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china factory 70 deg or 280 deg electric msfd hvac fire damper for air ductwork70℃ or 280℃ electric Fire damper in good quality
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HVAC Rectangular Duct Sealed Air DamperThe air volume damper has the features of simple construction, low leakage, small torque, flexible operation, corrosion resistance.
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Hvac Round electric air damperIt is installed in Chiller room and interlocked with axial fan.In Summer,when the axial fans are running,the damper are also running to exhaust the air produced by chillers;in Winter,the axial fan don't run ,and the dampers also stay closed to keep the temperature insides.
LOADING IMAGES
volume control Iris damper for round duct
lead time:
5-25 daysproduct orgin:
Fujian ,China (Mainland)brand:
XMZXLshipping port:
xiamenpayment:
L/C,T/T,Western Union
Iris Damper (volume control damper for round duct)
Galvanized steel IRIS air volume control damper of the diaphragm type with pressure measuring points.
Application
It is an ideal air flow regulator and measuring device for circular ducts, the diaphragm valve ensures a perfect accordance between the diameter indication on the handle and the opening of the valve, in the fully open position the iris damper provides 100% free area with no contrl mechanism in the airstream allowing easy and effective cleaning of the duct work system.
Materials
Body and valve are made of galvanized steel DX53D + Z80 or DX53D + Z275
Seal ring is made of EPDM seal
Sizes
Available from Dia. 80 up to 800mm
Composition
Body and valve made of galvanice steel sheet
Plastic regulator nut with plastic key
Measuring point on either side of the valve for connection of manometer.
Sticker with selection graph, mentioning the air volume at the different opening positions of the valve and the according pressure level.
Flexible joints for air tightness when placed indside the duct.
| Size(mm) | d(mm) | D(mm) | L(mm) | A(mm) | Thick (mm) | Weight(kg) |
| 80 | 79 | 125 | 115 | 23 | 0.60 | 0.40 |
| 100 | 99 | 165 | 115 | 27 | 0.60 | 0.60 |
| 125 | 124 | 188 | 115 | 27 | 0.60 | 0.70 |
| 150 | 149 | 230 | 115 | 27 | 0.60 | 1.00 |
| 160 | 159 | 230 | 115 | 27 | 0.60 | 1.00 |
| 200 | 199 | 285 | 120 | 27 | 0.60 | 1.50 |
| 250 | 249 | 335 | 135 | 33 | 0.60 | 1.90 |
| 300 | 299 | 405 | 140 | 33 | 0.60 | 2.50 |
| 315 | 314 | 405 | 140 | 33 | 0.60 | 2.50 |
| 400 | 398 | 525 | 150 | 46 | 1.00 | 6.10 |
| 500 | 498 | 655 | 150 | 46 | 1.00 | 8.80 |
| 630 | 628 | 815 | 155 | 46 | 1.00 | 15.80 |
| 800 | 798 | 1015 | 285 | 110 | 1.00 | 24.80 |
Pressure relief dampers for ventilation
Use for regulate pressure in cleanroom Control air mixing rate Maintain positive pressure Flexible rotation Save engery
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china factory 70 deg or 280 deg electric msfd hvac fire damper for air ductwork
70℃ or 280℃ electric Fire damper in good quality
Aluminum air opposed volume control blade Damper
1. It can be used to adjust the air distribution of the air condition system. 2. It adopts the means of linkage between the blades. The ventilating areas can be changed by pulling the valve plate.