Fire linkage door closers in Wuhan, Hubei are of good quality and low price

规格：

525*32*36mm

Networked with fire control, it is usually passive. In case of fire, it receives the linkage control signal (seconds) or when the temperature reaches a certain temperature, it will automatically close the fire door smoothly and provide feedback signals to the fire host. There is a working status indicator light.
Main parameters
Model
Product size** **
Material stainless steel
Short closing force*
Current.(.sec)
Voltage Normally passive, instantaneous power supply to close the door
Information feedback dry contact signal
Normally, the door opening method is to pull the door leaf to close the door, and slide the hand to see if it blocks the door. In case of fire, power is supplied and the door closes automatically. In case of fire, warm electricity is used. When the time is up, the door closes automatically.
Buffer mode level hydraulic speed regulation
Applicable to door width and door weight,
Applicable to door swing doors
Product introduction
Product parameters
Model
Suitable for door weight (national standard)
Electrical parameters,
Linkage chute size*
Maximum opening angle
Arrangement method Push noodle door, ramen noodlebr/> Can be networked with the fire protection system, Normally, fire power is supplied to the fire-linked door closer to keep the fire door open.
In case of fire, disconnect the power and the fire door can be closed smoothly under the action of the linkage door closer, and at the same time, a feedback signal is provided to the fire control room.
It has a two-level speed adjustment buffer function, and also has functions such as electronic control, manual control, and temperature control.
, suitable for steel fire doors, wooden fire doors, and movable (flat) fire windows.
, process design, high-end and beautiful.
Product Features
The only real door opening and closing status feedback
Excellent safety, automatic secondary buffer closing after power failure
Super energy saving, the light will turn on when the opening is in place, and the power will automatically shut down when closing
br/> Ultra-thin body
After power on, push the door to automatically and easily reset (normally open)
Can be directly connected to an external temperature smoke sensor to form an independent system
Independent core technology, obtained patent certificate
The fire door closer has a secondary speed adjustment buffer function to enable the fire door to close smoothly.
Suitable for door control systems used in industrial and mining enterprises, residential projects, commercial buildings, hospitals, schools and other places.
Normally open automatic closing device for fire doors and windows
. Used in conjunction with positioning type folding link door closers or chute type link door closers.
.It does not affect the normal opening and closing of doors and windows. When the ambient temperature reaches .℃, the temperature-sensitive glass breaks and the device operates. Its spring thrust forces the door closer to lose its position and close the door and window smoothly.
During installation, pay attention to the installation position of the device's rotating arm teeth and the door closer's square shaft when the fire doors and windows are opened and positioned so that the device is as close as possible to the door, window frame or door or window.