Mullion arrangement, standard sizes, and fixing details of grilles and registers

HVAC Grilles and Registers are very important in regulating and directing the flow of air to and from the HVAC unit in your home, keeping your living space comfortable while also concealing the ductwork. Airmaster have a variety of grilles, registers and air deflectors to ensure you get airflow where you need it most. Before you buy it go through our products

HVAC Grille

A grille is a perforated cover for an air duct through which air is blown into or out of a room for circulation back to the central heating or cooling unit. These are commonly found if you have a heating or central air conditioning. A grille has no damper to control airflow, so air is left to flow freely.

HVAC Register

An air register is almost the same as an HVAC grille, the only difference is that is had adjustable dampers in it. Unlike air grilles, which can be for both input and delivery of air in a room, a register only serves the latter. An air register usually is used with air supply outlets supplying air into indoor spaces.

Mullion arrangement:

  • Mullion: Aluminium profiled U-channel.
  • If the length of the grille is above 500 mm, horizontal aerofoil blades are connected through a mullion, fixed at the centre of the grille for stability.
  • For grilles of length 1000 mm and above, two mullions will be connected vertically at equidistant.
hvac-grill

Standard sizes:

  • Available in square and rectangular sizes.
  • All combinations of W x H (in mm).
  • Non standard sizes are available as an option.
grill-size

Fixing details:

  • Available in square and rectangular sizes.
  • All combinations of W x H (in mm).
  • Non standard sizes are available as an option.
HVAC-Grilles-and-Registers-fixing-details

Leave a Reply

Your email address will not be published. Required fields are marked *

Add to cart