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Product / FDV

Halton FDV – Fire valve (E 120 S)

Basic valve look, effective function.

  • Possible to install in concrete, masonry, or lightweight wall with fire resistance of ES 120 or EIS15 in concrete slab EIS 30
  • Suitable for vertical and horizontal installation
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  • Possible to install in concrete, masonry or lightweight wall with fire resistance of
    E 120 (ve – ho ) S or EI 15 (ve ) S in concrete slab EI 30 (ho ) S
  • Suitable for vertical and horizontal installation Ve, Ho
  • Fuse 72 °C inside cone
  • The integral installation frame is equipped with a sealing gasket and fire seal at its flange.
  • Manufactured in accordance with ISO 9001 quality system.

Quick selection

Dimensions and weight

100 139 88 99
125 165 88 124
160 200 88 159
200 251 86 199


NS kg
100 0.4
125 0.5
160 0.7
200 1.0


Part Material Note
Collar Steel Epoxy painted
Central cone Steel Epoxy painted
Frame gasket Polyurethane
Fireproof gasket Silicate
Installation frame Galvanised steel
Melting fuse Brass


The Halton FDV is a circular fire valve. It prevents fire and smoke from spreading in ventilation ducts.

Operation as an exhaust valve normal mode
The valve throttles the exhaust airflow and attenuates the duct noise. The pressure drop is dependent on the position of the central cone. The desired exhaust rate is set during the balancing of the air flows in a ductwork system.

Operation as a fire damper emergency mode
The fire damper contains an integral thermal fuse. This fuse responds to a rise in temperature, which causes a spring-return central cone to close.

The thermal fuse is released at 72°C.



1.  Lightweight wall
2.  Concrete or masonry wall or ceiling
3.  Fire-stop mass (Würth Firebreak 22)
4.  Screws
5.  Fireproof silicate gaskets

The Halton FDV fire valve is approved for installation on concrete or masonry walls and ceilings and on lightweight walls.

Make an opening in the separating element for the air duct to be led through the structure.
The size of the installation opening is D + 20 mm.

Install the duct in the opening. Create the fire seal between duct and wall with a fire-stop mass (Würth Firebreak 22) and rockwool as indicated in the picture. Cut the duct flush with the wall surface.

Push the installation frame into the duct so that the flange is firmly pressed against the wall surface. Attach the installation to the duct and wall with two screws.

Push the valve (2) into the installation frame (1), and turn until it is firmly attached.

Detailed installation instructions, as well as an installer’s installation certificate form, are supplied with each product. For further information see also tab Documents / Installation Instructions .


The Halton FDV valve is adjusted by rotating the central cone. Measure the opening (A) position (in mm) of the central cone. Set a probe inside the valve, and measure the differential pressure with a manometer. The air flow rate is calculated by using the formula below. After the adjustment, lock the central cone with the locking nut.

FDV 100 FDV 125 FDV 160 FDV 200
A k A k A k A k
-15 0,43 -15 0,65 -12 1,16 3 1,78
-12 0,63 -12 0,92 -9 1,51 6 2,46
-9 0,83 -9 1,22 -6 1,9 9 3,24
-6 1,02 -6 1,53 -3 2,31 12 3,97
-3 1,22 -3 1,84 0 2,75 15 4,69
0 1,42 0 2,17 3 3,25 20 5,88
3 1,65 3 2,52 6 3,73 25 6,95
6 1,88 6 2,83 9 4,22
9 2,11 9 3,14 12 4,67
12 2,33 12 3,46 15 5,12
15 3,77 18 5,58


1.  Central cone
2.  Fuse
3.  Collar
4.  Locking nut
5.  Frame

Loosen the Halton FDV valve from the ductwork by turning anti-clockwise. Note the adjusted opening position of the central cone.

Wipe the parts with a damp cloth, instead of immersing in water. After cleaning, reattach the valve by pushing it into the installation frame and turning it until it is firmly attached.

Note: Do not use hot water or high temperatures during cleaning, as this could cause unnecessary release of the fuse.


The technical properties of the type-approved fire valve conforms to the EN 1366-2 and EN 135013 standards.
The valve has fire resistance class E 120 (ve – ho ) SEI 15 (ve ) S
for lightweight concrete or masonry walls.
The valve has fire resistance class E 120 (ve – ho ) SEI 30 (ho ) S
for installation on concrete slabs.

The fire valve is equipped with a thermal fuse and release spring and with fire sealing.
The integral installation frame is equipped with a sealing gasket and fire seal at its flange.
It is possible to install the valve from the room side.

The fire valve has an adjustable central cone and collar made of epoxy-painted steel, with white (RAL 9003) as the standard colour.

The opening position of the central cone is adjusted during balancing in order to achieve the required pressure loss and airflow rate. After balancing, the central cone is locked into the selected adjustment position.

The internal quality control system of the fire damper manufacturer is based on the ISO 9001 system. The manufacturer’s operations is subject to external third-party quality control by Eurofins Expert Services Oy.

Order code


D = Duct connection size (mm)
100, 125, 160, 200

Other options and accessories

CO = Colour
SW    Signal white (RAL 9003)
X        Special colour (RAL xxxx)

FU = Fuse release temperature (°C)

ZT = Tailored product
N        No
Y        Yes (ETO)

Code example

FDV-100, CO=SW, FU=72, ZT=N


  • Halton FDV – Fire valve (E 120 S)



    Shape 2
  • Halton FDV – Palorajotinventtiili



    Shape 2
  • Halton FDV – Brandventil



    Shape 2
  • Installation instructions – Halton FDV


    English (en)
    Shape 2
  • Declaration of Performance (DoP) – Halton FDV


    English (en)
    Shape 2
  • Suoritustasoilmoitus (DoP) – Halton FDV


    Suomi (fi)
    Shape 2
  • Palo- ja savunhallintapeltien asennustodistus


    Suomi (fi)
    Shape 2
  • Installation Certificate for Fire Dampers (used in UK)


    English (en)
    Shape 2
  • Construction Product Regulation (CPR) – Fire dampers


    English (en)
    Shape 2
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