JZ – Low leakage | TROX Middle East (LLC)

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

Application

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
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

Description

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

Technical information

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.

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
Differential pressure range: 5 – 3500 Pa
Operating temperature: 0 to 100 °C

Attachments

Type Quadrant stays and limit switches
Type Open/Close actuators
Type Modulating actuators
Type Pneumatic actuators
Type Explosion-proof actuators

Accessories

Type Installation subframes

Downloads

product information

TROX Services

Productsearch A-Z Find out quickly and simply.

TROX Easy Product Finder Fast. Reliable. Innovative.

Tour de Competence Competence - exciting staged.

production {"X-Frame-Options"=>"SAMEORIGIN", "X-XSS-Protection"=>"1; mode=block", "X-Content-Type-Options"=>"nosniff", "X-Download-Options"=>"noopen", "X-Permitted-Cross-Domain-Policies"=>"none", "Referrer-Policy"=>"strict-origin-when-cross-origin", "Strict-Transport-Security"=>"max-age=31536000; includeSubDomains", "Content-Type"=>"text/html; charset=utf-8"}

Your recommendation has been sent and should arrive shortly.

Please specify your message and type of request.
Tel.: +971 4 3417448 | Fax: +971 4 3417449

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.: +971 4 3417448 | Fax: +971 4 3417449

Please specify your message and type of request.
Tel.: +971 4 3417448 | Fax: +971 4 3417449

By clicking the button, you allow us to provide you with an excellent website experience and easy shopping processes. These cookies include ones that are necessary for the operation of the site and for the control of our services and applications, as well as ones that are used solely for statistical purposes, for convenience settings or to display personalized content. You can decide which categories you want to allow and you can adjust the data utilisation settings based on your individual requirements. Please note that, depending on the settings that you have selected, all functionalities of the page might not be available. You can change your selection at any time.

TECHNICALLY NECESSARY

These cookies are necessary for the proper functioning of our website and cannot be disabled. As a rule, these cookies are set only in response to actions taken by you, such as setting your privacy preferences or filling the shopping cart. In addition, security-relevant functionalities or support via a dedicated webchat are integrated, including all session cookies from TROX set after you log in as a customer. You can set your browser to block these cookies or notify you about them. As a result, however, some areas of the website might not function as intended.

STATISTICS AND WEBSITE ANALYSIS

These cookies make it possible to collect data for statistics and analysis so that TROX can measure the performance of the websites visited, identify technical problems and find starting points for optimisation. They may be set by us or by third parties whose services we use on our sites. Users also help to identify, for example, which pages are used most frequently or only rarely or how people navigate between web pages. All information used by third parties is aggregated and anonymised.

CONVENIENCE AND PERSONALISATION

These cookies are used to facilitate the operation of the website. Based on a previous product search, for example, we conveniently provide related content and suggestions when you visit again. We also display content tailored to websites visited or products purchased. This category also controls whether or not videos from the Vimeo platform are automatically loaded.

FOR THE BEST TROX EXPERIENCE

POLICY