Door Return Mechanism

Water return Value and water distributer  For Floor Heating  System
Water return Value and water distributer For Floor Heating System
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Min Order Qty: 1 pc
Supply Capability: 50000 pc/month
Scaffolding Accessories Return Transom
Scaffolding Accessories Return Transom
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Min Order Qty: -
Supply Capability: -
Full system Return system Discharge system
Full system Return system Discharge system
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Min Order Qty: 20 pc
Supply Capability: 100 pc/month
Air vent grill  Basedboard Return Air Grille
Air vent grill Basedboard Return Air Grille
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Min Order Qty: 1000 PCS
Supply Capability: 100000 PCS/month
Steel Pipe Fittings Butt-Welding 180° Long Radius Return Bends
Steel Pipe Fittings Butt-Welding 180° Long Radius Return Bends
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Min Order Qty: 100 pc
Supply Capability: 10000 pc/month
Linear Air Return Vent Diffuser Ceiling Use Grilles
Linear Air Return Vent Diffuser Ceiling Use Grilles
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Min Order Qty: 100 pc
Supply Capability: 999999 pc/month
Return Air Grille with Aluminum Filter in China
Return Air Grille with Aluminum Filter in China
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Min Order Qty: 100 pc
Supply Capability: 999999 pc/month
2015 Return Air Grille with Aluminum Filter in China
2015 Return Air Grille with Aluminum Filter in China
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Min Order Qty: 100 pc
Supply Capability: 999999 pc/month
Plastic Return Air Grille PP ABS white color
Plastic Return Air Grille PP ABS white color
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Min Order Qty: 1000 PCS
Supply Capability: 100000 PCS/month
trolley mechanism 4D3V3
trolley mechanism 4D3V3
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Supply Capability: -
trolley mechanism 6JXF5
trolley mechanism 6JXF5
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Supply Capability: -
trolley mechanism 11JXF8
trolley mechanism 11JXF8
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Supply Capability: -
trolley mechanism 4D3V2
trolley mechanism 4D3V2
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Supply Capability: -
trolley mechanism 2JXD1
trolley mechanism 2JXD1
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trolley mechanism 120JXL
trolley mechanism 120JXL
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Supply Capability: -
trolley mechanism 11JXF10
trolley mechanism 11JXF10
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Min Order Qty: -
Supply Capability: -
Chair Mechanism D-008
Chair Mechanism D-008
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Min Order Qty: 500pcs pc
Supply Capability: 50000 Pieces Per Month pc/month
Venetian Blind Electrical with Roller Shutter Mechanism
Venetian Blind Electrical with Roller Shutter Mechanism
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Min Order Qty: 50 m²
Supply Capability: 10000 m²/month
Simple Chair Recliner Mechanism for type 4311
Simple Chair Recliner Mechanism for type 4311
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Min Order Qty: 300 set
Supply Capability: 10000 set/month
Tower Crane VFD PLC Hoistingf Mechanism New
Tower Crane VFD PLC Hoistingf Mechanism New
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Min Order Qty: 1 unit
Supply Capability: 30 unit/month
Manual spring motorized mechanism  electric roller blinds
Manual spring motorized mechanism electric roller blinds
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Min Order Qty: 10 set
Supply Capability: 50000 set/month
Chair Mechanism B-002
Chair Mechanism B-002
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Min Order Qty: 200 pcs pc
Supply Capability: 50000 Pieces Per Month pc/month
Tower Crane 12 Ton Mechanism TC7021 Factory
Tower Crane 12 Ton Mechanism TC7021 Factory
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Min Order Qty: 1 unit
Supply Capability: 30 unit/month
Mechanism 38 mm Vertical Roller Shades Blinds
Mechanism 38 mm Vertical Roller Shades Blinds
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Min Order Qty: 500 set
Supply Capability: 200000 set/month
Manual spring/ mechanism fabric roller blind
Manual spring/ mechanism fabric roller blind
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Min Order Qty: 10 set
Supply Capability: 50000 set/month
Pallet Returner,pallet return conveyor, is often used in brick production line
FOOD MECHANISM    MEAT GRINDER JR SERIES
FOOD MECHANISM MEAT GRINDER JR SERIES
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Min Order Qty: 1 unit
Supply Capability: 100 unit/month
Slewing Mechanism for Tower Crane
Slewing Mechanism for Tower Crane
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Min Order Qty: 1 Set pc
Supply Capability: 1000 Sets Per Month pc/month
FOOD MECHANISM  VACUUM BOWL CUTTER ZKZB SERIES
FOOD MECHANISM VACUUM BOWL CUTTER ZKZB SERIES
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Min Order Qty: 1 unit
Supply Capability: 100 unit/month
Hoisting Mechanism 70RCS40
Hoisting Mechanism 70RCS40
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Min Order Qty: -
Supply Capability: -
Hoisting Mechanism 110JLF63
Hoisting Mechanism 110JLF63
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Min Order Qty: -
Supply Capability: -
Bed Gas Lifting Mechanism for  Bed Parts
Bed Gas Lifting Mechanism for Bed Parts
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Min Order Qty: 5000 set
Supply Capability: 10000 set/month
trolley mechanism 4JXF4
trolley mechanism 4JXF4
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Min Order Qty: -
Supply Capability: -
Welded square rectangular tube for mechanism
Welded square rectangular tube for mechanism
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Min Order Qty: 10 m.t.
Supply Capability: 3500 m.t./month
FOOD MECHANISM    Meat Vacuum Mixer series
FOOD MECHANISM Meat Vacuum Mixer series
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Min Order Qty: 1 unit
Supply Capability: 100 unit/month
Chair Mechanism ND002
Chair Mechanism ND002
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Min Order Qty: 200 pcs pc
Supply Capability: 50000 Pieces Per Month pc/month

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Door Return Mechanism Supplier & Manufacturer from China

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Hot Products

FAQ

How does the door closer work?
The door closer is a similar spring-like hydraulic pressure, when the door is opened after the release by compression, the door automatically shut, like the role of the spring door, you can ensure that the door is opened, accurate and timely closure to the initial positions
What is the main function of the door closers of fire doors?
To ensure that the door in a normally closed state, to avoid instantaneous fire through.s
How closed the door closer
Now the door closer product market chaos, cheap and difficult to guarantee the quality and service life. Can be self-adjusting the side door screws tight, too loose will leak! If not only timely replacement.s
Why do you turn the door closer?
First, the solution: Use a screwdriver to release the adjustment valve on the door closer. Second, the role of behind closed doors: Modern hydraulic door closers (hereinafter referred to as closed doors) began in the early twentieth century, a patent registered by the Americans, it is different from the traditional door closers, through the closure of the liquid in the throat to achieve the buffer effect The The core of the design of the hydraulic gatekeeper is to realize the control of the closing process so that the various functional indexes of the closing process can be adjusted according to the needs of the people. The significance of the door closer is not only to automatically shut the door, but also to protect the door frame and the door (smooth off), more importantly, the door closet has become a modern building intelligent management of a non-negligible implementation of the part. Door closers are mainly used in commercial and public buildings, but are also used at home. They have many uses, the most important of which is to make the door closed by itself, to limit the spread of fire and ventilation within the building.s
How closed the door closers
Adjust the tightening of the door closer is to adjust the closing speed, the strength of the fast when the speed is small, the door is close to the door close to the slow speed. Door closers to adjust the closing speed is through the two hydraulic valve independent control of two door closers closing speed for full hydraulic control. Adjustment method and precautions: (1) generally in the side of the door closer to the side of the adjustment valve is marked 1.2, speed 1 block is to adjust the door opening angle from 90 degrees to 20 degrees between the closing speed, speed 2 is to adjust the door opening angle from 20 Degrees to 0 degrees is the door completely closed the speed of the trip. (2) When adjusting the valve screw tightening (clockwise adjustment) is to slow down the speed, that is, the door closer to the door to adjust the power. (3) If the valve screw loose (counter-clockwise adjustment) is the speed becomes faster, that is, increase the closing door closing force. Adjust the amplitude must be controlled in a small range, and each adjustment are tested door fan strength is appropriate, if the amplitude is too large may screw off, resulting in door closers oil spill.s
Closer prices
This model, style, each manufacturer, brand has a different parameter.s
How can we install a door closet
Parallel installation: The door closer is mounted on the door and the parallel plate is mounted on the door frame. And the door closer is mounted on the door side. This installation method is suitable for the door frame is very narrow, or almost no door frame.s
How to install the door closer
Connecting rod and the door to 90 degrees, then the host mounted on the door, two screws on the door, rocker in the door frame.      2, the installation of door closers      A, closed door installation      The most commonly used door closers are exterior door closers, which are installed as follows:      The most common standard usage is that the door closers are mounted on the hinge side and the door opens. When installed, the arms of the door closers protrude outward and about 90 ° to the door frame.      In the second use, the door closer is mounted on the opposite side of the hinge side. Typically, an additional bracket provided with the door closer is mounted on an arm parallel to the door frame. This kind of usage is usually not required to install the door closer to the outside of the building outside the open door.      The door closer is installed on the opposite side of the hinge of the door. This use can also be used in outward doors, especially only on a very narrow edge, without enough space to accommodate the doors of the door closer.s

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