Table of Contents
What is the difference between grilles registers and diffusers?
Grilles – Remove air from an indoor space and return it to the HVAC system for reconditioning. Registers – Supply conditioned air into an indoor environment. Diffusers – Push conditioned air into a space in a set pattern for optimal airflow distribution.
What are GRDS in HVAC?
HVAC Know It All – Have you heard the term GRD? It is an acronym for the words…grills, registers and diffusers. These terms are sometimes used interchangeably but in truth, have different definitions. Grill is a louvered or perforated frame, usually used for return air applications.
What is a louvered grille?
Steel louvered grille (500) The 500 Series Louvered Grille uses adjustable (supply) or fixed (return) blades to control airflow and provide a supply or return unit with minimal see-through. Most commonly used in sidewall applications, 500/600/700 Series is available with both supply and return construction options.
What is the difference between a vent and a register?
WHAT IS THE DIFFERENCE BETWEEN AN AIR VENT COVER AND A REGISTER? An air register has the capability of adjusting the air flow by opening and closing a damper or flaps, usually found at the bottom of the air register. An air vent cover, simply covers the duct without the added feature of adjusting air flow.
What are OBD registers?
The OBD is a steel opposed blade damper operated by a flat-head screwdriver. This damper attaches directly to most grilles and registers with ‘S’ clips and is useful for air balancing.
What is HVAC grille?
A grille is a vent cover 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 heating or central air conditioning. A grille has no damper to control air flow, so air is left to flow freely.
Why is grille spelled with an E?
To remember the spelling, think of the E on the end of “grille” as being decorative like the metal grilles themselves. Both words come from a French word that means “gridiron” or “grating.”
What is OBD grille?
The OBD is a steel opposed blade damper operated by a flat-head screwdriver. This damper attaches directly to most grilles and registers with ‘S’ clips and is useful for air balancing. Opposed Blade Damper for Grilles.
What is a MS damper?
The industrial damper MS was designed to shut off large-sized ventilation networks. It is suitable for industrial HVAC applications. Construction: Frame and blades: galvanized steel, aluminium, stainless steel 304L or 316L. Lateral gaskets: stainless steel.
What is OBD HVAC?
The OBD is a steel opposed blade damper operated by a flat-head screwdriver. This damper attaches directly to most grilles and registers with ‘S’ clips and is useful for air balancing. Opposed Blade Damper for Grilles. Standard Finish is Mill.
Which Nailor grilles and registers are available for industrial applications?
Nailor 8100 Series Industrial Grilles and Registers feature contoured extruded aluminum airfoil blades that are ideally suited for high capacity industrial applications. Nailor 51LG, 61LG, and 67LG Lattice Grilles are available for return air, architectural and minimum security applications.
What is a return Grill on a door?
Return grilles with hinged or removable face that are designed to accommodate one-inch or two-inch thick filters. Return or exhaust grilles for high traffic areas where the grilles must withstand abuse. Extruded aluminum door grilles transfer air through doors or walls while limiting light or visual access.
What materials can be used to make a grill?
Supply grilles available in aluminum and steel construction to meet requirements of a wide variety of applications. Return or exhaust grilles available in aluminum and steel construction to meet requirements of a wide variety of applications.
What is the best type of grill for high traffic areas?
Return or exhaust grilles for high traffic areas where the grilles must withstand abuse. Extruded aluminum door grilles transfer air through doors or walls while limiting light or visual access.