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.

Other supplier products

	TOWER BOLT	Tower bolt is a kind of anti-theft component to prevent doors and windows from being opened from the outside. Modern doors and windows are usually ...
	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...
	DRAWER LOCK SERIES	Drawer locks are a kind of lock and a device used to lock a drawer. Such a lock is a fastener that must be opened with a key or a code. Drawer lock...
	MORTISE LOCK	It's important to make sure entryways to your home are properly secured to keep your belongings and family safe. Choosing the right door lock setup...
	DOOR HARDWARE	Apart from the door lock, door hardware is also an indispensable part of home decoration, because it largely relates to the normal use of room furn...

供应产品

Same products

	Durable Pipeline Isolation Equipment for Industrial Use	卖方: Zhejiang Naishi Valve Co.	Technical Specifications – Cast Steel Trunnion Mounted Ball Valve ◎ Design Standard: API 6...
	Small Scroll Finial	卖方: 868715	Hangzhou Chuanya Building Materials Co., Ltd. offers Small Scroll Finial products designed to add...
	Precision Components for Touchless Water Control	卖方: 868257	Urinal Solenoid Valve is designed for automatic urinal flushing and sanitary water-control system...
	Protecting Pipeline Media with Insulated Valve Systems	卖方: Zhejiang Naishi Valve Co.	Technical Specifications◎ Design Standard: API6D, ASME B16.34, GB/T 19672, etc.◎ Material: Carbon...
	RMF-Z-20J Right Angle Pulse Jet Valve	卖方: XingYu Electron (Ningbo) Co., Ltd	The RMF-Z-20J Right Angle Pulse Jet Valveis a type of Right Angle Pulse Jet valvecommonly used in...