Damper

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Measuring and Regulating Damper PRA, Halton
Halton
Measuring and Regulating Damper PRA, Halton
Art. no.: 6642816
PRA is a cone-shaped iris damper and has manual adjustment with knob. The adjustment damper contains an adjustable cone and measuring socket for measuring the pressure difference in the air flow. The measuring damper housing and the cone-shaped iris blades are made of galvanized steel. The air flow calculation is based on measuring the pressure difference caused by the air flow over the damper cone. The adjustment damper is provided with an indicator and marking for the adjustment position which is used during cleaning. The installation direction of the damper must correspond to the air flow direction. The air flow direction is marked with an arrow on the housing. The height refers to the slider and is added to the diameter of the damper. The density class refers to the housing. Temperature range -30° C to +70° C
Adjustment Damper BDEP-1, FläktGroup
FläktGroup
Adjustment Damper BDEP-1, FläktGroup
Art. no.: 6642404
The adjustment damper BDEP-1 is intended for use in systems with circular ducts. The dampers consist of a cylindrical housing and damper blade. They are set manually and are equipped with a graduated scale for setting the damper angle. For damper sizes up to 031, the damper angle is set with a knob , on larger sizes with a control handle. The damper angle is locked with a screw. The seal is made of solid EPDM rubber has very good resistance to moisture, air pollution and solar radiation and can withstand temperatures between -30 ° C to 80 ° C with retained function. Sizes 040 - 063 are adapted to 50 mm external insulation Density class 0 according to SS-EN1751: 1998 and VVS AMA 98 respectively.

The length refers to the length of the damper, excluding connections.
Adjustment Damper BDEP-1, FläktGroup
Shut-off damper BDEP-40 with motor shelf, FläktGroup
FläktGroup
Shut-off damper BDEP-40 with motor shelf, FläktGroup
Art. no.: 6642582
The damper BDEP-40 is intended for use in systems with circular ducts for shutting off the air flow. The dampers consist of a cylindrical housing and damper blade and a universal motor shelf. Motor is not included. They are set manually and are equipped with a graduated scale for setting the damper angle. For damper sizes up to 031, the damper angle is set with a knob, on larger sizes with a control handle.The damper angle is locked with a screw.The seal is made of solid EPDM rubber has very good resistance to moisture, air pollution and solar radiation and can withstand temperatures between -30° C to 80° C with retained function Sizes 040 - 063 are adapted to 50 mm external insulation Density class 4 according to SS-EN1751: 1998 and HVAC AMA 98 respectively.

The length refers to the length of the damper, excluding connections.
Delivered without motor.
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