Core/Tube Bundle: Tube Length 1.5 m to 6 m

Component Specifications

Definition

A tube bundle is the primary heat transfer assembly in shell-and-tube coolers, comprising an array of parallel tubes secured within tube sheets and often supported by baffles. It enables thermal energy transfer between two separate fluid streams—one flowing through the tubes (tube-side fluid) and the other around the tubes within the shell (shell-side fluid). The design optimizes surface area for heat exchange while maintaining structural integrity under operational pressures and temperatures.

Working Principle

The tube bundle operates on conductive and convective heat transfer principles. Heat flows from the warmer fluid through the tube walls to the cooler fluid. Tube-side fluid flows through the tubes, while shell-side fluid circulates around them, often directed by baffles to enhance turbulence and heat transfer efficiency. The large surface area of multiple tubes maximizes thermal exchange within a compact footprint.

Materials

Tubes: Typically copper alloys (e.g., Admiralty brass, cupronickel), stainless steel (304, 316), carbon steel, or titanium for corrosion resistance. Tube sheets: Carbon steel or stainless steel, often clad with corrosion-resistant materials. Baffles: Carbon steel or stainless steel. Supports and ties: Stainless steel rods.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Tube OD	12.7 mm to 50.8 mm
Tube Pitch	1.25 to 1.5 times tube OD
Tube Layout	Triangular or square
Tube Length	1.5 m to 6 m
Design Pressure	Up to 100 bar
Number Of Tubes	50 to 1000+
Design Temperature	-20°C to 400°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 16812, ASME BPVC Section VIII, TEMA Standards

Parent Products

This component is used in the following industrial products

Cooler

A heat exchanger component within a lubrication system that removes excess heat from lubricating oil to maintain optimal operating temperatures.

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Engineering Analysis

Risks & Mitigation

Tube fouling reduces efficiency
Corrosion leading to leaks
Tube vibration causing fatigue failure
Thermal stress cracking

FMEA Triads

Trigger: Poor water treatment leading to scaling
Failure: Reduced heat transfer efficiency and increased pressure drop
Mitigation: Implement regular chemical treatment and monitoring; schedule mechanical cleaning

Trigger: Erosion-corrosion from high-velocity fluids
Failure: Tube wall thinning and eventual leakage
Mitigation: Use erosion-resistant materials; design for appropriate fluid velocities; install protective sleeves at inlets

Trigger: Inadequate support allowing flow-induced vibration
Failure: Tube fatigue failure at baffle contact points
Mitigation: Optimize baffle spacing and design; use anti-vibration bars; ensure proper tube-to-baffle clearance

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Tube OD tolerance ±0.1 mm; tube length tolerance ±1.5 mm per 3 m; tube sheet flatness within 0.5 mm

Test Method

Hydrostatic pressure test at 1.5x design pressure; leak testing with helium or air under water; dimensional inspection per TEMA standards

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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Manufacturers of Core/Tube Bundle

Manufacturer profiles associated with Core/Tube Bundle.

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Frequently Asked Questions

What is the purpose of baffles in a tube bundle?

Baffles direct shell-side fluid flow across the tubes, increasing turbulence and heat transfer efficiency while supporting tubes to prevent vibration.

How do you clean a tube bundle?

Cleaning methods include mechanical rodding, high-pressure water jetting, chemical cleaning, and brush systems, depending on fouling type and tube material.

What materials are best for corrosive environments?

Stainless steel (316), titanium, or cupronickel tubes are preferred for high corrosion resistance in aggressive chemical or marine applications.

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.

Core/Tube Bundle