DOOR CLOSER
Rongtai Hardware was established in 1990. It's one of the first hardware suppliersto manufacture window friction hingein Shantou, China. Later we developed some other series of hardware products, such as locks in Zhongshan, furniture hinge in Gaoyao and so on.
The door closer is a spring like hydraulic device on the head of the door. When the door is opened, it can be compressed and released to close the door automatically. It is like a spring door, which can ensure that the door can be closed to the initial position accurately and timely after being opened. The modern hydraulic door closer (hereinafter referred to as the door closer) began with a patent registered by the Americans at the beginning of the 20th century. It is different from the traditional door closer in that it achieves buffering effect by throttling the liquid in the door closer. The core of the design idea of the hydraulic door closer is to realize the control of the closing process so that the various functional indicators of the closing process can be adjusted according to the needs of people.
FAQs of Door Closer
Q: Where's the application of door closer workingin our life?
A: Door closers are mainly used in commercial and public buildings, but they are also used at home. They have many uses, the most important of which is to close the door to limit the spread of fire and ventilation in the building.
Q: What is the door closer working principle?
A: The types of door closers can be divided into external and internal top door closers, internal middle door closers, bottom door closers (floor springs), vertical door closers (built-in vertical door closers), and other types of door closers.
Q: How long is the service life for door closer definition?
A: The key quality problem of the door closer is whether it leaks oil because the door closer relies on the throttling of the fluid in its internal hydraulic system to realize the control of the closing process. Oil leakage means the failure of the hydraulic system, so the hydraulic system is the only standard to determine the service life of the door closer.
We supply many door closer products by door closer factory, such as door closer pdf, soft sliding door closers, door closer lock open, if you want to know pelmet arm door closer price, please contact us.
在线联系供应商
Other supplier products
 |
CH-593A 3D 35MM CUP CLIP SOFT-CLOSING GLASS HINGE WITH 3D ADJUSTMENT BASE | Specifications of CH-593A 3D 35mm Cup Clip Soft-closing Overlay/Inset Glass Door Hinges with 3D Adjustment Base Type: Furniture Hinge, Furniture h... |
 |
SOFT-CLOSING HINGE | Hydraulic hinge, also known as soft-closing hinge and damping hinge, is a kind of hinge which relies on a new technology and provides an ideal damp... |
 |
BALL BEARING DRAWER SLIDE | Rongtai Hardware was established in 1990. It's one of the first hardware suppliersto manufacture window friction hingein Shantou, China. Later we d... |
 |
TANDEM BOX DRAWER SLIDE | ROEASY tandem drawer runnerswith the addition of gallery rails the height of any drawer can be extended to contain the intended contents of a drawe... |
 |
FOLDING RACK | CXJ-S Aluminum Alloy Magnetic fold down rack Specifications of CXJ-S Aluminum Alloy Magnetic folding chairs rack wall mount Type: Other Furniture... |
Same products
 |
定制电机模具 | 卖方: 846123 | 90 三排高速渐进冲压模具定制电机模具()90 三排高速渐进冲压模具是专为高速渐进冲压而设计的专用工具，专为高精度电机铁芯量身定制。该模具的创新设计显著提高了效率和生产力，可同时加工多种产品。主... |
 |
Emergency Snow Chains | 卖方: Zhejiang Pujiang Bohu Chain Stock Co., Ltd. | Our Emergency Snow Chains are engineered to deliver unbeatable grip on snow and ice, ensuring t... |
 |
Brass Brake Lining Rivets | 卖方: Taizhou First Rivet Co.,Ltd | Our Brass Brake Lining Rivets are precision-engineered to provide a strong and reli... |
 |
China made SEAL,STEAM,LP-B6TH DIPRAGM Steam Turbine CIV CB25-8.82/0.98/0.118 for power plant | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "China made SEAL,STEAM,LP-B6TH DIPRAGM Steam Turbine CIV CB25-8.82/0.98/0.118 for power plantis a... |
 |
"China manufacturer Regulating Valve Stem Steam Turbine LP inner cylinder N600-23.8/566/566 for power generation | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "China manufacturer Regulating Valve Stem Steam Turbine LP inner cylinder N600-23.8/566/566 for p... |
