Rotary Seals

Swivel Seals

For sealing dynamic, rotary motion

Swivel seals example

Moving fluid or air under pressure between a stationary base and a rotating structure requires a hydraulic swivel or rotary manifold.  These pressure swivels eliminate or reduce costly highpressure hose assemblies and fit in a small footprint.  We offer a wide range of rotary swivel seals where each seal has specific design features to enable it to perform exceptionally well in the application for which it was designed.


Our Swivel Seals are classified as follows:

Calculate the PV-Rating of the seal required for your application using calculator below:

The PV-Rating of an AHPSeal rotary seal gives an indication of the seal’s ability to withstand the stress applied to a seal due to sealing pressure as the shaft rotates with velocity. The higher the PV-Rating is, the higher the seal’s ability is to handle a higher combination of pressure and rotational velocity, with 10 being the highest. This is to only be used as a guide for lubricated operating conditions to narrow down possible sealing products.
Seals can not be operated at their upper pressure and speed rating at the same time!

Please contact one of our experienced seal engineers to select the best seal for your application.

PV-Rating Calculator:
Shaft Diameter :
RPM:
Pressure :

PV-Rating =
  

High Pressure Swivel Seals – PV-Rating 7.0  to 9.0  -up to 5,000psi*

Typical Applications

Swivel joints, hose reels, hydraulic excavators, hydraulic cranes, log loaders, tree harvesters, machine tools, rotary tables, hydraulic fixture clamp feeds and others.

Pressure: up to 5,000psi (350bar)* and special designs up to 10,000psi (690bar) at low surface speeds for pressures exceeding 3,000psi (210bar), please contact engineering.

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

Surface speed: up to 400fpm (2m/s)* at lower pressure

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, elastomers and proprietary materials

Availability: More Info…

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

Bi-directional seals – capable of sealing pressure from both sides

Application-specific and proprietary seal designs are available. Please contact engineering to get the best seal for your rotary sealing applications.


Ultra-High Pressure Swivel Seals – PV-Rating: 7.0 to 10.0 -up to 10,000psi*

Typical Applications

Coiled tubing hose reels, swivels for topside & MPD, circulating heads, cementation heads, rock drilling and others.

Operating Range

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

Pressure: up to 10,000psi (690bar)*, at low surface speeds, for pressures exceeding 3,000psi (210bar), please contact engineering.

Surface speed: up to 500fpm (2.5m/s)*

PV-Rating: 7.0  to 10.0 depending on seal design and material Seals cannot be operated at their upper pressure and speed ratings at the same time.

Materials: PTFE composite, elastomers and proprietary materials

Availability: More Info…

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

Low Friction Swivel Seals – PV-Rating: 7.0  to 9.0

Typical Applications

Machine tool workholding swivels, indexing tables, bottle filling, cleaning and capping, metal coilers, ladle turrets, grippers, centrifuges, thru bore rotating unions for MRI/MRT and others.

Operating Range

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

Pressure: up to 5,000psi (350bar)* at low surface speeds for pressures exceeding 3,000psi (210bar), please contact engineering.

Surface speed: up to 1,200fpm (6m/s)*

PV-Rating: 7.0  to 9.0 depending on seal design and material Seals cannot be operated at their upper pressure and speed ratings at the same time.

Materials: PTFE composite, elastomers and proprietary materials

Availability: More Info…

Most standard or non-standard and application-specific designed swivel seals, in inch or metric sizes, are available with a 1-2 weeks turnaround, expedite service available.

Application specific and proprietary seal designs available, please contact engineering to get the best seal for your rotary sealing applications.


Seal Materials: The selection of the best material has a critical impact on achieving the best sealing performance.  Our comprehensive range of leading edge standard-, high- and low-temperature materials include:  High performance polyurethane, Nitrile, Viton®, H-Nbr, PTFE (Teflon®), filled PTFE, Aflas®, Hytrel®, Kalrez®, EPDM, Silicone, FDA compliant materials, Nylon, Nylatron®, POM, UHMWPE, Tefzel®, and Peek, along with our proprietary specialized Duraloy™, Duralast™, and Permachem™ materials.  More Info on Materials


*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 1-800-283-7140 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.