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Header Component – Machinery and Equipment Manufacturing

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

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

Standards

ISO 9001, ASME B31.1, DIN EN 13480

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Header.

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

Interchangeable Parts

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

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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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).

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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