Custom Seal Design

Sometimes there is no ideal off-the-shelf sealing solution. When equipment constraints, operating conditions, or nonstandard seal support requirements make standard products a compromise, AVT Sealing Solutions helps engineer a purpose-built answer.

From practical fit-up modifications to fully engineered seal arrangements, we work with your team to improve reliability, reduce leakage and emissions, and extend mean time between repairs.

When Custom Design Makes Sense

If you are seeing repeated seal failures, frequent maintenance, or installation limitations, a tailored solution can remove the root cause rather than repeatedly replacing parts.

Fitment Constraints

Limited gland space, nonstandard seal chambers, worn housings, or legacy equipment can make standard seals difficult to fit or align correctly. We design practical modifications to achieve correct geometry and installation.

Examples: adapter plates, spacer rings, sleeve solutions, chamber modifications.

Challenging Duty

Abrasives, poor lubricity, temperature swings, crystallizing fluids, flashing, or solids can destroy seal faces quickly. We help specify design features and materials that protect the fluid film and stabilize the sealing environment.

Examples: improved face materials, balanced designs, solids management, upgraded metallurgy.

Nonstandard Support

Sometimes the seal is fine, but the support plan is not. We can help configure flush, quench, buffer or barrier arrangements and supporting hardware so the seal sees clean, cool, stable conditions.

Examples: API plan alignment, support system selection, piping guidance, instrumentation.

Fitment Constraints

Practical design changes to achieve correct geometry, alignment, and installation on nonstandard or legacy equipment.

Challenging Duty

Material and design upgrades for abrasive, hot, flashing, crystallizing, or low-lubricity services that damage seals quickly.

Nonstandard Support Requirements

Guidance on flush, quench, buffer and barrier arrangements, plus supporting hardware to stabilize the seal environment.

What We Can Design and Manufacture

Custom work can be simple, fast modifications or fully engineered sealing arrangements. We scale the solution to the risk, the duty, and your reliability targets.

Fit-Up and Hardware Solutions

Adapter plates and gland modifications
Split stuffing box solutions for mixers and difficult access equipment
Sleeves, spacers, and component upgrades to restore correct geometry
Support plan hardware integration (flush, quench, buffer, barrier)
Practical improvements to simplify installation and reduce error risk

Engineered Sealing Arrangements

Custom mechanical seal designs for nonstandard duties
Material selection aligned to temperature and chemical compatibility
Balanced design selection to manage pressure and heat generation
Double seal arrangements to control emissions and improve life
Application-led upgrades to reduce leakage and extend MTBR

Fit-Up and Hardware Solutions

Adapter plates and gland modifications
Split stuffing box solutions for mixers
Sleeves, spacers, and geometry fixes
Support plan hardware integration

Engineered Sealing Arrangements

Custom mechanical seal designs
Material selection and duty alignment
Balanced and double seal options
Upgrades to reduce leakage and extend life

Need a Sealing Solution That Does Not Exist Yet?

Share your equipment details and operating conditions. We will help define the right design features and support requirements to improve reliability and reduce total cost.

Discuss a Custom Seal Design

Explore Our Services

Targeted support across repair, inspection, analysis, training, monitoring, and engineered sealing solutions.

Seal Repair Seal Repair	Oil Analysis Oil Analysis	Expansion Joint Survey Expansion Joint Survey	Seal Failure Analysis Seal Failure Analysis
Custom Seal Design Custom Seal Design	Pump Survey Pump Survey	Condition Monitoring Condition Monitoring	On-Site Training On-Site Training