Header: Temperature Range -40°C to 200°C, Diameter 50-300 mm

Component Specifications

Definition

A header is a critical distribution component in heating/cooling coil sections that connects the main supply/return piping to multiple parallel coil circuits. It ensures balanced fluid flow across all coil tubes, optimizing heat transfer efficiency in industrial HVAC, refrigeration, and process cooling systems. Headers are typically cylindrical or rectangular manifolds with precisely spaced branch connections.

Working Principle

Headers operate on fluid distribution principles: incoming fluid from main pipes enters the header chamber, where pressure equalization occurs before distributing through multiple outlets to parallel coil circuits. This ensures uniform flow rates and temperature distribution across all coil tubes, maximizing thermal exchange efficiency.

Materials

Carbon steel (ASTM A106/A53), stainless steel (304/316L), copper alloys (C12200), aluminum alloys (6061-T6). Material selection depends on fluid type, pressure, temperature, and corrosion requirements.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Diameter	50-300 mm
Branch Spacing	25-100 mm center-to-center
Connection Type	Threaded, flanged, or welded
Pressure Rating	150-600 PSI
Temperature Range	-40°C to 200°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, ASME B31.1, DIN EN 13480

Parent Products

This component is used in the following industrial products

Heating/Cooling Coil Section

A modular section within an Air Handling Unit (AHU) containing coils for heating or cooling air

View Product Details

Engineering Analysis

Risks & Mitigation

Flow imbalance leading to uneven heating/cooling
Corrosion from incompatible fluids
Pressure fatigue cracks at weld joints

FMEA Triads

Trigger: Improper welding or material defects
Failure: Header rupture under pressure
Mitigation: Implement ASME welding procedures, conduct hydrostatic testing at 1.5x operating pressure

Trigger: Sediment buildup in header chamber
Failure: Reduced flow to downstream coils
Mitigation: Install strainers upstream, implement regular flushing maintenance

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±1 mm on branch spacing, ±2% on diameter dimensions

Test Method

Hydrostatic pressure testing per ASME BPVC Section VIII, leak testing with helium mass spectrometry

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Header

Manufacturer profiles associated with Header.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a header in coil sections?

To distribute fluid evenly across multiple parallel coil circuits, ensuring balanced flow and optimal heat transfer efficiency.

How do you select header materials for different applications?

Based on fluid compatibility (corrosion resistance), operating pressure/temperature, and industry standards (e.g., stainless steel for corrosive fluids, carbon steel for high-pressure steam).

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Header