• Shut-off and balancing damper for outdoor air intake and exhaust air with opposed blade design
• Damper blades comprise thermal insulation
• Tightness in closed position fulfills EN 1751 class 3 requirements
• Temperature operation range up to +100°C, optionally up to +200°C
• Galvanised steel design
• Classification of casing leakage EN 1751 class B

Product models and Accessories

• Model with stainless steel /acid-proof steel (AISI 316) design.
• Model with insulated casing
• Model with heat-proof design
• Circular duct connections
• Several actuator options

The casing and blades are made from galvanised steel or stainless steel AISI 316).
The blade gaskets are made of silicon (or EPDM- rubber).
The drive shaft socket is made of galvanised steel with self-lubricating slide bearings.
The bearing is made from an alloy of polyamide and molybdenum sulphide (or stainless steel AISI 316 or stainless steel AISI 304 or bronze).

The damper is installed into rectangular ducts in compliance with EN 1751, or in circular ducts D=100 ...1250mm in accordance with EN 1751.
The damper meets the tightness requirements of EN 1751 class 3.
The casing of the damper meets the tightness requirements of EN 1751 class B.

Heat transmission of the damper does not exceed 6 W/(m2K).
The damper is suitable for either manual adjustment or actuator operation.

• Dimensions
• Material
• Accessories
• Function
• Installation
• Specification
• Order Code

Halton UTT

Tight multi-blade damper

• Shut-off and balancing damper for outdoor air intake and exhaust air with opposed blade design
• Damper blades comprise thermal insulation
• Tightness in closed position fulfills EN 1751 class 3 requirements
• Temperature operation range up to +100°C, optionally up to +200°C
• Galvanised steel design
• Classification of casing leakage EN 1751 class B

Product models and Accessories

• Model with stainless steel /acid-proof steel (AISI 316) design.
• Model with insulated casing
• Model with heat-proof design
• Circular duct connections
• Several actuator options

Dimensions ▲

Models with rectangular connections

Models with circular connections (CT=D1 or CT=D2)

Material ▲

Shaft types and dimensions

Depending on the choice of bearing material, the damper will be equipped with a round or square axle.

On Halton UTT/R dampers with standard bearings (BE=ST) , the damper will be equipped with a square 15x15 mm galvanised steel axle.

On heatproof design Halton UTT/R dampers, and on all dampers with AISI316/304 or bronze JN5 bearings (BM=AS, BM=SS or BM=BR) a round Ø15mm AISI 316 stainless steel axle will be used. 

Accessories ▲

The product models MD=I and MD=J have a double sheet casing with mineral wool insulation. The insulation thickness is 20 mm.

The Halton UTT damper is available equipped with either manual adjustment or actuator operation.
The adjustment and control arrangement options are:

The damper actuator is selected from the list below according to the
operating voltage, control arrangement and the required torque of the damper.
The torque of the selected actuator can be higher than the required torque of the damper.

Actuator options

LM-models   Torque, damper size ...4 Nm A<0.4 m 2
                    Manual override operation, mechanical position limit

LF-models   Torque, damper size ... 4 Nm A<0.4 m2
                    Spring return, mechanical position limit

NM-models   Torque, damper size ... 8 Nm A<1.2 m 2
                     Manual override operation,mechanical position limit

BLF-models   Torque, damper size ... 4 Nm A<0.4 m2
                      Spring return, manual operation, position lock

BF-models   Torque, damper size ...12 Nm A<2.5 m 2
                    Spring return, manual operation, position lock

SF-models   Torque, damper size ... 20 Nm A<4 m2
                    Spring return, manual operation, position lock

SM-models   Torque, damper size ... 18 Nm A<3.3 m2
                     Manual override operation, mechanical position limit

GM-models   Torque, damper size ...30 Nm A<6m2
                     Manual override operation

Required torque for Halton UTT-damper actuator

Function ▲

The Halton UTT dampers are used to shut off or control airflow in ductwork where tightness, thermal insulation and reliability are important.
In the closed position the Halton UTT damper leakage class is 3 in accordance with the EN1751 standard.

In the open position the blades are turned in the direction of flow and do not cause significant pressure losses.

Damper sizes conform with the international standards EN 1505, EN1506 and ISO 1707 for rectangular and circular ducts.

The maximum operation temperature of a standard damper is +100°C (for optional models +200°C).

Heat transmission of the damper is 6 W/(m 2 K).

Installation ▲

Code description
1.  Casing
2 . Blade
3.  Gaskets
4.  Manual adjustment handle / actuator platform

Install the damper in the ductwork with the blades in horisontal or vertical position.
Fasten the damper in the ductwork using slip joints.

Optional models enable fastening the damper to duct flange by using bolts.
Drill holes in the damper flange if necessary (options L1 & L2).
Use a seal between the flanges in order to tighten the seam.

Fasten the models with circular connections by riveting or screwing.

Specification ▲

The casing and blades are made from galvanised steel or stainless steel AISI 316).
The blade gaskets are made of silicon (or EPDM- rubber).
The drive shaft socket is made of galvanised steel with self-lubricating slide bearings.
The bearing is made from an alloy of polyamide and molybdenum sulphide (or stainless steel AISI 316 or stainless steel AISI 304 or bronze).

The damper is installed into rectangular ducts in compliance with EN 1751, or in circular ducts D=100 ...1250mm in accordance with EN 1751.
The damper meets the tightness requirements of EN 1751 class 3.
The casing of the damper meets the tightness requirements of EN 1751 class B.

Heat transmission of the damper does not exceed 6 W/(m2K).
The damper is suitable for either manual adjustment or actuator operation.

Order Code ▲

UTT/S-W-H-D, CT-SF-MA-MD-BM-MO-AC-ZT

S = Type of duct connections
       R    Rectangular connections
       C    Circular connections

W = Width
       100,+1,..,2400

H = Height
       100,+1,..,2400

D = Connection size (for circlular model, C)
      100, 125, 160, 200, 250, 315, 400, 500, 630, 710, 800, 1000, 1250
 

Other options and Accessories

CT = Type of circular connection
          D2    2 circular connections
          D1    1 circular connection

SF = Flange option
          NA    No special frame construction
          L1     Standard + flange connection
          L2     Flange connection on both sides
          R2    Flange connection with holes

MA = Material
         CS      Steel
         AS      Stainless steel (AISI 316)

MD = Model
          N       Standard
          H       Heat-proof
           I        Insulated
          J        Heat-proof and insulated

BM = Bearing material
          ST     Standard (Plastic)
          AS     Stainless steel (AISI 316)
          SS     Stainless steel (AISI 304)
          BR     Bronze JN5

 MO = Actuator type
          NA     Not assigned
          MA     Manual handle
          E1     Electric BF24-2.1HL
          E3     Electric BF230-2.1HL
          E7     Electric BF120-HL
          P0     Pneumatic,Rot.AT100
          A1     Electric SM24A
          A2     Electric SM24A-S
          A3     Electric SM230A
          A4     Electric SM230A-S
          A5     Electric SM24A-SR
          A6     Electric SF24A (replace old AF24)
          A7     Electric SF24A-S2 (replace old AF24-S)
          A8     Electric SF230A (replace old AF230)
          A9     Electric SF230A-S2 (replace old AF230-S)
          A0     Electric SF24A-SR (replace old AF24-SR)
          C1     Electric NM24A
          C2     Electric NM230A
          C3     Electric NM24A-SR

AC = Accessories
          BA    Bar adjustment
          S1    SN1 Auxiliary switch
          S2    SN1/500 auxiliary switch
          S3    SN2 Auxiliary switch
          S4     S2A Auxiliary switch
          L1     Limit switch, 1 pc, IP65
          L2     Limit switches, 2 pcs, IP65
          L3     EX-proof limit switch, 1 pc, IP66
          L4     EX-proof limit switches, 2 pcs, IP66
          M1    Solenoid valve 24 VAC
          M2    Solenoid valve 230 VAC
          M3    EX-proof solenoid valve 24V
          M4    EX-proof solenoid valve 230V

ZT  = Tailored product
         N       No
         Y       Yes 
 

Code example

          UTT/R-100-100, SF=NA, MA=CS, MD=N, BM=ST, MO=MA, ZT=N