In general, all elevators are powered by electric power. In some elevators, hydraulic systems are used. Hydraulic elevators have long been used in factories and warehouses. Initially, water was used as a liquid and then oil was used. Rather, the hydraulic elevators, which are used to lift loads to places that are not too high, are also widely used to transport people after 1950s. The market share of hydraulic elevators in 1980s has reached 60 percent in America and 55 percent in Europe. Today, hydraulic elevators are used more frequently in places with roof problems and to raise large loads to low heights. Such lifts can lift weights up to 4 tons. The operating system is based on the movement of the oil passing from the hydraulic unit to the piston in the pistons. The descent movement of these elevators is entirely with the weight of the cabin itself. There are different pistons according to the dimensions and capacities of the lifts. The best thing about hydraulic elevators is that there is no encounter between the floor in the case of power cuts. It is equipped with a system that can drop the load to the nearest floor.
TS EN 81-20 (ex. TS EN 81-1 + A3) periodic control and inspection of Electric Lifts, according to the "Elevator Operation, Maintenance and Periodic Control Regulation" published in the official newspaper of the Ministry of Science, Industry and Technology on 24 June 2015, before the registration procedures are carried out in order to be able to supply and at least 1 is a periodic controls.
The purpose of the Elevator Operation, Maintenance and Periodic Control Regulation is to ensure the use of elevators used for the carriage of people and / or cargoes in a manner that does not threaten the health and safety of the environment, people and living things after they are placed on the market and put into service; operating, maintenance and annual controls.
In accordance with the regulation, it is obligatory that the annual periodic controls of electric elevators are carried out by A type accredited inspection bodies. In this direction, the responsibility of the municipalities is to agree with an A-type accredited inspection body for periodic controls of electric elevators within their own municipal boundaries and to authorize this organization to perform periodic controls of electric elevators. These applications are completely implemented in order to ensure the safety of life and property of city residents.
Advantages of Hydraulic Elevators:
- Low material costs and maintenance fees
- It creates more usable space in buildings.
- Freedom in roof design and access to terrace floor
- Free choice of machine room location
- Easy transfer of the load to the building and static calculations
- Ability to meet high carrying capacity requirements
- Inexpensive work on descent
- Silent Operation
- Precise leveling (± 3mm) and automatic leveling
- In case of possible faults (power failure, phase failure, blown fuse), the elevator automatically reaches the floor
- Pulse start and stop, step speed adjustment
Disadvantages of Hydraulic Elevators
- The properties of the oil used, the temperature changes with the performance changes
- Oil leaks from underground systems can pollute water resources in the environment
- The required engine power is 2-5-3 times higher than conventional type elevators of the same speed and capacity. Although the motor runs only in the upward direction, the energy consumption is at least twice as high.
- Unknown costs in installation and maintenance and the exclusion of changing underground systems in maintenance contracts by companies incurs additional costs
Application Areas of Hydraulic Elevators
- Two, three and four-stop office buildings
- Two, three, four and five-stop apartments
- Small hospitals, clinics and medical buildings (up to 3 floor)
- Industrial buildings with low travel distance, material carrying capacity between 500 kg-560 kg
- Government buildings (up to 4 floor)
- Garage elevators of large buildings
- Service lifts
- Disabled lifts in addition to escalators
- Stage Lifts
Unsuitable Places to Use Hydraulic Elevators
- Many department stores
- Hospitals over four floors
- Structures where there is a great risk of drilling a hole
- Where electrical power is expensive or where electrical power is limited
Hydraulic elevators are used for panoramic purposes in villas, residences, renovated buildings, especially in the restoration works of historical buildings, in cases where additional load to the building statics is not desired, in the theater and opera scenes and in shopping centers. regular checks are required. According to the current legal regulations, it is a legal obligation to be checked by authorized persons such as mechanical engineers, machine technicians and high technicians at least once a year.
Our company conducts regular inspections and inspections of electric and hydraulic elevators within the scope of elevator inspections. During these activities, the Company complies with the relevant legal regulations and the standards published by domestic and foreign organizations. A few standards considered in this regard are:
- TS EN 81-3 + A1 Lifts - Safety regulations for construction and assembly - Part 3: Electrical and hydraulic service lifts
- TS EN 81-20 Safety rules for the construction and installation of elevators - Elevators for the transport of persons and goods - Part 20: Elevators of persons and goods
