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
ParameterTypical rangeNotes & selection driver
Face Flatness≤ 0.0002 inches (0.005 mm)
Surface Finish32-125 μin Ra (0.8-3.2 μm Ra)
Pressure RatingUp to 100 bar (1500 psi)
Temperature Range-40°C to 400°C (-40°F to 750°F)
Mounting StandardsANSI/ASME B73.1, ISO 2858, API 682
Dimensional ToleranceIT7-IT8 per ISO 286

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 21049, API 682, ANSI/ASME B73.1, DIN 24960

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

Typical Suppliers & Equivalents

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

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 Seal Housing

Manufacturer profiles associated with Seal Housing.

Sourcing Seal Housing from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Mounting Interface
Precision mounting interface connecting punch tips to pharmaceutical tablet press machines for accurate tablet production.
Chrome Plating
Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.
Upper Tool (Punch)
Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.
Main Frame
The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.

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.

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.

Request Manufacturing Insight for Seal Housing

Thank you. Your request has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.
Yoke Bracket
Get QuotesChat