What are air duct access doors used for?
Air duct access openings are an important part of your commercial kitchen hood system. They help make inspection, testing, adjustment and cleaning both safer and easier by providing easy access to the inside of your duct work. Every access opening in your air duct requires the installation of an air duct access door that can be easily opened as well as securely closed.
If you are searching for Ductmate Air Duct Access Doors, you may be wondering what the differences are between the square duct access doors and the sandwich style access doors. Both of these access doors are designed to help you meet general safety and maintenance requirements for building codes or industry standards set forth by the Sheet Metal and Air Conditioning Contractors’ National Association. Let’s take a look at what makes them different from each other.
The difference between square duct access doors and sandwich style doors?
The main difference between sandwich style doors and square frame duct access doors is that sandwich style doors do not require a frame to be installed or sealed. Square framed duct access doors, on the other hand, are installed using either a press-on adhesive with the addition of zip screws at each corner and on each side, or bending metal dovetails located on the frame to wrap around the access door opening.
Another significant difference between the square duct access doors and sandwich style access doors is that the square framed doors are available for both low and high pressure applications whereas the sandwich style doors are not.
Differences in the amount of insulation also exist between the two styles of doors. Square framed duct access doors are insulated and double gasketed but they are not fire rated access doors or rated for high temperature applications. Ductmate sandwich air duct access doors are available with and without insulation as well as for high temperature applications of up to 1000°F.
Do you need an air duct access door or a grease duct access door?
Neither door is for use as grease duct access doors. If you are looking for a door that can be used on a grease duct, you can choose from a wide selection of Ductmate grease access doors to meet your needs. Ventilation systems that are exhausting air with smoke or grease effluent from cooking applications such as grills, broilers, or fryers will have grease ducts.
Hinged Duct Access Doors
Our square framed doors offer the choice of a door opening with a combined hinge and cam latch or a cam latch only. The sandwich style doors do not feature a hinge. If you are interested in the ability to allow for viewing the inside of the duct, we offer a sandwich style door with a safety glass observation window. If you prefer a rounded edge air duct access door, you should choose a sandwich style door.
Budget-friendly Duct Access Doors
If you are trying to decide between the square duct access door and the sandwich style door and have determined that either will meet your needs, you can compare even more features offered by both door styles. Square duct access doors are a dependable, durable and precision manufactured option that is still budget-friendly.
Watch this short video on Ductmate square duct access doors to learn more:
HoodFilters.com has a complete selection air duct access doors as well as makeup air fans and HVAC filters. If you have any questions or need help choosing a duct access door that’s right for you, ccall 877.394.9731 to speak with a product specialist, email us, or visit us online at HoodFilters.com