RD Straight Duct

Q. Can this be used in soil affected by salinity?
A. Yes, Slimduct RD can be used in salinity-affected soil. Please refer to the Installation Manual for more details.

Q. Can the standard type withstand a person’s weight? Can it act as a passage?
A. The standard type is not load-bearing. However, the walkway type is designed to bear the weight of a person temporarily for maintenance purposes, not as a permanent passage.

Q. The surface is starting to rust. Is it not resistant to corrosion?
A. Slimduct RD is corrosion-resistant, but not corrosion-proof. Surface scratches during installation and use may cause rust to appear. Over time, the zinc coating degrades, which may lead to rust. Please refer to the Product Catalog or Installation Manual for more details.

Q. I want to switch from the standard type to the walkway type. Can I just change out the cover?
A. No, the supports must also be upgraded to heavier-duty types to accommodate the additional weight.

Q. What kind of brackets should I use to mount it on the wall?
A. Use the S Type RZM Bracket and RZB Riser. For RD-150 type installation, use 300 S Type or other appropriate brackets like RZW. Avoid using longer brackets that may cause imbalance.

Q. Is it possible to buy just a reinforcement plate?
A. Yes, reinforcement plates can be purchased. Contact your nearest dealer or us.

Q. Do I need a wall plate or a wall sleeve?
A. Generally, a wall plate or wall sleeve is necessary to prevent rainwater from penetrating the building. You can opt for alternative water disposal methods, like creating a chamber box.

Q. If I install a standing Wall Sleeve or Wall Plate, will it completely stop the water?
A. If installed as per the Installation Manual, standing water can be prevented. However, while tests confirm no water penetration when properly installed, there are no guarantees in all cases.

Q. Can I use a free joint in place of a fixed joint?
A. Yes, if the free joint is level to the ground. However, it is not recommended for long-term use as strength may decline over time. Avoid continuous use of free joints and corner connections.

Q. What should I know when cutting a straight-line duct?
A. Use a high-speed cutter, such as snips or a cutting wheel, for ducts larger than the 450 type. After cutting, deburr the edge and apply anti-rust treatment (such as Zn-Al type or zinc-rich paint) to prevent corrosion.

Product Notes for Slimduct RD

Before ordering a Slimduct RD for your next HVAC job, make sure to check these guidelines and considerations. Please review the details below to ensure proper setup and safety during the installation process.

• The baseplate shown is an optional accessory for all sizes except RD-15-05, which includes the baseplate.
• RD150 size: It is not possible to use without a coupler.
• Use an RFJ (free coupler) for the RD connection if you cut the RD duct.
• For vertical applications, do not use without a coupler for safety reasons.
• For vertical applications, avoid using brackets when mounting sizes 600(H) and 900(H) to the wall.
• In vertical applications, when mounted directly to the wall, size 900(H) cannot be used with elbows. If the duct needs to be raised from the wall surface, use a baseplate (RDB, REB, RFB, RTS, or RJB).
• Sizes 600(H) and 900(H) are supplied with reinforced plates for covers. Size 450(H) is not supplied with it; it is an optional accessory for size 450(H).
• Sizes 600(H) and 900(H) are supplied with reinforced plates for joints.
• For further information, refer to the Slimduct RD Installation Manual.