How to buy a Hydraulic Door Closer

In the event of a fire, a Hydraulic Door Closer can prevent the fire from spreading and can buy more time to escape. A Hydraulic Door Closer is a common household appliance, that most of the families in the decoration of the time will use, Hydraulic Door Closer role is also clear to everyone, so in the selection of the time need to be a good gatekeeper. So how to buy Hydraulic Door Closer?

This is the list of contents：

• Function

• Selection tips

Function

1) Automatic door stop function

Hydraulic Door Closer need to open the door after the automatic stop function; how its resistance, if its resistance is too small, in closing the door when closing speed is faster, easy to cause damage to the door, but also easy to cause safety accidents.

2）Damping buffer function

Quickly open the door to a certain position to produce a damping cushion, and the damping cushion force and range can be adjusted according to the use their requirements; this function is used to prevent the door or lock from colliding with the wall when the door is opened quickly with force or to prevent people from tilting forward and falling to the ground due to weightlessness when the door is opened quickly in an emergency.

3) Time-delayed slow-closing

The door closes slowly at a constant speed from the maximum position of the door opening and can be adjusted steplessly according to requirements. Hydraulic Door Closer are suitable for use in places with frequent access and many people, especially hospitals, doors, and passages with access for the elderly, children, and disabled people.

4) Adjustable closing force

Hydraulic Door Closer can be used in different doors with a wide range of door weights and widths, as well as in places where the closing resistance is high due to environmental reasons. The random step-less adjustment allows for a satisfactory closing force, especially for use in coastal cities affected by wind.

5) Damping reset function temporary closing performance

Hydraulic Door Closer in open any angle, close the speed control valve should be able to temporarily suspend the damping reset function.

6）Safe and rapid ultra-damped closing performance

Hydraulic Door Closer in the process of closing any angle suddenly applied external force, should be able to safely and quickly close.

Selection tips

1. In the purchase before, to understand the weight and size of the door, if the weight of the door is light, you can properly select the closing force is a small, well-sealed Hydraulic Door Closer. If the weight of the door is heavier, and the size is larger, you can choose to close the door strength of some Hydraulic Door Closer.

2. In the opening and closing of the door, the Hydraulic Door Closer use frequency is very high, so in the purchase, focus on understanding its service life. If it is poor quality, short service life, it is easy to damage.

3. Hydraulic Door Closer products must meet the national standard, for fire door use Hydraulic Door Closer should also meet the requirements of UL228 "fire door closer test".

The above is the introduction to how to buy Hydraulic Door Closer, we should understand the role of Hydraulic Door Closer in home decoration, when using must first determine whether the function meets the requirements, so as not to bring unnecessary trouble to the future use.

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Contact: David Jian
Mob:0086-139 2903 7292
Email: David@dndhardware.com, sales@dndhardware.com,

Jobby Zhang
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Email: jobby@dndhardware.com