Instead of having to use the Print Screen button and then paste into Paint (or a similar application), you can now automatically save a screenshot to the Pictures folder as a png with just the touch of a couple of buttons. Here's how. 1.
Thermostatic expansion valve or TEV is one of the most commonly used throttling devices in the refrigerator and air conditioning systems. The thermostatic expansion valve is the automatic valve that maintains proper flow of the refrigerant in the evaporator as per the load inside the evaporator.
The thermostat is a temperature controlled valve. The spring loaded valve is attached to a small cylinder filled with thermal wax. As the engine warms up, coolant transfers heat to the wax-filled cylinder. The heat causes the cylinder to expand and pushes down on the spring loaded valve.