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Door-closer
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CE UL Commercial Door Closer Types
Door closer is a spring-like hydraulic device on the head of the door, when the door is opened can be released through the compression, the door will be automatically closed, there is a role like a spring door, you can ensure that the door is opened, accurate and timely closure to the initial position. D&D door closer test to the international industry standards (European Standards& American Standards), including BS EN /UL, Suitable for Education, Healthcare, Hotel, Government, Apartment, Hospitality, Commercial applications.
UL Listed Fire Rated Adjustable Heavy Duty Back Check Global Door Closer UL Listed Fire Rated Adjustable Heavy Duty Back Check Global Door Closer
CE EN1154 Self Closing Aluminum Commercial Exterior Door Slow Closers CE EN1154 Self Closing Aluminum Commercial Exterior Door Slow Closers
Residentail Automatic Spring Hydraulic UL 10C Concealed Sliding Door Closer Residentail Automatic Spring Hydraulic UL 10C Concealed Sliding Door Closer
Security 180 Degree EN1634 Fireproof Hotel Front Door Closer Manufacturer Security 180 Degree EN1634 Fireproof Hotel Front Door Closer Manufacturer
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CE EN1154 UL 10C Door Closer
The working principle of the door closing device is: when the door is opened, the door body drives the connecting rod action, and makes the transmission gear rotate, driving the rack plunger to move to the right. As the plunger moves to the right, the spring is compressed and the hydraulic oil in the right chamber is also compressed. The ball of the check valve on the left side of the plunger is opened under the action of oil pressure, and the hydraulic oil in the right chamber flows through the check valve to the left chamber. When the opening process is completed, because the spring is compressed during the opening process, the accumulated elastic potential energy is released, and the plunger is pushed to the left side, driving the transmission gear and the door closing rod to rotate, so that the door is closed.
UL Listed Adjusting Sliding Hidden Fire Interior Door Spring Closer UL Listed Adjusting Sliding Hidden Fire Interior Door Spring Closer
 
CE EN1634 Fire Proof 2 Hours Hydraulic Arm Metal Wood Door Closer CE EN1634 Fire Proof 2 Hours Hydraulic Arm Metal Wood Door Closer
Gobal Surface Mounted Backcheck UL Fire Rated Door Closer Supplier Gobal Surface Mounted Backcheck UL Fire Rated Door Closer Supplier
 
Universal Hardware BS EN1154 Strong Best Door Closer for Home Universal Hardware BS EN1154 Strong Best Door Closer for Home
Safety UL 10C Overhead Automatic Hydraulic Industrial Door Closer Safety UL 10C Overhead Automatic Hydraulic Industrial Door Closer
 
90 Degree Opening Quiet Cast Iron Electric Slide Arm Door Closer 90 Degree Opening Quiet Cast Iron Electric Slide Arm Door Closer
UL Fie Resistance Heavy Duty Aluminium Alloy Swinging Door Closer UL Fie Resistance Heavy Duty Aluminium Alloy Swinging Door Closer
 
Gravity Door Selector Coordinator for Hollow Metal Double Doors Gravity Door Selector Coordinator for Hollow Metal Double Doors
 
Door Closer Certification
  • UL 10C R40717 Door Closer
    UL 10C R40717 Door Closer
  • UL 10C R40717 Door Closer
    UL 10C R40717 Door Closer
  • EN1154 Door Closer DDDC013
    EN1154 Door Closer DDDC013
  • EN1154 Door Closer DDDC014
    EN1154 Door Closer DDDC014
Different Types of Door Closer
The types of door closers can be divided into: externally mounted and built-in door top closers, built-in door centre closers, door bottom closers (floor springs), vertical door closers (in-built vertical door closers) and other types of door closers.
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Fire Rated Door Closer Project
D&D fire rated door closer comply to ANSI,BHMA,UL and BS EN/CE, Suitable for Residential Building, Office Building,Education, Healthcare, Hotel, Government applications.We can supply international branded quality at factory cost with mechanical guarantee and after sales service.
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CE, UL, ANSI/BHMA Certified Hardware for Metal Doors, Fire Rated Doors, Wooden Doors etc. We have Rich Experience working with Famous Brands, Door Factories, Proiect Contractor, etc.

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