Type JZ

For shutting off the airflow in air conditioning systems

 

Rectangular multileaf dampers for volume flow and pressure control as well as for shutting off 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
  • Casing air leakage to EN 1751, class C
  • Aerofoil parallel or opposed action blades
  • Steel and stainless steel variants: blades interconnected by external linkage (for parallel or opposed blade action)
  • Aluminium variant: blades interconnected by gears (for opposed action)
  • Installation with horizontal or vertical blades
  • Available in standard sizes and many intermediate sizes
  • Can be combined with external weather louvres


Optional equipment and accessories

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

Application

  • Multileaf dampers of Type JZ are used as an acting element in the volume flow and pressure control in air conditioning systems
  • For shutting off ducts and openings in walls and ceiling slabs
  • Parallel action blades are preferably used for opening/closing
  • Opposed action blades are due to their characteristics preferably used for variable operation
  • Stainless steel and powder-coated constructions with increased corrosion resistance
  • Temperature resistant up to 100 °C; beyond 100 °C with brass or stainless steel bearings (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

Variants

  • JZ-S: Multileaf damper with opposed blade action, made of galvanised sheet steel
  • JZ-P: Multileaf damper with parallel blade action, made of galvanised sheet steel
  • JZ-S-A2: Multileaf damper with opposed blade action, made of stainless steel
  • JZ-P-A2: Multileaf damper with parallel blade action, made of stainless steel
  • JZ-AL: Multileaf damper with opposed blade action, made of aluminium

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

Technical information

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

Functional description

Linkage

Multileaf dampers with external linkage can have parallel action blades or 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
jz

 

Rectangular multileaf dampers for volume flow and pressure control as well as for shutting off 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.

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

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: –20 – 150 °C
jz

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Contact

Thank you for your message!

Visual contact Visual contact

Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265