Halton UTT – Multi-blade airflow management damper

Overview

• 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 316L) design.
• Model with insulated casing
• Model with heat-proof design
• Circular duct connections
• Several actuator options

Dimensions and weight

Models with rectangular connections

Models with circular connections (D1 or D2)

Weight (kg)

Weight presented without actuator. Basic actuator weight about 1 kg.

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 15×15 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.

Standard actuator options

NM-models
Torque, damper size … 10 Nm (A<1.2 m²)
Manual override operation,mechanical position limit

BFN-models
Torque, damper size … 9 Nm (A<1.2 m²)
Spring return, manual operation, position limit

BF-models
Torque, damper size …18 Nm / 12 Nm (A<2.5 m²)
Spring return, manual operation, position limit

SF-models
Torque, damper size … 20 Nm (A<4 m²)
Spring return, manual operation, position limit

SM-models
Torque, damper size … 20 Nm (A<3.3 m²)
Manual override operation, mechanical position limit

GM-models   Torque, damper size …40 Nm (A<6 m²)
Manual override operation

Special actuators

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

Install the damper in the ductwork with the blades in horisontal or vertical position.
Fasten the damper in the ductwork using slip joints (SF=NA).

Optional models enable fastening the damper to duct flange by using bolts (SF=R2).
Drill holes in the damper flange if necessary (options SF=L1 / SF=L2).
Use a seal between the flanges in order to tighten the seam.

Fasten the models with circular connections by riveting or screwing.

Wiring:

Specification

The casing and blades are made from galvanised steel or stainless steel (EN 1.4404/AISI 316L).
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 (mm)
100,+1,..,2400

H = Height (mm)
100,+1,..,2400

D = Connection size for circular model (mm)
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    Slip joints
L1     Slip joints + flange connection
L2     Flange connection, both sides
R2    Flange connection, both sides with holes
P1    Flange P30
P2    Flange P30 with FDL drilling
P3    Flange connection with FDL drilling (Marine)

MA = Material
CS     Steel
AS     Stainless steel (EN 1.4404/AISI 316L)

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

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

MO = Actuator
NA     Not assigned
MA     Manual handle
E1      BF24 (no fuse), 24V, 18 Nm
E3      BF230 (no fuse), 230V, 18 Nm
E7      BF120 (no fuse), 120V, 18 Nm
M1     BFN24-HL (no fuse), 24V, 9 Nm / 7 Nm
M2     BFN230-HL (no fuse), 230V, 9 Nm / 7 Nm
P0     Pneumatic, Rot.AT101
A1     SM24A (on-off), 24V, 20 Nm
A2     SM24A-S (on-off), 24V, 20 Nm
A3     SM230A (on-off), 230V, 20 Nm
A4     SM230A-S (on-off), 230V, 20 Nm
A5     SM24A-SR (modulating), 24V, 20 Nm
A6     SF24A (on-off), 24V, 20 Nm
A7     SF24A-S2 (on-off), 24V, 20 Nm
A8     SFA (on-off), AC 24-240V/DC 24-125V, 20 Nm
A9     SFA-S2 (on-off), AC 24-240V/DC 24-125V, 20 Nm
A0     SF24A-SR (modulating), 24V, 20 Nm
A11   SF24A-MP (modulating), 24V, 20 Nm
C1     NM24A (on-off), 24V, 10 Nm
C2     NM230A (on-off), 230V, 10 Nm
C3     NM24A-SR (modulating), 24V, 10 Nm
M3    SM24A-MA (modulating), 24V, 20 Nm
G1    GM24A (on-off), 24V, 40 Nm
G2    GM230A (on-off), 230V, 40 Nm
M4    InMax-15-SF, VAC/DC 24…240 V, 15 Nm
M5    NFA-S2, AC 24-240V/DC 24-125V, 10 Nm
K1     FIC actuator

AC = Accessories
BA    Bar adjustment
S4     S2A Auxiliary switch
L1     Limit switch, 1 pc (IP65)
L2     Limit switch, 2 pcs (IP65)
AR    Position indication arrow
WH   Connector (Marine/Wieland)
WB   Connector (Marine/Wieland Blue1, MAC)
TG     Tag

ZT  = Tailored product
N       No
Y       Yes (ETO)

Code example

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