TR2X

4 different blade

arrangements

3 different fixing types

Installation into circular air

ducts

Ventilation grilles, made of stainless steel, with adjustable blades

The high-quality ventilation grille blends perfectly into any room.

■ Suitable for comfort and industrial areas for walls, sills, circular or rectangular

air ducts

■ Are mostly resistant to aggressive environmental influences and cleaning

agents

■ Retain their good appearance for years, do not require surface protection and

do not become statically charged

■ Single piece available in the nominal sizes 225 × 75 to 825 × 325 mm

■ Adjustable blades for air direction control

■ Uniform air distribution, easy to realise thanks to various attachments

■ Simple mounting options for quick and easy installation

Options

■ Filter element

■ Mounting kit for volume flow rate balancing

■ Linear grille

General information

Application

Ventilation grille type TR2X as air diffuser (supply and extract air) for comfort zones and industrial zones
Directed supply air flow for mixed flow ventilation
Blades are adjustable to meet different local requirements
For constant and variable volume flows
For supply air to room air temperature differences from –12 to +4 K
For installation in walls, sills, circular or rectangular air ducts

Special characteristics

Individually adjustable blades
Countersunk hole, concealed screw fixing without installation subframe, unperforated front border without factory-fitted mounting option
Filter element for extract grille optional

Nominal sizes

Width [mm]

225, 325, 425, 525, 625, 825

Height [mm]

75, 125, 225, 325

Grille for installation into circular ducts (R/RA versions)

Width [mm]
225, 325, 425, 525, 625, 825

Height [mm]

75, 125, 225

Variants

Horizontal, vertical or vertical and horizontal blade arrangements
Linear grille consisting of end and centre sections that are assembled on site
Grille for wall, sill and duct installation or for installation in circular air ducts
Concealed screw fixing without installation subframe (do not use in aggressive air and/or in high humidity)
Countersunk hole in front border
Non-perforated front border, without factory-fitted mounting option

Attachments
Volume flow rate balancing on site

AG: Damper element with opposed action blades
AS: Hit and miss damper made of aluminium (parallel slide damper)
SAS: Slanted hit and miss damper made of aluminium (only suitable for supply air)

Parts and characteristics

Front border made of flanged profile
Individually adjustable, horizontal and / or vertical blades
Perimeter seal, factory-fitted
Vertical centre mullion for nominal widths over 625 mm

Accessories

Filter element for extract grille

Construction features

Front frame profile 25 x 40 mm with bevelled edge to cover the installation opening
Profiled blade, manually adjustable
Fixed connection between attachment and ventilation grille via screw connection

Suitable air duct diameters

Ø125 - 2000 mm

Note: The possible air duct diameters are reduced depending on the grille height.

Material

Front border made of stainless steel type 1.4404
Blades made of stainless steel type 1.4401
Small parts made of stainless steel type 1.4301
PES filter
Foam seal
Stainless steel mounting kit AG
AS and SAS mounting kits made of aluminium

Surfaces

Front border and blades chemically stained
Front border and blades electropolished
Front border and blades powder-coated in RAL 9010 pure white, GU50
Front border and blades powder-coated according to RAL CLASSIC colour palette, GU70

Maintenance

Low maintenance as construction and materials are not subject to wear and tear
Inspection and cleaning according to VDI 6022

Standards and guidelines

Sound power level of the air-regenerated noise measured according to EN ISO 5135
Filter class ISO Coarse 45% to ISO 16890 (G3)

Tekniske informationer

Schematic illustration of ventilation grille TR2X-V-AG

1 Front border

2 Vertical blades

3 Attachment damper element, opposed action blades

4 Countersunk hole

5 Stainless steel surface

Grille installation with ceiling effect (side view)

Grille installation with ceiling effect (top view)

Grille installation without ceiling effect (side view)

Grille installation without ceiling effect (top view)

Ventilation grilles are air terminal devices for the supply air and extract air of ventilation and air conditioning systems. They direct the supply air into the room. Ventilation grilles with adjustable blades allow for adapting the discharge direction to the local conditions. The result is a mixed flow ventilation in comfort zones and industrial zones, with good overall room ventilation. Due to induction, the air velocity of the supply air flow decreases with increasing distance from the ventilation grille. The distance at which the airflow velocity reaches a certain defined value, e.g. 0.35 m/s, is called throw distance. The supply air flow from wall grilles that are arranged close to the ceiling achieves a greater throw distance than a comparable free jet (without ceiling influence), due to the ceiling effect. Single grilles, groups of grilles and linear grilles all achieve different throw distances. In cooling mode, it is necessary to consider the jet deflection towards the occupied zone, which increases as the supply air to room air temperature difference increases and the discharge velocity decreases. In heating mode, the supply air jet is deflected towards the ceiling. This has no negative effect on the airflow velocity in the occupied zone, but it may affect the overall ventilation of the room.

Nominal sizes	225 × 75 - 825 × 325
Minimum volume flow rate	11 - 270 l/s or 40 - 972 m³/h
Maximum volume flow rate, with LWA max. 40 dB(A) without attachments	53 - 1111 l/s or 189 - 4000 m³/h
Supply air temperature	-12 to +15 K

Volume flow rate indication for single grilles (undivided construction) for supply air.

The individual sizing of the ventilation and acoustic data for the different variants is possible with our free design programme Easy Product Finder.

Geometric free area (blade arrangement VH, HV) Ageo [m2]

H/B	225	325	425	525	625	825
75	0.008	0.012	0.015	0.019	0.023	0.031
125	0.015	0.023	0.031	0.039	0.046	0.062
225	0.031	0.046	0.062	0.077	0.092	0.123
325	–	0.069	0.092	0.115	0.139	0.185

Geometric free area (blade arrangement V) Ageo [m2]

H/B	225	325	425	525	625	825
75	0.008	0.012	0.016	0.02	0.024	0.032
125	0.016	0.024	0.032	0.04	0.048	0.063
225	0.032	0.048	0.063	0.079	0.095	0.127
325	–	0.071	0.095	0.119	0.143	0.19

Geometric free area (blade arrangement H) Ageo [m2]

H/B	225	325	425	525	625	825
75	0.008	0.012	0.016	0.021	0.025	0.033
125	0.016	0.025	0.033	0.041	0.049	0.066
225	0.033	0.049	0.066	0.082	0.098	0.131
325	–	0.074	0.098	0.123	0.148	0.197

Effective air inflow area supply air (blade arrangement VH, HV) Aeff [m2]

H/B	225	325	425	525	625	825
75	0.007	0.011	0.015	0.019	0.022	0.03
125	0.015	0.022	0.03	0.037	0.045	0.06
225	0.03	0.045	0.06	0.075	0.09	0.12
325	–	0.067	0.09	0.112	0.135	0.18

Effective air inflow area supply air (blade arrangement V) Aeff [m2]

H/B	225	325	425	525	625	825
75	0.008	0.012	0.015	0.019	0.023	0.031
125	0.015	0.023	0.031	0.039	0.046	0.062
225	0.031	0.046	0.062	0.077	0.093	0.124
325	–	0.07	0.093	0.116	0.139	0.185

Effective air inflow area supply air (blade arrangement H) Aeff [m2]

H/B	225	325	425	525	625	825
75	0.008	0.012	0.016	0.02	0.024	0.032
125	0.016	0.024	0.032	0.04	0.048	0.064
225	0.032	0.048	0.064	0.08	0.096	0.128
325	–	0.072	0.096	0.12	0.144	0.192

Effective air inflow area return air (blade arrangement V) Aeff [m2]

H/B	225	325	425	525	625	825
75	0.006	0.009	0.011	0.014	0.017	0.023
125	0.011	0.017	0.023	0.028	0.034	0.045
225	0.023	0.034	0.045	0.057	0.068	0.091
325	–	0.051	0.068	0.085	0.102	0.136

Effective air inflow area extract air (blade arrangement H) Aeff [m2]

H/B	225	325	425	525	625	825
75	0.006	0.009	0.012	0.015	0.018	0.023
125	0.012	0.018	0.023	0.029	0.035	0.047
225	0.023	0.035	0.047	0.059	0.07	0.094
325	–	0.053	0.07	0.088	0.106	0.141

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Specification text

Ventilation grille as supply air or extract air diffuser for the ventilation of rooms in ventilation and air conditioning systems. Consisting of a front border with bevelled edge. Installation preferably in circular or square air ducts, and for wall mounting. Ready-to-install component, consisting of a front border and individually adjustable, vertical and/or horizontal blades. Customised aerodynamic and acoustic design with web configurator.

Material

Front border made of stainless steel type 1.4404
Blades made of stainless steel type 1.4401
Small parts made of stainless steel type 1.4301
PES filter
Foam seal
Stainless steel mounting kit AG
AS and SAS mounting kits made of aluminium

Surfaces

Front border and blades chemically stained
Front border and blades electropolished
Front border and blades powder-coated in RAL 9010 pure white, GU50
Front border and blades powder-coated according to RAL CLASSIC colour palette, GU70

Nominal sizes

Width [mm]

225, 325, 425, 525, 625, 825

Height [mm]

75, 125, 225, 325

Grille for installation into circular ducts (R/RA versions)

Width [mm]

225, 325, 425, 525, 625, 825

Height [mm]

75, 125, 225

Technical data

Design-specific

Standards and guidelines

Sound power level of the air-regenerated noise measured according to EN ISO 5135
Filter class ISO Coarse 45% to ISO 16890 (G3)

Variants

Horizontal, vertical or vertical and horizontal blade arrangements
Linear grille consisting of end and centre sections that are assembled on site
Grille for wall, sill and duct installation or for installation in circular air ducts
Concealed screw fixing without installation subframe (do not use in aggressive air and/or in high humidity)
Countersunk hole in front border
Non-perforated front border, without factory-fitted mounting option

Accessories

Filter element for extract grille

Equivalence criteria

Adjustable air pattern
Grille available in various colours
Optional air direction control via factory-set blades
Optional various attachments for restricting and balancing the grilles
Ventilation data and acoustic data verified by laboratory measurements
Dust and scratch protection thanks to individual packaging for up to 30 pieces
Various mounting options for common application areas
Stainless steel materials with refined surface

Manufacturer of the product

TROX GmbH

Serie

TR2X

–

525 x 125

1 Type
TR2X Stainless steel ventilation grille

2 Variant

No entry required: Single grille

E End section

M Centre section

3 Construction

No entry required: Installation into walls, sills or ducts

R Installation into circular ducts (large duct diameters)

RA Installation into circular ducts with small Ø and additional bend (small duct diameters)

4 Front border

No entry required: Profile 25 × 40 mm with bevelled edge

5 Blade arrangement

V Vertical front blade

H Horizontal front blade

VH Vertical front blade, horizontal air deflection

HV Horizontal front blade, vertical rear blade

6 Nominal size [mm]

Specify width × height

7 Attachment

Suitable for supply air and extract air

No entry required: Without attachment (front grille only)

AG Damper unit, opposed action blades

AS Hit and miss damper (parallel slide damper)

Only suitable for supply air

SAS Slanted hit and miss damper

8 Filter

Suitable for extract air

No entry required: Without filter element

EF With filter element (not with SAS attachment)

9 Fixing

No entry required: Countersunk holes in front border

SP Concealed screw fixing without installation subframe

NO No factory-fitted mounting option (unperforated front border)

10 Air discharge

No entry required: Air direction control 0°

44 Air direction control 44°

84 Air direction control 84°

110 Air direction control 110°

140 Air direction control 140°

GEG Opposed

11 Surface

P1 Powder-coated; specify RAL-CLASSIC colour, GU 70

PS Powder-coated; specify NCS colour and gloss level

S8 Electropolished

S9 Chemically stained (standard)

Order example: TR2X-R-V/525x125/AG/EF/NO/S8

Type	TR2X – Stainless steel ventilation grille
Variant	Single grille
Construction	Installation into circular ducts (large duct diameters)
Front border	Profile 25 x 40 mm with bevelled edge
Blade arrangement	Vertical front blade
Nominal size [mm]	Width 525, height 125
Attachment	Damper unit, opposed action blades
Filter	with filter element
Fixing	No factory-fitted mounting option
Air discharge	Air direction control 0°
Surface	Electropolished

Downloads

Produktoplysninger

Product data sheet TR2X

TR2X_PD_2025_07_15_DE_en Product data sheet 720 KB pdf

Certifikater

Declaration of hygiene conformity TR2X

TR2X_HC_2024_08_CH_en Declaration of hygiene conformity 840 KB pdf
Manufacturer's statement TR2X

TR2X_CE_MS_2024_08_CH_en Manufacturer's statement 750 KB pdf

Brugsanvisninger

Installation manual TR2X

TR2X_IM_CD10093_V3_2025_05_GB_en Installation manual 1,3 MB pdf

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.

TR2X

Ventilation grilles, made of stainless steel, with adjustable blades

General information

Tekniske informationer

Geometric free area (blade arrangement VH, HV) Ageo [m2]

Geometric free area (blade arrangement V) Ageo [m2]

Geometric free area (blade arrangement H) Ageo [m2]

Effective air inflow area supply air (blade arrangement VH, HV) Aeff [m2]

Effective air inflow area supply air (blade arrangement V) Aeff [m2]

Effective air inflow area supply air (blade arrangement H) Aeff [m2]

Effective air inflow area return air (blade arrangement V) Aeff [m2]

Effective air inflow area extract air (blade arrangement H) Aeff [m2]

Downloads

Produktoplysninger

Product data sheet TR2X

Certifikater

Declaration of hygiene conformity TR2X

Manufacturer's statement TR2X

Brugsanvisninger

Installation manual TR2X

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

FOR THE BEST TROX EXPERIENCE