custom copper header manifold with multi-circuit branch tubes for HVAC coils

Custom Copper Header Manifold for HVAC/R Coils & Heat Exchangers

At KAK, we design and manufacture professional-grade copper header and manifold assemblies engineered for uniform refrigerant distribution and collection. Utilizing high-purity, seamless copper tubing, our header components are widely specified for commercial, residential, and industrial HVAC/R heat exchangers, ensuring maximum heat transfer efficiency and pressure integrity.

Key Advantages of KAK Copper Headers

  • Premium Materials: Fabricated from 99.9% pure TP2 (C12200) seamless copper, offering exceptional thermal conductivity and outstanding resistance to corrosion.
  • Precision Branch Welding: Advanced automated brazing and tight quality control guarantee robust joints, eliminating potential micro-leakage at connection ports under high operating pressures.
  • Custom Engineering: Fully customizable pipe lengths, outer diameters (OD), wall thicknesses (up to 2.0mm for high-pressure R32/R410A systems), and branch counts as per your Technical Purchase Specifications (TPS).
  • Smooth Internal Flow: Cleaned and deburred internally to reduce fluid friction, pressure drops, and prevent system contamination or oil trapping.

Technical Specifications

Technical Parameter Standard Options & Capabilities
Main Pipe Material TP2 / C12200 Deoxidized High-Phosphorus Copper
Main Body OD Range Ø12.7mm up to Ø54mm or fully customized size
Branch Tubing Connections Custom multiple inlets/outlets, straight or precision-bent tubes
Working Pressure Rating Designed to safely manage up to 30 bar to 45 bar applications

Our copper header manifolds are the ideal choice for high-end HVAC original equipment manufacturers (OEMs) and engineering contractors looking for reliable fluid control solutions in advanced Environmental Control Units (ECUs) and VRF networks.


Frequently Asked Questions (FAQ)

Q1: Are KAK copper headers strictly used for condenser and evaporator coils?

While their primary application is in evaporator and condenser coils for refrigerant collection, KAK copper headers are highly versatile. They are extensively utilized in multi-compressor racks, commercial chiller units, water-source heat pumps, air handling units (AHU), and complex aerospace or industrial environmental control loops where fluid piping needs parallel distribution.

Q2: Can you manufacture headers with a wall thickness of 2.0mm for high-pressure systems?

Yes. To satisfy modern high-pressure demands (such as eco-friendly R32, R410A, or R513A systems requiring stable 30-bar holding conditions), KAK can upgrade the main pipe and branch tube wall thicknesses up to 2.0mm. This prevents physical warping and tube distortion during extreme thermal cycles and heavy vibration.

Q3: What leak detection procedures do your copper manifolds undergo?

Quality is our top priority. Every single custom copper header assembly undergoes rigorous factory pressure hold tests and underwater pneumatic bubble testing. We ensure that every brazed branch joint achieves 100% airtightness before the products are packaged and shipped to international markets.

Q4: Do you accept production based on customized blueprints or OEM designs?

Absolutely. KAK specializes in custom manufacturing. You can provide your CAD engineering drawings, detailing the exact branch spacing, hole sizes, and tail lengths. Our team will verify the parameters with Lawrence or our engineering experts to offer an accurate commercial proposal.

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