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Halton PTS – Airflow management damper (single-blade)

The product has three different circular models. From tight shut-off damper to control damper with perforated plate.

  • Shut-off, adjustment, balancing or control damper
  • Casing leakage classification: EN 1751, Class C
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  • Shut-off, adjustment, balancing or control damper
  • Casing leakage classification: EN 1751, Class C
  • Casing and damper blade made of galvanized steel
  • Tightness classification of shut-off damper: EN 1751, Class 4 (PTS/A model)

Product models and accessories

  • Shut-off, adjustment, balancing or control damper
  • Adjustment, balancing or control damper
  • Adjustment, balancing or control damper with perforated blade
  • Several actuator options

Quick selection

Fig.1.  Halton PTS with blade gasket (A)

Fig.2.  Halton PTS without blade gasket (B)

Fig.3.  Halton PTS perforated blade (C)

Dimensions and weight


100 145 70 36 99
125 145 70 36 124
160 145 70 36 159
200 145 70 36 199
250 145 70 36 249
315 145 70 36 314
400 245 175 35 399
500 245 175 35 499

Actuator platform, low (ML)

Actuator platform, high (MH)

Weight (kg)

100 0.5 0.5 0.5
125 0.6 0.6 0.6
160 0.8 0.7 0.7
200 1.1 0.9 0.8
250 1.5 1.1 1.1
315 2.1 1.5 1.4
400 3.3 2.4
500 4.9 3.6



No. Part Material Note
1 Operating
Galvanised steel
2 Actuator platform Galvanised steel
3 Duct gaskets 1C-polyurethane hybrid
4 Casing Galvanised steel
5 Blade and shaft Galvanised steel
6 Blade gasket EPDM rubber Used only in PTS/A model

Product models

There are three different product models, for different purposes:

  • Shut-off, adjustment, balancing or control damper, PTS/A. Tightness classification: EN 1751, Class 4
  • Adjustment, balancing or control damper, PTS/B
  • Adjustment, balancing or control damper with perforated blade, PTS/C

Minimum torque

 Model and size 4 Nm 10 Nm
 PTS/A 100…250 x
PTS/A 315…500 x
PTS/B 100…500 x
PTS/C 100…500 x

Manual operation

Handle for manual operation with blade position locking.

Actuator options

Standard actuators:

Code Name Manufac. Torque
 B1 LM24A Belimo 5 24 VAC/VDC On-off, 2-wire 3 VA/2 W
 B2 LM230A Belimo 5 230 VAC On-off, 2-wire 12 VA/1 W
 B3 LM24A-SR Belimo 5 24 VAC/VDC Modulating
0…10 VDC
4 VA/2 W
 B4 NM24A Belimo 10 24 VAC/VDC On-off, 2-wire 3.5 VA/2 W
 B5 NM230A Belimo 10 230 VAC On-off, 2-wire 18 VA/2 W
 B6 NM24A-SR Belimo 10 24 VAC Modulating
0…10 VDC
3 VA/1.5 W
 B7 LF24 Belimo 4 24 VAC On-off, spring return 7 VA/5 W
 B8 LF230 Belimo 4 230 VAC On-off, spring return 7 VA/5 W
X1 GDB111.1E/KN Siemens 5 24 VAC KNX bus 1 VA/0.5 W
X2 GLB111.1E/KN Siemens 10 24 VAC KNX bus 3 VA/2.5 W
X3 GDB161.1E Siemens 5 AC/DC 24 V Modulating 2.1 VA/1.2W
X4 GLB161.1E Siemens 10 AC/DC 24 V Modulating 2.5 VA/1.5W
X5 GDB141.1E Siemens 5 AC/DC 24 V 2/3 position 2.5 VA/1.1W
X6 GLB141.1E Siemens 10 AC/DC 24 V 2/3 postion 2.0 VA/1.3W
V5 LM24A-VST Belimo 5 AC/DC 24 V Control communicative PP 2 VA/1 W
V6 NM24A-VST Belimo 10 AC/DC 24 V Control communicative PP 4 VA/2 W
M1 BFN24 (Marine) Belimo 9/7 AC/DC 24 V On-off, spring return 6 VA/4 W
M2 BFN230 (Marine) Belimo 9/7 230 VAC On-off, spring return 9 VA/4.5 W
M3 SM24A-MA-C7 (Marine) Belimo 20 AC/DC 24 V Modulating
4…20 mA
6 VA/3.5 W
M4 InMax-15-SF (Marine) Schischek 15/30 24…240 VAC/DC On-off, spring return, 3-point

If other actuator types are required, consult Halton in order to specify the type and manufacturer.

After sales installation of the actuator

Actuator installation on the site is possible with the help of an actuator bed and extension shaft. This enables installation of a universal actuator type. The actuator bed selected can be of standard type when the ductwork is not insulated or of high type if the ductwork is insulated.


Fig.1. Halton PTS/A with actuator (B4 = NM24A)


Fig.2. Actuator with installation kit low (IL) and high (IH)


The Halton PTS unit can operate as a shut-off, control or adjustment damper depending on the product model. This damper is available for circular standard duct sizes 100 mm to 500 mm. Damper position is visually indicated below the operating mechanism.

The Halton PTS/A is a shut-off damper of leakage class 4 according to the EN 1751 standard. It includes rubber gaskets to ensure low leakage flow when the damper is in closed position. The PTS/A is available with a handle for manual operation or with an electric actuator for on-off control or for modulating control using a 0…10 VDC control signal.

The Halton PTS/B can be used for airflow control or adjustment of airflow rates in the ductwork. It includes a steel blade without gasket. The PTS/B is available with a handle for manual operation or with an electric actuator for on-off control or for modulating control using a 0…10 VDC control signal.

The Halton PTS/C is an airflow adjustment damper. The damper blade is a perforated blade that is acoustically and operationally designed for balancing of airflow rates.

The electric actuator is normally installed in the factory on the actuator platform with screws. On-site actuator installation is possible with the help of an actuator installation kit. The actuator installation kit, available as an accessory, includes an actuator platform and extension shaft for universal actuator fixing. The actuator platform and actuator can be installed easily using standard hand tools.

Halton PTS/A


Halton PTS/B


Halton PTS/C




Fasten the damper to the ductwork with, e.g., rivets. Ensure that the rivets do not prevent the operation of the damper. The position of each rivet must be at least 10 mm from the duct end.
External duct gaskets ensure an airtight joint when the damper has been mechanically fastened to the duct with rivets or screws.
The electric actuator (where applicable) is to be connected to the power supply and control signal wires according to the wiring diagram. Examples of connections for the standard actuators are shown in a separate diagram.
The electric actuator can also be installed, when necessary, in an on-site procedure with the help of an actuator platform and universal shaft fitting, available as an accessory:
Remove the operating mechanism (1) by opening the locking screw.
Assemble the actuator platform in the location of the operation mechanism (2) and ensure its stability mechanically by bending the legs of the actuator platform with a hand tool.
The universal actuator fitting enables connection of most actuator types to the shaft (3) (4).
Wire connections are to be performed according to the instruction for the actuator installed.

Electric wire connections



The casing and circular (perforated) blade of the shut-off / adjustment / control damper shall be made of galvanised steel.
The shut-off damper shall meet EN 1751, Class 4 tightness requirements.
External rubber gaskets on the spigot shall provide an airtight connection to circular ductwork.

Order code


S = Model
A    Damper with blade gasket
B    Damper without blade gasket
C    Damper with perforated blade

D = Duct connection size (mm)
100, 125, 160, 200, 250, 315, 400, 500

Other options and accessories

MA = Material
CS     Steel

MO = Actuator type
MA     Manual handle
B1      LM24A, 24 VAC/VDC (on-off), 5 Nm
B2      LM230A, 230 VAC (on-off), 5 Nm
B3      LM24A-SR, 24 VAC/VDC (modulating), 5 Nm
B4      NM24A, 24 VAC/VDC (on-off), 10 Nm
B5      NM230A, 230 VAC (on-off), 10 Nm
B6      NM24A-SR, 24 VAC/VDC (modulating), 10 Nm
B7      LF24, 24 VAC/VDC (on-off, spring return), 4 Nm
B8      LF230, 230 VAC (on-off, spring return), 4 Nm
X1      GDB111.1E/KN (KNX bus), 5 Nm
X2      GLB111.1E/KN (KNX bus), 10 Nm
X3      GDB161.1E AC/DC 24 V, (modulating), 5 Nm
X4      GLB161.1E AC/DC 24 V, (modulating), 10 Nm
X5      GDB141.1E AC/DC 24 V, (2/3 position), 5 Nm
X6      GLB141.1E AC/DC 24 V, (2/3 position), 10 Nm
V5      LM24A-VST, (DC 0/2…10 V), 5 Nm
V6      NM24A-VST, (DC 0/2…10 V), 10Nm
M1     BFN24 (Marine)
M2     BFN230 (Marine)
M3     SM24A-MA-C7 (Marine)
M4     InMax-15-SF (Marine)

AC = Accessories
BA     Bar adjustment
ML     Actuator platform, low
MH     Actuator platform, high
IL       Installation kit for actuator, low
IH       Installation kit for actuator, high
IJ        Actuator platform (for LF actuator)
WB   Connector (Marine/Wieland Blue1, MAC)
WM   Connector (Marine/Wieland Blue2, MAC)

ZT = Tailored product (ETO)
N        No
Y        Yes (ETO)

Code example



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