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.
A pneumatic thermostat is a thermostat that controls a heating or cooling system via a series of air-filled control tubes. This control air system responds to the pressure changes (due to temperature) in the control tube to activate heating or cooling when required.