Picture of the family as saved in the library, model only (one fixed view). It does not change when another type is chosen.
Technical viewThe same family with its connectors, reference lines and dimension labels showing

The family editor's view: connectors, reference planes and labelled dimensions are showing.

Mechanical · Air Terminals · Grilles

Return air grille with plenum box, round duct connection

Library name: Return air grill

ID IBIM-M-ART-RETURN-AIR-GRILL-R25 · file IBIM-M-ART-Return air grill-R25.rfa

Revit
2025
Types
4
Hosting
Not hosted (placed on a level)
Connectors
11
Revit category
Air Terminals

8 checks passed. See what was checked

Request access How to use in Revit

Available on request. Nothing is downloaded or loaded into Revit from this page.

Types

How the types differ

15 parameters out of 41 have a different value in at least one type.

ParameterRAG 300x300RAG 450x450RAG 600x600RAG 1200x130
So nan theo L914193
So nan theo W36818
Số lá van58102
Số mũi tên3346
Ẩn chiều hút đứngYesYesYesNo
Ẩn chiều hút ngangYesYesYesNo
Chiều dài mm300.0450.0600.01200.0
Chiều rộng mm300.0450.0600.0130.0
Ri mm100.0100.0100.0150.0
l1 mm270.0420.0570.0100.0
w1 mm270.0420.0570.01170.0
Diện tích tôn square meters0.4510.7641.1231.006
Model300X300450x450600x6001200x130
Vận tốc cửa hút m/s8.92 m/s3.48 m/s1.84 m/s6.06 m/s
Max Flow L/s0.00 L/s0.00 L/s446.00 L/s0.00 L/s

Parameters of type “RAG 450x450”

41 parameters. Values are those saved in the library file for the selected type. An instance parameter shows its default; it is set per placed element in a project.

1 parameter of the file for authorship or contact details (author, website, e-mail and similar) is not shown.

ParameterValueUnitsScopeCan be edited
Constraints
Default Elevation0.0mmTypeYes
Dimensions
Chiều cao hộp gió350.0mmInstanceYes
Chiều dài450.0mmTypeYes
Chiều rộng450.0mmTypeYes
Diện tích tôn shared0.764square metersInstanceNoSet by a formula in the family
l1420.0mmInstanceNoSet by a formula in the family
Ri100.0mmInstanceYes
w1420.0mmInstanceNoSet by a formula in the family
Graphics
Visible connectorYesYes / NoTypeYes
Identity Data
Assembly CodeNo valueTextTypeYes
CostNo valuecurrencyTypeYes
DescriptionNo valueTextTypeYes
KeynoteNo valueTextTypeYes
ManufacturerNo valueTextTypeYes
Model450x450TextTypeYes
Type CommentsNo valueTextTypeYes
Type ImageNo valueImageTypeYes
IFC Parameters
Export Type to IFC AsNo valueTextTypeYes
Type IFC Predefined TypeNo valueTextTypeYes
Mechanical - Flow
Hệ số80.000000generalInstanceYes
Lưu lượng446.00 L/sL/sInstanceYes
Max Flow0.00 L/sL/sTypeYes
Min FlowNo valueL/sTypeYes
Pressure20.000000 PaPaInstanceYes
Vận tốc cửa hút3.48 m/sm/sInstanceNoSet by a formula in the family
Other
AYesYes / NoInstanceNoSet by a formula in the family
aNoYes / NoInstanceNoSet by a formula in the family
So nan theo L14Whole numberInstanceNoSet by a formula in the family
So nan theo W6Whole numberInstanceNoSet by a formula in the family
Số lá van8Whole numberInstanceNoSet by a formula in the family
Số mũi tên3Whole numberInstanceNoSet by a formula in the family
Ẩn chiều hút ngangYesYes / NoInstanceYes
Ẩn chiều hút đứngYesYes / NoInstanceYes
Ẩn cổ nối mềmNoYes / NoTypeYes
Ẩn hộp gióYesYes / NoInstanceYes
Ẩn nan 1YesYes / NoInstanceYes
Ẩn nan 2YesYes / NoInstanceYes
Ẩn van OBDNoYes / NoTypeYes
Text
Loại cửa sharedNan thẳngTextTypeYes
Van OBD sharedNo valueTextInstanceYes
Vị trí lắp sharedNo valueTextInstanceYes

Category, hosting and compatibility

Revit category
Air Terminals
Catalogue classification
Mechanical › Air Terminals › Grilles
Hosting
Not hosted (placed on a level)
Connectors
  • Duct, round 200 mm, return air × 11
Revit version
Saved in the Revit 2025 format. It opens in Revit 2025 and in later versions, which upgrade it on opening. Revit versions before 2025 cannot open it.
Built from
9 solid forms, 8 nested families

What was checked

8 passed, 5 not checked. Each line says what was looked at and what was found. A passed check is not a statement that the family suits a particular project or meets a standard.

  • Passed
    Opens and saves in Revit 2025

    Opened by Revit 2025, upgraded from the Revit 2017 format, and saved without an error.

  • Passed
    No imported CAD geometry

    None found.

  • Passed
    Types, parameters and connectors kept by the clean-up

    4 type(s), 42 parameter(s), 11 connector(s) before and after. 13 unused item(s) were purged.

  • Passed
    File name follows the iBIM naming standard

    IBIM-M-ART-Return air grill-R25

  • Passed
    Preview picture made from the model

    Rendered from the family's 3D view, model only.

  • Passed
    Revit category matches the catalogue classification

    Revit category: Air Terminals.

  • Passed
    Has a connector to join a system

    11 connector(s): Duct, round 200 mm, return air x 11.

  • Passed
    Types are named

    4 named type(s).

  • Not checked
    Loading and placing in a project

    The family was opened on its own. It was not loaded into a project, placed or connected to a system.

  • Not checked
    Schedules and tags

    Whether the parameters report correctly in schedules and tags was not tested.

  • Not checked
    Sizes against product data

    Dimensions and performance values were not compared with any manufacturer's or standard's data.

  • Not checked
    Performance in large models

    File weight in a full project model was not measured.

  • Not checked
    Classification codes

    Uniclass, COBie or other classification data in the family was not reviewed.

File checked
IBIM-M-ART-Return air grill-R25.rfa
Fingerprint
2868d1eb3d49 first 12 characters of the file's SHA-256
Checked on
2026-10-12
Checked with
Revit 2025 (build 25.5.0.57)
File size
912 KB
History
Upgraded from the Revit 2017 format. 13 unused items were removed when the library copy was made.

Availability and next step

Availability
On request. Our team checks each request and replies within one business day. This website has no download.
Permitted use
Not stated on this page. The terms are agreed with iBIM Group when access is given.

Request access How to use in Revit

  1. FindThe catalogue
  2. InspectThis page
  3. Select typesShowing “RAG 450x450”
  4. Configure a working copyNot available on the website
  5. ValidateThe checks above cover the library file only
  6. Load into RevitAn explicit step in Revit, after access

How to use a family in Revit

  1. Find and inspect. Open a family here to see its types, parameters, hosting and what was checked. Browsing this website never loads anything into a Revit project.
  2. Request access. Use Request access on the family's page. Our team checks the request and replies within one business day. No file is sent automatically.
  3. With the iBIM Revit plug-in. Open the iBIM tab > iBIM Family > Family Library, choose the family and load it into your model. A family that is already in the model is never overwritten.
  4. Without the plug-in. Load the family file we send you with Revit's own Insert > Load Family.

Families are saved in the Revit version shown on each page. Revit cannot open a family saved in a newer version.