Door Closer 503

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 1000 Pieces pc

Supply Capability:: 50000 Pieces per Month pc/month

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1) installation dimension(length*width*height):206mm*19mm*72mm

2) suit for door weight 40~65kgs,suitable for commercial and residential buildings

3) 1 million cycles and five years guaranteed.

4) Universal application, standard, top jamb, parallel arm installation

5) Closing and latching speed controlled by two separated regulating valves.

6) finish color optional as request:silver,black,duro,gold etc.

7) UL listed

8) Optional Built-in HOLD Open type:503D

Q:At least 2 years old, because I am doing the project, you can need a large number of purchases. Others say the Internet is cheaper, but not kind, afraid of poor quality. We recommend to me.: The key is the frequency of use of the janitor

Q:How to install the door closer: Closed door installation steps: ????Usually with the door closer to provide instructions for the installation of the model, so first read the instructions, according to the direction of the door, the size of the closing force and the door closer, the connection between the seat and the door hinge to determine the installation location. ????2) Depending on the closing force size, the closing force can be changed by reversing the connecting seat by 180 ° or by changing the connection position between the connecting rod and the connecting seat. Adjust the distance between the connecting rod and the hinge centerline of the door, the smaller the closing force of the door closer, the greater the strength. ????3) Determine the position of the mounting screw according to the position indication on the mounting plate, then drill and tapping. ????4) Install the door closer with screws. ????5) Install the fixed connector. ????6) Install the drive plate with screws. ????7) Adjust the adjustment lever to 90 ° to the door frame, and then connect the connecting rod to the drive plate. ????8) Do not forget to install a plastic cover, it can be used to catch the closed door leakage of hydraulic oil. ????9) After installation, check whether the fixing screws are fastened or loose or not. Open the door to the maximum door position, check whether the hinge arm of the door closer is rubbed or rubbed against the door or door frame. ????Close the door closing speed ????10) Adjust the closing speed of the door closer as needed. Usually the door closers have two speed control (throttle spool) screws. The upper adjustment screw is the first section of the closing speed adjustment screw, and the lower adjustment screw is the second speed (usually 10?) closing speed adjustment screw. ????C, the use of door closers and maintenance, repair ????The newly installed door closers should be used for one week to about 10 days, and all screws should be checked and re-tightened again.

Q:Just bought back, do not know why the rotation of the axis does not move ... no way to install: You first use a screwdriver to adjust the valve on the door above the valve to see if you can turn

Q:How to adjust the door closing force: Adjust the closing force of the closing door is to adjust the closing speed, the strength of the fast when the speed is small, the door closers close the speed of the slow.

Q:How can we install a door closet: Parallel installation: The door closer is mounted on the door and the parallel plate is mounted on the door frame. And the door closer is mounted on the door side. This installation method is suitable for the door frame is very narrow, or almost no door frame.

Q:What do you need to install a door closer?: Parallel installation: The door closer is mounted on the door and the parallel plate is mounted on the door frame. And the door closer is mounted on the door side. This installation method is suitable for the door frame is very narrow, or almost no door frame. In accordance with this way after installation, because there is no prominent connecting rod and rocker, so more beautiful. Compared with the standard installation, this installation method is suitable for opening doors such as walls and other obstacles. This type of installation is less closed.

Q:How much is the cheapest door closer?: I have the cheapest B2 series behind closed doors, as long as 25 yuan a

Q:Do the door closers have automatic stop function?: Door closers are generally selected without positioning function of the product, the use of closed doors are generally to automatically close the door, and with positioning or stop function of the door closer price is generally about 30%, closed door function door open Angle can not be greater than 116 degrees, or easy to damage the door closer.

Q:Who knows what oil in the closer, trouble tell me about: One, generally 40 # low pour hydraulic oil. Second, the use of door closers requirements and choice Door closer products must meet the national standard GB9305-88, for the use of fire doors closed doors should also meet the GA93-1995 "door lock with fire doors test" requirements. Select the door closers should consider the factors are: the weight of the door, the width of the door, the door frequency and the use of requirements and the use of the environment. The weight of the door and the width of the door is the most important factor in choosing the door closer model, common doors are fire doors, wooden doors, aluminum doors, glass doors, steel doors and so on. Usually the weight of the door is small, select the smaller model, and vice versa. The door frequency is closely related with the product quality factors, the use of frequent occasions, the product should be required to seal the performance is better, long life.

Q:Is it hydraulic? Inside a lot of oil ah?: Is to rely on the hydraulic buffer to form a damping, in the open door when the hydraulic oil compression, the door after the opening of the hydraulic oil to release energy to close the door energy, and then through the above two screws to adjust the first paragraph and the second paragraph of the closed door speed, to achieve satisfaction The closing speed.

Our business is related to Home & Garden industry and we specifically deal in door closer. Please find our product details below: Door Closer (8000 Series) Easy to adjust the speed, all speed screws on the front side of door closer. Adjustable closing force(EN1-4 & EN 2-6), closing & latching speed are adjustable to meet the high standard demand.

1. Manufacturer Overview
Location	Zhejiang,China
Year Established	2008
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Main Markets
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Nearest Port	zhejiang
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Language Spoken:	ENGLISH,CHINESE
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