China best Automatic Vent Opener for Greenhouse Two Pieces Type near me factory

Merchandise Description

Automatic Vent Opener  for greenhouse
one)  Maximum load: 7 kg – most panes greenhouses do not exceed this weight
two) Adjustment of the temperature: from 15 to 25 ° C
three) Shipping Weight: 0.5 kg
Based on termotsilindr in which liquid greatly expands or shrinks depending on the temperature.
In the sun, the temperature increases in a hothouse, termotsilindr located there in is heated, the fluid pushes the piston and the piston, in turn, opens the window.
At sunset and a decrease in temperature in the greenhouse in termotsilindre fluid is compressed, and the ventilator closes under its own weight.
Thus pane rises to 45 centimeters.
This system enables automatic ventilation greenhouses begin airing a temperature of 16 °, and 25 °.
The maximum length of the stem rises at 30 ° C.  

   Window Opener Greenhouse  

                                Automated greenhouse window openers

1. Fully automatic greenhouse ventilation

two.Heat activated

3.Fully adjustable to open between -15-25 C

4.Suitable for windows up to 7kg( 15lbs  )

five.Easy fitting by clamps or screws provided

6.No batteries or electricity required   


Based on thermostat in which liquid significantly expands or shrinks based on the temperature.

In the sun, the temperature raises in a hothouse, thermostat found there in is heated,

the fluid pushes the piston and the piston, in switch, opens the window.

At sunset and a lessen in temperature in the greenhouse in thermostat fluid is compressed,

and the ventilator closes under its own fat.

Thus pane rises to forty five centimeters.

This system permits automated air flow greenhouses begin airing a temperature of sixteen °,and twenty five °.

The optimum duration of the stem rises at 30C.



An AC motor is a variety of motor that makes use of the phenomenon of electromagnetic induction. AC energy drives the motor. It is a recent that periodically reverses direction and modifications its magnitude of the existing in excess of time. This recent is the opposite of a direct recent or “DC” which flows in only one particular course. AC motors can supply a relatively effective way to produce mechanical power from a easy electrical input signal.
Single-period motors have a stator. They do not have the rotating magnetic area qualities of polyphase or polyphase motors. The magnetic area created by the stator windings is pulsating, not rotating. When the rotor is stationary, the enlargement and contraction of the stator’s magnetic discipline produce an electrical current in the rotor. The recent creates the rotor magnetic field with the reverse polarity to the stator magnetic area. The reverse polarity applies rotational power to the higher and lower areas of the rotor. Considering that this power passes by way of the heart of the rotor, it remains equal in each route, retaining the rotor stationary. If the rotor starts to flip, it continues to change in the course it commenced, due to the fact the rotor’s momentum results in a rotational force in that route. Single-phase motors are used in low-energy programs these kinds of as ceiling fans, mixer grinders, and home appliances this sort of as moveable power resources.

China best Automatic Vent Opener for Greenhouse Two Pieces Type     near me factory