INDUSTRY COMPONENT

Seal Housing

A precision-engineered housing that contains and protects mechanical seal components in rotating equipment.

Component Specifications

Definition
The seal housing is a critical structural component in mechanical seal assemblies that provides a secure enclosure for stationary and rotating seal faces, secondary seals, and spring mechanisms. It maintains proper alignment, prevents external contamination, and facilitates cooling/lubrication flow in pumps, mixers, compressors, and other rotating machinery. Designed to withstand operational pressures, temperatures, and mechanical stresses while ensuring dimensional stability for optimal seal performance.
Working Principle
The housing creates a controlled environment where mechanical seal components operate under precise conditions. It maintains axial and radial alignment of seal faces through precision machining, provides ports for barrier/flush fluids, and transfers heat away from the seal interface. The housing's geometry ensures proper compression of secondary seals and allows for thermal expansion without compromising seal integrity.
Materials
Typically manufactured from ASTM A216 WCB carbon steel, ASTM A351 CF8M stainless steel (316 equivalent), duplex stainless steels (UNS S31803), or nickel alloys (Alloy 20, Hastelloy). Cast iron (ASTM A48) used for non-corrosive applications. Surface finishes: 32-63 Ra internally, corrosion-resistant coatings or electropolishing for aggressive environments.
Technical Parameters
  • Face Flatness ≤ 0.0002 inches (0.005 mm)
  • Surface Finish 32-125 μin Ra (0.8-3.2 μm Ra)
  • Pressure Rating Up to 100 bar (1500 psi)
  • Temperature Range -40°C to 400°C (-40°F to 750°F)
  • Mounting Standards ANSI/ASME B73.1, ISO 2858, API 682
  • Dimensional Tolerance IT7-IT8 per ISO 286
Standards
ISO 21049, API 682, ANSI/ASME B73.1, DIN 24960

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Seal Housing.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Corrosion in chemical environments
  • Thermal distortion at high temperatures
  • Improper alignment causing seal failure
  • Cavitation damage in pump applications
  • Galvanic corrosion with dissimilar metals
FMEA Triads
Trigger: Corrosive fluid exposure
Failure: Wall thinning and leakage
Mitigation: Use corrosion-resistant alloys, apply protective coatings, implement cathodic protection
Trigger: Thermal cycling
Failure: Distortion and loss of face flatness
Mitigation: Design for thermal expansion, use materials with matching coefficients, incorporate cooling jackets
Trigger: Improper installation
Failure: Misalignment and premature seal wear
Mitigation: Use alignment tools, follow torque specifications, implement installation training

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Dimensional tolerances per ISO 286 IT7, flatness ≤ 0.0002 inches, surface finish 32-125 μin Ra
Test Method
Hydrostatic pressure testing per API 682, dimensional inspection with CMM, material certification per ASTM/EN standards, NDE methods (PT, MT) for critical applications

Buyer Feedback

★★★★☆ 4.8 / 5.0 (35 reviews)

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

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Seal Housing arrived with full certification."

"Great transparency on the Seal Housing components. Essential for our Machinery and Equipment Manufacturing supply chain."

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Frequently Asked Questions

What is the difference between seal housing and gland plate?

The seal housing is the complete assembly that contains all seal components, while the gland plate is specifically the part that compresses the stationary seal against the housing. The housing includes ports, alignment features, and mounting provisions that the gland plate lacks.

How often should seal housings be inspected?

During routine maintenance every 6-12 months, or according to equipment service intervals. Inspect for corrosion, wear, dimensional changes, and surface defects. Critical applications may require more frequent inspection.

Can seal housings be repaired if damaged?

Minor damage can be repaired through machining or welding with proper procedures, but significant corrosion or distortion typically requires replacement to maintain seal performance and safety standards.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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