China manufacturer High Quality Automatic Venter Opener wholesaler

Item Description

Automated Vent Opener  for greenhouse

one)  Maximum load: 7 kg – most panes greenhouses do not exceed this weight
2) 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.  
1. Fully automatic greenhouse ventilation
2.Heat activated
three.Fully adjustable to open between -15-25 C
4.Suitable for windows up to 7kg( 15lbs  )
five.Easy fitting by clamps or screws provided
six.No batteries or electricity required   
Dependent on thermostat in which liquid drastically expands or shrinks relying on the temperature.
In the sunshine, the temperature increases 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 decrease in temperature in the greenhouse in thermostat fluid is compressed,
and the ventilator closes under its possess bodyweight.
Therefore pane rises to forty five centimeters.
This technique enables computerized ventilation greenhouses commence airing a temperature of 16 °,and twenty five °.
The highest length of the stem rises at 30C.


Solitary-section motors have a stator. They do not have the rotating magnetic field attributes of polyphase or polyphase motors. The magnetic field created by the stator windings is pulsating, not rotating. When the rotor is stationary, the expansion and contraction of the stator’s magnetic discipline develop an electrical recent in the rotor. The present generates the rotor magnetic area with the opposite polarity to the stator magnetic field. The reverse polarity applies rotational force to the upper and decrease components of the rotor. Given that this pressure passes by way of the center of the rotor, it stays equivalent in each and every route, trying to keep the rotor stationary. If the rotor begins to flip, it proceeds to switch in the direction it began, due to the fact the rotor’s momentum produces a rotational drive in that course. One-period motors are utilized in low-energy applications this sort of as ceiling enthusiasts, mixer grinders, and home appliances this sort of as transportable electrical power instruments.
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China manufacturer High Quality Automatic Venter Opener     wholesaler