China Custom Greenhouse Automatic Vent Opener near me shop

Product Description

Computerized Vent Opener  for greenhouse
1)  Maximum load: 7 kg – most panes greenhouses do not exceed this weight
two) Adjustment of the temperature: from 15 to 25 ° C
3) 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     Automatic greenhouse window openers

one. Fully automatic greenhouse ventilation

2.Heat activated

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

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

5.Easy fitting by clamps or screws provided

6.No batteries or electricity required   


Based mostly on thermostat in which liquid greatly expands or shrinks relying on the temperature.

In the sunlight, the temperature increases in a hothouse, thermostat positioned there in is heated,

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

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

and the ventilator closes below its possess bodyweight.

Thus pane rises to 45 centimeters.

This technique enables automatic ventilation greenhouses start airing a temperature of sixteen °,and twenty five °.

The highest length of the stem rises at 30C.


Single-phase motors have a stator. They do not have the rotating magnetic field characteristics of polyphase or polyphase motors. The magnetic field produced by the stator windings is pulsating, not rotating. When the rotor is stationary, the growth and contraction of the stator’s magnetic subject develop an electrical recent in the rotor. The recent makes the rotor magnetic discipline with the opposite polarity to the stator magnetic field. The opposite polarity applies rotational force to the higher and decrease elements of the rotor. Since this pressure passes by way of the middle of the rotor, it remains equivalent in every direction, trying to keep the rotor stationary. If the rotor starts to switch, it continues to flip in the route it started, simply because the rotor’s momentum results in a rotational pressure in that course. One-period motors are utilised in reduced-power purposes this kind of as ceiling followers, mixer grinders, and home appliances these kinds of as portable energy tools.
Synchronous motors operate at a pace that is synchronous with the frequency of the mains existing. This indicates that in the continual-point out of the motor, the rotation of the shaft is synchronized with the frequency of the provide present. The interval of rotation of the shaft is equivalent to the variety of AC cycles. The stator of a synchronous motor has polyphase AC electromagnets. These electromagnets make a magnetic area that rotates in synchrony with the existing in the wire. The rotor geared up with everlasting magnets or electromagnets rotates synchronously with the stator magnetic subject to form the 2nd synchronous rotating magnetic field of the AC motor.

China Custom Greenhouse Automatic Vent Opener     near me shop