Massive Selection for TU-3A01 thermal wax actuator for electric switch valve for Kyrgyzstan Factories
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Massive Selection for TU-3A01 thermal wax actuator for electric switch valve for Kyrgyzstan Factories 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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This is an update from my original Automatic Temp Controller for UDS Smoker. Additional info:
PID controller: https://www.auberins.com/index.php?main_page=product_info&cPath=1&products_id=83
Thermocouple connectors: https://www.auberins.com/index.php?main_page=product_info&cPath=7_43&products_id=119
K-Type thermocouple sensor: https://www.auberins.com/index.php?main_page=product_info&cPath=20_3&products_id=173
Power switch: scavenged from electronics around house
Power connector: Depends on power source, got this one from Radio Shack
Blower motor connector and jacks – 1/8″ mono headphone, Radio Shack: https://www.radioshack.com/product/index.jsp?productId=2103453
Blower motor plug: https://www.radioshack.com/product/index.jsp?productId=2062452
Power supply: 12V, 1A or higher. I used one I had lying around house. You could use something similar to this: https://www.auberins.com/index.php?main_page=product_info&cPath=7_35&products_id=204
Contact me if you have questions.
I explain the heat operated Honeywell fan and limit switch used on early gas furnaces. This video is part of the heating and cooling series of training videos …






