INDUSTRY COMPONENT

Seal/Gland

A mechanical seal or gland packing system that prevents fluid leakage around rotating shafts in industrial agitators.

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Component Specifications

Definition
A precision-engineered sealing component designed to maintain a pressure-tight barrier between the rotating shaft of an agitator and its stationary housing, preventing process fluid leakage, contamination, and environmental release while accommodating shaft movement and wear.
Working Principle
Creates a controlled interface between rotating and stationary surfaces using either mechanical face seals (with spring-loaded mating rings) or gland packing (compressed fibrous material) that generates friction-based sealing through axial compression, with lubrication often required to reduce heat and wear.
Materials
Mechanical seals: Carbon graphite, silicon carbide, tungsten carbide, stainless steel (316SS), elastomers (FKM, EPDM). Gland packing: Braided graphite, PTFE-impregnated fibers, aramid fibers, flax. Gaskets: Compressed non-asbestos fiber (CNAF), rubber.
Technical Parameters
  • Speed Up to 3600 rpm
  • Leakage Rate < 1 g/hr for mechanical seals
  • Pressure Rating Up to 25 bar
  • Temperature Range -40°C to 400°C
  • Seal Face Flatness < 0.9 μm
  • Shaft Diameter Range 10-200 mm
Standards
ISO 21049, API 682, DIN 24960, ANSI/B93.55

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Seal/Gland.

mechanical seal gland packing agitator seal shaft seal rotary seal fluid sealing packing gland chemical processing seal Seal/Gland Seal/Gland in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Agitator (optional)

An optional mechanical device used to mix, blend, or homogenize the contents of a chemical storage tank.

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Engineering Analysis

Risks & Mitigation
  • Seal failure causing product contamination
  • Shaft damage from improper installation
  • Overheating due to insufficient lubrication
  • Environmental leakage of hazardous fluids
FMEA Triads
Trigger: Abrasive particles in process fluid
Failure: Accelerated seal face wear leading to leakage
Mitigation: Install upstream filtration, use hard-faced seal materials (silicon carbide), implement flush plans
Trigger: Improper gland packing compression
Failure: Excessive leakage or shaft overheating
Mitigation: Follow manufacturer torque specifications, use compression measurement tools, implement regular adjustment schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Shaft runout < 0.05 mm TIR, squareness < 0.1 mm/m, shaft finish 0.4-0.8 μm Ra
Test Method
Hydrostatic pressure testing per ISO 21049, helium leak testing for critical applications, performance validation with actual process media

Buyer Feedback

★★★★☆ 4.6 / 5.0 (35 reviews)

"Testing the Seal/Gland now; the technical reliability results are within 1% of the laboratory datasheet."

"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 Seal/Gland meets all ISO standards."

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Frequently Asked Questions

What is the difference between mechanical seals and gland packing?

Mechanical seals use precision lapped faces for near-zero leakage with minimal maintenance, while gland packing uses compressed fibrous material requiring periodic adjustment and allowing controlled leakage for lubrication.

How often should agitator seals be replaced?

Mechanical seals typically last 2-5 years with proper operation; gland packing requires adjustment every 3-6 months and replacement every 1-2 years depending on operating conditions and media.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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