JL multileaf damper
Multileaf dampers & weather resistant louvres

JL multileaf damper

The JL multileaf dampers are used as airtight throttle and shut-off dampers in ventilation and air conditioning systems with minimal leakage. Their hollow body blades are coupled in opposite directions via an external linkage. The JL multileaf damper can also be supplied in very large sizes for your ventilation system. They are operated by a control lever or by adjusting an electric drive.

Technical details

  • Throttle and shut-off dampers for air volume flows in ventilation systems
  • Air-tight multileaf damper according to DIN 1946-4
  • Hollow body blades with flow-optimized profile, sealed and coupled in opposite directions
  • Particularly suitable for installation in hospitals
  • Actuation: manual with control lever, electric actuator
  • Hygiene certificate available

Declarations & proofs

Hygiene certificate

Product details

The JL multileaf dampers are used as throttle and shut-off dampers in ventilation and air conditioning systems with minimal leakage. They are equipped with a 180 mm long frame with chamfered connection flanges.

Leak tightness classes JL multileaf damper

The multileaf damper has a leakage class 4 for the damper blade in accordance with DIN EN 1751 at 100 [Pa] static pressure difference. Its casing has leakage class C in accordance with this standard.

Hollow body blades, coupling linkage

The hollow body blades of the JL multileaf damper are sealed and coupled in opposite directions by an external linkage. The blades are mounted in special brass bushings.

Actuating lever, actuators

Actuation is possible with an actuating lever or, alternatively, by means of an electric actuator, either reversible or spring-return.

Dimensions JL multileaf damper

The product is characterized by the fact that it can be adapted to the requirements of your ventilation system and also supplied in very large sizes. JL multileaf dampers are available in sizes (W x H) from 200 mm x 180 mm to 2,000 mm x 1,995 mm.

Product markings

The JL multileaf damper is marked with a hygiene certificate from an independent external testing institute.

Option

Factory combination of JL multileaf damper with weather resistant louvres W, AW and AWE

Technical specifications

Not all of the variant values listed here can be combined with each other. Use our Wildeboer configurator to easily check the available options.

Width
  • 200 mm
  • 300 mm
  • 400 mm
  • 500 mm
  • 600 mm
  • 700 mm
  • 800 mm
  • 1000 mm
  • 1200 mm
  • 1400 mm
  • 1600 mm
  • 1800 mm
  • 2000 mm
Height
  • 180 mm
  • 345 mm
  • 510 mm
  • 675 mm
  • 840 mm
  • 1005 mm
  • 1170 mm
  • 1335 mm
  • 1500 mm
  • 1665 mm
  • 1830 mm
  • 1995 mm
Installation subframe
  • Without installation subframe
  • With installation subframe
Lagermaterial
  • Messing

Product pictures

JL multileaf damper turned half-way from the front to the left
JL multileaf damper viewed from the side
JL multileaf damper viewed from behind, turned halfway to the right
JL multileaf damper viewed from behind
JL multileaf damper turned half-way from behind to the left
JL multileaf damper viewed from the side
JL multileaf damper turned half-way from the front to the right
JL multileaf damper from the front
References
JL multileaf damper can be found in these buildings