and valve applications that require protection from excessive temperatures. Back in the days when pneumatics ruled commercial HVAC controls, fail-safe protection was easy because pneumatic actuators are inherently fail-safe. When electric actuators began replacing pneumatics, however, things got more complicated. Capacitor-driven actuators now have many advantages over older spring-return electric actuators…
This shows a multilayer thin electrostatic actuator supported by lubricating oil rather than precise ball bearings for a long stroke stage. The purpose of the present research is to realize an easy-to-maintain multilayer thin electrostatic actuator having a simple structure for high-precision motion. Lubricating oil is used to support the mover, which is constructed of thin electrodes, and to reduce the friction between the mover and stator layers. Each layer of the actuator has only one simple electrode that comprises several beams. A suitable driving signal for the electrostatic actuator supported by lubricating oil was investigated experimentally. Based on the results, control systems for the electrostatic actuator using suitable driving signals were designed in order to examine the effectiveness of the actuator. The positioning results indicate that the positioning accuracy is better than 100 nm.
