HANGAR DOOR TECHNICAL SPECIFICATIONS

1) GENERAL : The steel materials are produced from galvanized sheet or hot dip galvanized, and all the materials confirm the TSE standards. Prior to fabrication, all main structural sections are thoroughly cleaned, pretreated to provide a strong bond between the metal and the paint, and shop painted with a rust inhibiting primer. The UV resistant enamel top coat paint is applied over the primer. All the materials are shop painted before transportation to the field. The door parts are manufactured in the factory in order to be assembled easily without any need of cutting, drilling, welding jobs on the field. The steel frame of the sections completely consists of formed steel profiles which is a patented system and has all the strength calculations. The cladding panels are fixed securely inside of the steel frame by using the special clips profiles. The installation job consists of fixing the premanufactured material together on the field and sitting the door sections over the rails, followed by the tests. Hence, the job lasts in a very short time compared to the conventional methods.

2) BOTTOM RAILS : The bottom rails are constructed for carrying the door sections and prevent water accumulation by the help of the drainage channels inside them. Electrical heating system can be added to the rails if desired. The special designed shape of the rails prevents the vibration of the planes passing over them.

3) TOP RAILS : T-type roller bearings fixed on the top of the sections are guided by the top rails which are designed to balance the wind forces. The dust and wind leakage from outside is prevented by the rail coverage.

4) CLADDING SYSTEM : The cladding is done by fixing the special panels (which are shock resistant and transparent if desired) inside the steel frame.The cladding panels are highly resistant to weather conditions, inflammable, ensures high isolation to heat and noise, rigid, doesn't fade, and also confirms the DIN 18032 standard. The panels can be changed easily. Also aluminium or steel composite panels can be used for cladding if desired.

5) PERSONNEL DOORS : Personnel door can be installed on the main door if desired. Each personnel door is electrically interlocked to the drive system of the main door in order to prevent the main door from moving under power when the personnel door is opened. Personnel doors have panic hardware on the interior side.

6) MANUAL OPERATION : The doors can be moved manually when they are out of energy. The manual motion is not maintained by pulling or pushing the doors, but the door panels can be moved manually by turning the manual arm which makes the job very easy. The manual control system is electrically interlocked to the drive system to prevent accidents so that it is impossible to drive the system under power when the manual control is activated.

7) WIND LOADS AND THE DOOR SPEED : The door sections are designed to endure the pressure of 120 km/h speed direct wind. The opening and closing speeds of the doors are 15 m/min.

8) BOTTOM CARRYING WHEELS AND THE DRIVE : The bottom wheels are produced from 280mm cast iron or steel and they can be dismounted or changed easilly when needed.

9) THE MOTION OF THE DOOR SECTIONS : The slave sections are connected to the master section (which contains the drive system) by means of a steel shading system so that all will move simultaneously, but at different speeds, and reach their open or closed positions at the same time. The master section is driven by the all-wheel driving system.

10) SAFETY SENSORS AND WARNING DEVICES : The master sections have photocell safety sensors with minimum 50 cm perception distance which prevents the door motion if a substance stays on the rails of the door. Each master section is fitted with an audio visual alarm (appropriate to NATO standards) which operates cotinuously on the door motion. The visual alarm is a single strike xenon beacon which can be seen on daylight. The audio alarm is a high output one emitting 106 dB at one meter range.

11) CONTROL SYSTEM : The elecrical control boards are established on the master sections. The control buttons are put on the master sections to ensure that the operator will walk with the door to decrease the risk of accident. All the sections move as long as the controll button is pressed and they stop as soon as the button is released. There exist stop buttons near the control buttons to ensure the safety. The doors stop automatically when they come to their end positions and further drive is impossible. The left and right door sections can be driven independent from each other.

12) WICKS AND SEALS : The rubber wicks, seals and brushes are mounted on the suitable places of the sections to prevent the dust, dirt and wind coming from outside.