At Zeman Manufacturing, we deliver precision tubing for the HVAC industry, where leak-free joints, thermal efficiency, and corrosion resistance keep buildings comfortable and equipment running around the clock. From roof-top chillers to variable-refrigerant systems, every tube we fabricate is designed to handle constant temperature swings, high pressures, and tight spatial constraints.
We work with copper, stainless steel, aluminum, and carbon steel in sizes from 0.50 in to 6 in OD, providing smooth internal surfaces, uniform wall thickness, and repeatable bends that meet stringent performance and safety standards.
Refrigerant Lines
Small-diameter tubes carry refrigerant between compressors, evaporators, condensers, and expansion valves, with tight bends and clean brazed ends that maintain pressure integrity and minimize charge loss.
Heat Exchanger Coils
Serpentine and helical coils for evaporators, condensers, and hot-water sections feature precise spacing and flawless surfaces so heat moves efficiently from fluid to air.
Chilled- and Hot-Water Piping
Copper and steel tubes circulate conditioned water through fan-coil units and air handlers, fabricated to exact lengths and end forms for quick installation and reliable sealing.
Condensate Drain Tubes
Smooth-bore tubing routes moisture away from cooling coils, preventing overflow and microbial growth in commercial and industrial systems.
Gas and Fuel Lines
Black steel or stainless tubes deliver natural gas or propane to burners in furnaces and boilers, supplied with threaded or welded fittings that meet code requirements.
Structural Frames and Supports
Rigid tubing serves as the skeleton for air-handler bases, duct-hanger brackets, and roof-top unit stands, combining low weight with high strength.
Compressor and Blower Assemblies
Custom-bent tubes route oil, refrigerant, and wiring through large HVAC skids, integrating end forming and porting to streamline final assembly.
• Chillers and heat pumps
• Rooftop and packaged units
• Fan-coil units and air handlers
• Variable-refrigerant (VRF/VRV) systems
• Hydronic heating and cooling loops
• Furnaces and boilers
• Dehumidifiers and air scrubbers
• Duct supports and equipment frames
HVAC tubing must endure wide temperature swings and continuous pressure cycling without failure. Zeman pairs advanced bending, laser cutting, and end forming with ISO 9001:2015 and ISO 13485:2016 certified quality systems to ensure every tube meets exact specifications. Whether you need refrigerant circuits for a soft-serve ice-cream freezer or structural frames for industrial air handlers, we supply tubing that keeps your HVAC equipment efficient, reliable, and built to last.
