HVAC Galvanized Steel Duct Butterfly Round Check Valve Backdraft Damper

This specification sheet specifies the damper’s technical requirements, test methods, product model and manufacturing batch number Technical requirement and test method (test on door lock) This damper work angle have three kind. 0-40 degre 0-90 dgeree 0-120 degree If for other angle, please...

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This specification sheet specifies the damper’s technical requirements, test methods, product model and manufacturing batch number

rotary disk damper used in door lock

rotary disk damper used in door lock


rotary disk damper

rotary disk damper

Technical requirement and test method (test on door lock)

No.

Item

Technical requirement

Test method


     2.1

Damping time

Damping time:1.5±1 seconds.

  1. Test machine:test special tools (door lock)

 

2). method:T=1.5N・m(15kgf・cm),turn the door lock, when the rotation angle is 40 degree, test the time from 35-0degree.
       3).test angle:70゚→ 0゚
       4).test temperarure:23℃±2℃

2.2

durability

1)working angle more than 0.5 seconds

2)no oil leakage, no broken

1) durability test condition:

    1. Test machine: test special machine(door lock, the handle one turn)

    2. Test method: the door lock handle from close position to open position. Angle is 30゚±10゚it can back to close position。

    3. torque:1.5N・m(15kgf・cm)

    4. working angle:0゚←→40゚

    5. test frequency  10times/min.

    6. test temperature:23℃±2℃

    7. durability:50,000 cycles

  1. judging criteria after test

a)working angle:after test, put damper at room temperature 23℃±2℃ more than 24 hours,test it according to item 2.2 and get the damping time
       b)appearance:judge the appearance

2.3

Working temperature range

1)-5℃:3.0 ±1.5  秒

2)50℃: 1.5 ± 1.0 秒

  1. working temperature test condition

    1. damper place temperature:-5℃,50℃

    2. damper place time:>3 hours

  2. judging criteria after test

place the damper in each temperature, and then put in room temperature, test it according to item 2.1

2.4

Storage temperature

1)damping time change rate in preliminary stage within±30%

2)no oil leakage, no broken

  1. storage temperature test condition

    1. damper storage temperature:-20℃,60℃

    2. damper storage time:72hours

  2. judging criteria after test

    1. damping time, place the damper in each temperature and then put in room temperature, test the damping time according to item 2.1

 

2.5

No load torque

<0.8N・m(6kgf・cm)

1)rotation speed:1rpm
     2)test angle:40°
     2).Method: reverse the rotary shaft and test the maximum torque.

2.6

Working angle

40°

To keep it work 50000cycles, it

2.7

direction

Clock wise CW(L)

 

2.8

size

See the drawing

 

2.9

 

weight
     8.5g±1g


This damper work angle have three kind.

0-40 degre

0-90 dgeree

0-120 degree

If for other angle, please contact us for more information.

Welcome to purchase high quality and precise rotary disk damper used in door lock from Toyou Industry - one of the leading such manufacturers and suppliers. We have been specialized in this field for over 15 years. And we offer customers the most competitive price. Don't hesitate any more.
Each product is precisely test by professional technicians before leaving the factory to ensure the stable performance and high quality of HVAC Galvanized Steel Duct Butterfly Round Check Valve Backdraft Damper. We firmly believe that innovation is the life of an enterprise. We advocate innovation, continue to develop better products and provide customers with professional and high-quality services and support. We adhere to the quality-oriented, efficiency first, continuous improvement, people-oriented management philosophy.
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