High Pressure Shaft Seals | American High Performance Seals

11 Aug.,2025

 

High Pressure Shaft Seals | American High Performance Seals

Leakage control of medium to high pressure on rotary equipment is one of the most challenging sealing applications. …More Info Under higher pressure, the sliding contact area between the seal lip and the shaft will generate much higher friction, heat and wear of the seal lip than under zero system pressure, causing premature or catastrophic seal failure in a very short period of time when using rotary seals not specifically designed for higher pressures.  Special attention must be paid to the selection of a suitable seal design and appropriate seal material.

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Typical Applications

-Sealing pressure from one side

-Pumps, motors, compressors, machine tools, brakes, clutches, mixers, dispensing heads and others.

Operating Range

Pressure: up to 110psi (7.6bar) continuous* depending on shaft speed, up to 200psi (14bar)*max. pressure spikes. For pressures exceeding 60psi (4bar), please contact engineering.
Surface Speed: up to 6,000fpm (30m/s)* depending on pressure
Temperature: -58 to 400°F (-50 to 200°C)* depending on seal material
PV-Rating: 1.4 to 5.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: NBR (Nitrile), FKM, Viton®, HNBR, EPDM, SIL, CR, ACM, VMQ, PTFE, low-temperature material grades and FDA-compliant grades.

Typical Applications

– Lower torque and power consumption, sealing differential pressure from one side

– Pumps, motors, compressors, machine tools, brakes, clutches, mixers and others.

Operating Range

Pressure: up to 150psi (10.3bar) continuous* depending on shaft speed, up to 500psi (35bar)* max. pressure spikes. For pressures exceeding 80psi (5.5bar), please contact engineering.

Surface Speed: up to 7,000fpm (35m/s)* depending on pressure

Temperature: -58 to 400°F (-50 to 200°C)* depending on seal material

PV-Rating: 5.0 to 9.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: NBR (Nitrile), FKM, Viton®, HNBR, EPDM, PTFE, low-temperature material grades FDA-compliant grades and proprietary materials.

Typical Applications

Pumps, motors, rotary couplings, brakes, winches and draw-works, mixers, drilling equipment, downhole tools, swivels and others.

Operating Range

For more information, please visit high speed rotary shaft seals.

Pressure: up to 3,500psi (240bar)* special designs up to 10,000psi (700bar)* at low surface speeds. For pressures exceeding 3,000psi (210bar), please  contact engineering

Surface Speed: up to 1,200fpm (6m/s)* depending on pressure

Temperature: -40 to 400°F (-40 to 200°C)* depending on material

PV-Rating: 7.0 to 9.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: PTFE composite and proprietary materials

Availability: More Info…

Most standard, non-standard, and application-specific designed high-pressure rotary seals, in inch or metric sizes, are available with a 1-2 week turnaround. Expediting service available

Uni-directional High-Pressure Rotary Seals – capable of sealing pressure from one side

Typical Applications

Swivels, rotary manifolds, slew rings, positioning equipment, downhole tools and others.

Operating Range

Pressure: up to 10,000psi (700bar)* special designs up to 20,000psi (bar)* at low surface speeds. For pressures exceeding 3,000psi (210bar), please  contact engineering.

Surface Speed: up to 400fpm (2m/s)* depending on pressure

Temperature: -58 to 400°F (-50 to 200°C)* depending on material

PV-Rating: 6.0 to 10.0 depending on seal design and material

Seals can not be operated at their upper pressure and speed ratings at the same time.

Materials: PTFE composite and proprietary materials

Availability: More Info…

Most standard, non-standard, and application-specific designed high-pressure rotary seals, in inch or metric sizes, are available with a 1-2 week turnaround. Expediting service available.

*Maximum values depend on seal material, seal configuration, media, temperatures, pressures, surface speed, dynamic running surface finish and working environment.  Data provided are guidelines for ideal operating conditions.  Seals cannot be operated at their upper pressure and speed ratings at the same time.  For maximum seal life expectancy, do not operate your seal beyond 75% of any of its operating limits. Please consult engineering or call 1-800-283- for advice.

American High Performance Seals assumes no obligation or liability for any advice furnished or results obtained with respect to these products.  All such advice is given and accepted at the buyer’s risk.

This information, based on our experience, is offered as part of our service to customers.  It is intended for use by persons having technical skill, at their own discretion and risk.  We do not guarantee favorable results, and we assume no liability in connection with its use.

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