Type JZ – Low leakage

For low-leakage shut-off in air conditioning systems

 

Rectangular multileaf dampers for volume flow and pressure control as well as for low-leakage shut-off of ducts and openings in walls and ceiling slabs

  • Maximum dimensions of steel and stainless steel variants: 2000 × 1995 mm; of aluminium variant: 1200 × 1050 mm
  • Closed blade air leakage to EN 1751, classes 1 – 4, depending on variant
  • Casing air leakage to EN 1751, class C
  • Aerofoil opposed action blades
  • Closed cell side seals meet increased hygiene requirements
  • Steel and stainless steel variants: blades interconnected by external linkage
  • Aluminium variant: blades interconnected by gears
  • Available in standard sizes and many intermediate sizes


Optional equipment and accessories

  • Actuators: Open/Close actuators, modulating actuators
  • Explosion-proof construction with pneumatic actuator or spring return actuator (not for JZ-*L-AL)
  • Powder-coated construction
  • Aluminium variant also as anodised construction
small_tab1_Serie JZ luftdicht
  • Application
  • Description

Application

  • Multileaf dampers of Type JZ-Low leakage are used as an acting element in the volume flow and pressure control in air conditioning systems
  • For low-leakage shut-off of ducts and openings in walls and ceiling slabs
  • Stainless steel and powder-coated constructions with increased corrosion resistance if required
  • Temperature resistant up to 100 °C (steel and stainless steel construction variants)
  • Steel and stainless steel variants with brass or stainless steel bearings are suitable for use in potentially explosive atmospheres (ATEX)

Special characteristics

  • Aerofoil blades
  • Low-maintenance, robust construction
  • No parts with silicone
  • Available in standard sizes and many intermediate sizes
  • Closed cell side seals meet increased hygiene requirements

Variants

  • JZ-LL: Multileaf damper with opposed blade action, made of galvanised sheet steel, to EN 1751, classes 3 – 4
  • JZ-HL: Multileaf damper with opposed blade action, made of galvanised sheet steel, to EN 1751, classes 1 – 2
  • JZ-LL-A2: Multileaf damper with opposed blade action, made of stainless steel, to EN 1751, classes 3 – 4
  • JZ-LL-AL: Multileaf damper with opposed blade action, made of aluminium, to EN 1751, class 4
  • JZ-HL-AL: Multileaf damper with opposed blade action, made of aluminium, to EN 1751, class 2

Attachments

  • Quadrant stays and limit switches: Quadrant stays to adjust the damper blades (stepless adjustment) and for capturing the end positions
  • Open/Close actuators: Actuators for opening and closing multileaf dampers
  • Modulating actuators: Actuators for stepless blade adjustment
  • Pneumatic actuators: Pneumatic actuators for opening and closing multileaf dampers
  • Explosion-proof actuators: Actuators for opening and closing multileaf dampers installed in potentially explosive atmospheres

Accessories

  • Installation subframe: Installation subframe for the fast and simple installation of multileaf dampers

Información técnica

  • Function
  • Technical data
  • Quick sizing
  • Specification text
  • Order code

Functional description

Linkage

Low-leakage multileaf dampers with external linkage have opposed action blades.

An external linkage transfers the synchronous rotational movement from the drive arm to the individual blades. Even very large multileaf dampers can be safely opened and closed with this type of linkage.

Opposed action blades close at different speeds since the linkage includes a transverse link. This facilitates the closing process and reduces the closed blade air leakage.


Gears

Multileaf dampers with gears can only have opposed action blades.

The internal gears transfer the synchronous rotational movement from the drive arm to the individual blades.

jz_ll
jz_ll

 

Rectangular multileaf dampers for volume flow and pressure control as well as for low-leakage shut-off of ducts and openings in walls and ceiling slabs.

Suitable for duct pressures up to 1000 Pa.

Ready-to-operate unit which consists of the casing, aerofoil blades and the blade mechanism.

Flanges on both sides, suitable for duct connection.

The blade position is indicated externally by a notch in the blade shaft extension.

Closed blade air leakage to EN 1751, class 4.

Casing air leakage to EN 1751, class C.

Special characteristics

  • Aerofoil blades
  • Low-maintenance, robust construction
  • No parts with silicone
  • Available in standard sizes and many intermediate sizes
  • Closed cell side seals meet increased hygiene requirements

Technical data

  • Nominal sizes: 200 × 100 mm – 2000 × 1995 mm
  • Volume flow rate: 200 – 40,000 l/s or 720 – 143,640 m³/h at 10 m/s
  • Differential pressure range: 5 – 3500 Pa
  • Operating temperature: 0 to 100 °C
jz_ll

Compartir

Recomendar

Recomendar el contenido de esta página, mandar por mail.

Los campos marcados con un (*) sin imprescindibles de cumplimentar

Compartir

Gracias por su recomendación!

Su recomendación ha sido enviada y llegará a su destino en breve.


Contacto

Estamos aquí para atenderles

Visual contact Visual contact

Por favor mande su solicitud
Tel.: +34 976 50 02 50 | Fax: +34 976 50 09 04

Los campos marcados con un (*) sin imprescindibles de cumplimentar

Contacto

Gracias por su mensaje.

Visual contact Visual contact

Su mensaje ha sido enviado correctamente, en breve será atendido.
En seguida nos pondremos en contacto con Vd.
Para información general sobre productos o servicios, por favor llamar al:
Tel.: +34 976 50 02 50 | Fax: +34 976 50 09 04

Contacto

Estamos aquí para atenderles

Visual contact Visual contact

Por favor mande su solicitud
Tel.: +34 976 50 02 50 | Fax: +34 976 50 09 04

Archivo adjunto (Max. 10MB)

Los campos marcados con un (*) sin imprescindibles de cumplimentar

Contacto

Gracias por su mensaje.

Visual contact Visual contact

Su mensaje ha sido enviado correctamente, en breve será atendido.
En seguida nos pondremos en contacto con Vd.
Para información general sobre productos o servicios, por favor llamar al:
Tel.: +34 976 50 02 50 | Fax: +34 976 50 09 04