INDUSTRY COMPONENT

Cooling Water Passages

Internal cooling channels within center housing for thermal management.

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Component Specifications

Definition
Cooling water passages are precisely engineered internal channels integrated into the center housing of industrial machinery. Their primary function is to circulate coolant (typically water or water-glycol mixtures) to absorb and dissipate heat generated by internal components such as bearings, shafts, or process zones, thereby maintaining optimal operating temperatures, preventing thermal expansion, and ensuring dimensional stability and prolonged equipment lifespan.
Working Principle
Operates on forced convection heat transfer. Coolant is pumped through the network of passages, absorbing thermal energy from the housing walls via conduction. The heated coolant is then transported to an external heat exchanger (like a cooling tower or radiator) where it releases the heat to the environment before being recirculated, creating a continuous cooling cycle.
Materials
Typically cast or machined from the same material as the housing: Ductile iron (e.g., EN-GJS-400-18, ASTM A536), cast steel (e.g., ASTM A216 WCB), or aluminum alloys (e.g., A356, 6061) for lighter applications. Internal surfaces may be treated or coated (e.g., epoxy, nickel plating) for corrosion and scale resistance.
Technical Parameters
  • Flow Rate 10-50 L/min
  • Passage Diameter 8-25 mm
  • Operating Pressure 3-6 bar
  • Surface Roughness (Ra) < 3.2 µm
  • Max Coolant Temperature 80°C
Standards
ISO 1219, DIN 24342, ISO 13709 (API 610)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cooling Water Passages.

cooling water passages center housing cooling internal coolant channels machine thermal management industrial cooling systems heat dissipation cooling circuit design Cooling Water Passages in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Center Housing

The central structural component of a turbocharger's CHRA that houses the rotating assembly and provides mounting interfaces.

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Engineering Analysis

Risks & Mitigation
  • Corrosion and scaling reducing heat transfer
  • Blockage leading to overheating
  • Leakage causing coolant loss and contamination
  • Cavitation damage from high flow velocities
FMEA Triads
Trigger: Poor water quality leading to mineral scale buildup.
Failure: Reduced coolant flow and heat transfer efficiency, causing localized overheating.
Mitigation: Implement water treatment (softening, filtration), regular flushing, and use of inhibitors.
Trigger: Galvanic corrosion due to dissimilar metals in the coolant loop.
Failure: Wall thinning, pinhole leaks, and structural weakening.
Mitigation: Use compatible materials, corrosion-resistant coatings, and maintain proper coolant chemistry with inhibitors.
Trigger: Mechanical vibration or thermal cycling.
Failure: Fatigue cracking at passage junctions or connections.
Mitigation: Design with smooth radii, adequate fillets, and support; use flexible connectors where needed.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ISO 2768-m, pressure testing to 1.5x operating pressure with no leaks.
Test Method
Hydrostatic pressure test, flow rate verification, thermographic inspection for thermal performance.

Buyer Feedback

★★★★☆ 4.8 / 5.0 (21 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Cooling Water Passages meets all ISO standards."

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Cooling Water Passages arrived with full certification."

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Frequently Asked Questions

What is the main purpose of cooling water passages in a center housing?

To control and dissipate heat generated by internal components, preventing overheating, thermal deformation, and ensuring stable operation and longevity of the machinery.

How are cooling passages typically manufactured?

They are often cast integrally during the housing's casting process using sand cores to form the internal channels. For complex designs or repairs, they may be drilled or machined post-casting.

What are common issues with cooling water passages?

Blockages from scale or debris, corrosion, leaks at seals or connections, and inadequate flow due to pump failure or design flaws.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Cooling Water Jacket/Ports Cooling/Relief Holes