One of the most important reasons for the operation failure of the fire door closer is the selection of inappropriate hydraulic oil. Therefore, a good fire door closer must select the appropriate hydraulic oil according to the product positioning, so as to improve the reliability of the fire door closer, extend the service life of the door closer system and components, and help the fire door Safe operation.
Here is how to choose the right hydraulic oil for door closers:
First, consider the working environment conditions of the door closer
The selection of hydraulic oil for the door closer should take into account the working environment and working conditions of the hydraulic system of the door closer (the pressure and temperature at which the hydraulic device is working). Among them, the working environment of the hydraulic system is mainly considered: whether it is used indoors or in the open air, the temperature change is large or the temperature difference is small, whether there is an extreme low temperature or an extreme high temperature, whether the working environment is humid, whether it is near a high temperature heat source or an open flame, etc.
Second, consider the appropriate hydraulic oil viscosity of the door closer
After selecting the type of door closer hydraulic oil, the viscosity of the selected door closer hydraulic oil should also be determined. The viscosity of the hydraulic oil of the door actuator mainly depends on the starting speed requirement, the working temperature of the hydraulic system and the type of pump used.
Third, consider the cost-effectiveness of hydraulic oil for door closers
Consider the selection of hydraulic oil for door closers. A very important indicator is the economy of the selected hydraulic oil, that is, the cost performance. The prices of similar products produced by different hydraulic oil manufacturers are different. We have to consider the cost-effectiveness of different hydraulic oils from different manufacturers, and we must choose the right one instead of the expensive one. On the basis of considering economic benefits, you can choose hydraulic oil with better quality as much as possible. At present, there are many fake and inferior door closer hydraulic oils on the market, the price is very cheap, but the quality is very poor, and it does not meet the requirements of use, causing the problem of door closer equipment failure, and once the hydraulic system of the fire door closer, Basically, this door closer can only be replaced, but it will bring greater after-sales costs.