2017 China New Design TU-1J02 thermal wax actuator for electric switch valve – China Factories
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2017 China New Design TU-1J02 thermal wax actuator for electric switch valve – China 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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How to Wire a Power Window Relay
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Power windows have been around for years. For this reason, power window vehicles are still up and running especially in places with low humidity where rust is not an issue. A power window system uses a DC motor to actuate the glass and open the door windows. The DC motor works in the nominal 2 to 5 Amp current range. For this reason, a relay has almost always been used to control the motor.
The basic motor operation is done by reversing the polarity of it’s power and ground input. It is here where a properly connected window motor makes the whole arrangement worthwhile and stable. Although window motors come in various sizes, their nominal electric current range may go as high as 6 Amps, with peak voltages as much as 12 Amps if extreme resistance is found. Relays can deliver up to 40 Amps of power making them the best real world choice. Transistors have been used in the past and even on some new models, but they eventually falter and leave the driver to eat up the cost of replacement. This circuit connection is very useful due to the fact that many older vehicles can be re-wired using original or aftermarket parts, keeping the windows operational.
Here is how the window motor circuit works:
12 volt power is fed from the fuse to terminal 87 of the relay. This terminal then becomes the power input. Power is also fed to terminal 85 of the relay coil on both relays. Terminal 87A is connected directly to ground, so this terminal becomes the chassis ground input. Then, terminal 30 is wired directly to the window motor relay. Each relay feeds ……
Get the whole story right here in this video….Enjoy…
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