Frame/Header: Temperature Range -20°C to 200°C

Component Specifications

Definition

The Frame/Header is a critical structural component in heat exchanger systems, particularly in cooling towers and plate heat exchangers. It consists of a rigid frame that supports the entire assembly and headers that distribute fluid to and from the heat transfer plates or surfaces. This component ensures proper alignment, maintains pressure integrity, and provides mounting points for other system elements while withstanding thermal expansion, mechanical loads, and environmental conditions.

Working Principle

The Frame/Header functions by providing structural support to maintain alignment of heat transfer elements while distributing fluid through inlet and outlet headers. The frame absorbs mechanical stresses and thermal expansion forces, while headers ensure even fluid distribution across all heat transfer surfaces to maximize thermal efficiency and prevent flow maldistribution.

Materials

Carbon steel (ASTM A36/A283), Stainless steel (304/316L), Aluminum alloys (6061-T6), Galvanized steel, Powder-coated steel for corrosion resistance. Material selection depends on fluid compatibility, temperature range, and environmental conditions.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Mounting Type	Bolted or welded connections
Surface Finish	RAL 9010 standard, other options available
Pressure Rating	10-25 bar standard
Weight Capacity	500-5000 kg depending on configuration
Frame Dimensions	Customizable to heat exchanger size
Header Port Sizes	DN25 to DN300
Temperature Range	-20°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 15547, ASME BPVC Section VIII, DIN EN 13445, API 661

Parent Products

This component is used in the following industrial products

Heat Exchanger (Cooling Tower/Plate)

Transfers process heat into a cooling water loop. Covers two configurations: evaporative cooling towers, which reject heat to the atmosphere through direct air contact with the water, and plate exchangers, in which the two fluids stay separated by corrugated plates.

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Engineering Analysis

Risks & Mitigation

Structural failure under load
Corrosion in aggressive environments
Fluid leakage at connections
Thermal expansion mismatch
Vibration-induced fatigue

FMEA Triads

Trigger: Corrosion due to chemical exposure
Failure: Structural weakening and potential collapse
Mitigation: Use corrosion-resistant materials, apply protective coatings, implement regular inspection protocols

Trigger: Improper installation or alignment
Failure: Reduced heat transfer efficiency and premature wear
Mitigation: Follow manufacturer installation guidelines, use precision alignment tools, conduct post-installation verification

Trigger: Thermal cycling stress
Failure: Fatigue cracking at welded joints
Mitigation: Design with expansion joints, use flexible connections, implement stress-relief features

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±1.5mm for frame dimensions, ±0.5° for angular alignment, Ra 3.2μm surface finish for sealing surfaces

Test Method

Hydrostatic pressure testing at 1.5x design pressure, dimensional verification with CMM, material certification per ASTM/EN standards, NDT for weld integrity

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

Check the legal entity, factory address, ownership, certifications, and direct contacts.

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

Manufacturers of Frame/Header

Manufacturer profiles associated with Frame/Header.

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Frequently Asked Questions

What is the difference between frame and header in heat exchangers?

The frame provides structural support and maintains alignment of the entire assembly, while headers are specifically designed for fluid distribution to and from the heat transfer surfaces.

How do I select the right material for Frame/Header components?

Material selection depends on fluid compatibility (corrosion resistance), operating temperature, pressure requirements, and environmental conditions. Stainless steel is common for corrosive fluids, while carbon steel with protective coatings is used for cost-effective solutions in non-corrosive environments.

What maintenance is required for Frame/Header assemblies?

Regular inspection for corrosion, checking bolt tightness, verifying alignment, and cleaning of header ports to prevent clogging. Annual visual inspections and torque checks are recommended.

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.

Frame/Header