
NORDFAB
Pertanyaan yang Sering Diajukan
Pertanyaan umum tentang NORDFAB dari 3G Electric.
What is the connection method used for NORDFAB duct fittings?
NORDFAB duct fittings use a clamp-together connection system. Each component has a rolled end with a groove that accommodates a nitrile O-ring. A stainless steel clamp is placed over the joint and tightened with a screwdriver or hex key. This creates a dust-tight seal without welding, adhesives, or threaded fasteners. The system allows for tool-free disassembly, making it easy to reconfigure or clean ductwork.
Are NORDFAB spark traps suitable for combustible dust applications?
NORDFAB spark traps are designed for round duct systems handling combustible dust. They consist of a steel housing with a screen that captures sparks and embers before they can propagate through the ductwork. The spark traps are available in 12-inch and 14-inch duct diameters, with a blue finish and nitrile seals. They are intended to be installed in the duct run as a passive safety device, but they should be used as part of a comprehensive dust explosion prevention plan that includes proper system design and maintenance.
What materials are NORDFAB blast gates made from?
NORDFAB blast gates are constructed from steel with a galvanized steel blade. The blade material is specified as galvanized steel, which provides corrosion resistance in typical industrial environments. The gate body is steel, and the overall length is 5 1/2 inches for 4-inch duct models. The gates are designed for manual or pneumatic operation, with some models featuring air cylinders for remote actuation. The blade slides within the housing to open or close the duct, allowing for airflow control in dust collection systems.
Can NORDFAB components be used with existing ductwork from other manufacturers?
NORDFAB components are designed for round duct systems and use a specific clamp-together connection with rolled ends. To integrate with existing ductwork from other manufacturers, you may need adapters or transition pieces. NORDFAB offers bellmouth adapter hoods that can connect to different duct diameters. For example, the bellmouth adapter hood (SKU 29RN96) has an 8-inch outlet and a 5-inch inlet. However, compatibility depends on the duct shape and connection type of the existing system. It is recommended to verify dimensions and connection methods before ordering.
What is the temperature range for NORDFAB nitrile O-rings?
NORDFAB nitrile O-rings are designed for use in dust collection systems operating at ambient temperatures. Nitrile (Buna-N) typically has a continuous service temperature range of -40°F to 250°F (-40°C to 121°C). However, NORDFAB does not publish specific temperature ratings for their O-rings. For applications involving high-temperature air or materials, consult the manufacturer's documentation or consider alternative seal materials. The O-rings are intended for sealing duct joints in negative-pressure systems and are not rated for high-temperature or chemical exposure beyond standard dust collection environments.
How do I select the correct NORDFAB branch fitting for my duct layout?
NORDFAB branch fittings are available in various angles and configurations, such as 30° or 45° single or double branches. To select the correct fitting, determine the duct diameter (e.g., 5 inches), the angle required for your layout, and whether you need a single or double branch. For example, SKU 45ZD04 is a 5-inch diameter, 19-inch long, 30° steel double branch. The overall length and angle affect airflow and pressure drop. Use the manufacturer's catalog or consult with 3G Electric to match the fitting to your system design. Ensure that the inlet and outlet diameters match your ductwork.
















































