ROD & PISTON
Spring-energized U-cup that uses a variety of jacket profiles, spring types and materials in rod and piston seal configurations.
They are used when elastomeric seals fail to meet temperature range, chemical resistance or friction requirements.
Essential Advantages:
- Outstanding dry-running characteristics
- Long lasting
- Low wear
- Low friction
- Variable friction conditions through choice of spring characteristics
- Extremely low breakaway forces even after prolonged downtime
Essential Advantages:
- No stick-slip effect even at low sliding speeds
- High dimensional stability
- High chemical and thermal stability
- No volumetric change by swelling or shrinkage
- Compact seal, suitable for O-ring assembly spaces
- Lip Scraper ID & OD
- Spring Cantilever
- Excellent in abrasive media.
- Lip Scraper ID
- Lip Beveled OD
- Spring Cantilever
- Scrapes abrasive media from rod surface
- Lip Scraper OD
- Lip Beveled ID
- Spring Cantilever
- Scrapes abrasive media from bore surface
- Lip Back Beveled ID & OD
- Spring Cantilever
- Excellent Sealability on ID & OD
- Lip Back Beveled ID & OD
- Spring Canted Coil
- Low Radial Load
- Decrease Friction
- Lip Scraper ID
- Lip Back Beveled OD
- Spring Canted Coil
- Low Radial Load
- Decrease Friction
- Piston stepped gland easier installation
- Lip Scraper OD
- Lip Back Beveled ID
- Spring Canted Coil
- Low Radial Load
- Decrease Friction
- Rod stepped gland easier installation
- Lip Radius ID & OD
- Spring Cantilever
- Low Wear Rate
- Radius lip reduces lip damage during installation
- Lip Scraper ID
- Lip Radius OD
- Spring Cantilever
- Low Wear Rate
- Scrapes abrasive media from rod surface
- Lip Scraper OD
- Lip Radius ID
- Spring Cantilever
- Low Wear Rate
- Scrapes abrasive media from bore surface
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- Lip Rounded ID & OD
- Spring Helical
- High Radial Load
- Increased Sealability
Announce coming events
Display real testimonials
Announce coming events
- Lip Scraper ID
- Lip Rounded OD
- Spring Helical
- High Radial Load
- Increased Sealability
- Scrapes abrasive media from rod surface
Display real testimonials
Display real testimonials
Display real testimonials
- Lip Scraper OD
- Lip Rounded ID
- Spring Helical
- High Radial Load
- Increased Sealability
- Scrapes abrasive media from bore surface
FACE SEALS
PRESSURE
PRESSURE
Spring energized face seals are engineer to meet your requirements, we specialize in applying our cutting-edge designs, materials and manufacturing capabilities to meet you’re sealing needs
Application Considerations
- Closure force requirements
- Motion
- Media abrasiveness
- Pressure direction.
Spring Types Recommended
- Helical for static applications
- Canted coil for dynamic applications.
PRESSURE
PRESSURE
PRESSURE
Seals are designed to prevent internal pressure or media exiting between two faces.
VACUUM
PRESSURE
VACUUM
Seals are designed to prevent external pressure or media entering between two faces.
VACUUM
- Lip Back Beveled
- Spring Cantilever
- Medium Closure Force
- Good low & high pressure sealability
- Lip Scraper
- Spring Cantilever
- Medium Closure Force
- Good low & high pressure sealability for abrasive fluids
- Lip Radius
- Spring Cantilever
- Medium Closure Force
- Good low & high pressure sealability for non-abrasive fluids
- Lip Back Beveled
- Spring Cantilever
- Low Closure Force
- Good low pressure sealability for non-abrasive fluids
- Lip Rounded
- Spring Helical
- High Closure Force
- Excellent low & high pressure sealability
ROTARY
PTFE Rotary Shaft Seals (PTFE lip seals) are often used in applications where traditional elastomer solutions would be unable to deliver the required level of performance. Equipment which is required to operate with high pressures, high speeds or that requires a dry running rotary seal, can often only be accommodated by using products where the seal lips are manufactured from the latest filled PTFE polymer technology.
Our PTFE shaft seals are the perfect choice in applications where the operational parameters are too severe for elastomer solutions. High shaft speeds, oil free operation, high pressure, long life and low friction are some of the parameters which align perfectly with the performance characteristics of the PTFE seals
- Flanged Heel
- Lip Scraper
- Spring Canted-Coil
- Low friction
- Contamination resistance
- Good low pressure sealability
- Lip Back Beveled
- Spring Canted-Coil
- Very low friction
- Good low pressure sealability
- Lip Back Beveled
- Spring Cantilever
- Medium low friction
- Overall excellent sealability
PACKING SETS
Packing sets are specifically designed for conditions requiring redundant sealing surfaces found in a broad range
of applications—from high pressures, and temperature ranges to large extrusion gaps or rough surface finishes.
Packing sets are design for reliable service for multiple industries. By using a variety of profiles and materials, we are able to customize design solutions to specifically address your individual applications and needs.
SPRING TYPES
CANTILEVER
CANTILEVER
CANTILEVER
Cantilever spring is made from flat metal strip stock, punched into a serpentine pattern which provides great flexibility with a moderate spring load at the edge of the seal lip, providing the best dynamic sealing.
Materials
301 Stainless Steel
Elgiloy®
Features
- V-shaped spring with moderate load vs. deflection
- Standard 300 series stainless steel springs
- NACE compliant Elgiloy springs available
CANTED
CANTILEVER
CANTILEVER
The geometry of the slanted coil spring provides a deflection range like the cantilever but with a relatively flat and moderate spring load versus deflection, making it ideal for friction-sensitive sealing applications.
Materials:
- 302 stainless steel
- C276 alloy (Hastelloy®)
Features
- Canted coil spring with flat load vs. deflections
- Light, medium, and heavy load springs standard
HELICAL
CANTILEVER
HELICAL
Helical spring is made of a flat strip stainless steel that is formed into a helix shape. The geometry of the helical spring provides the highest spring load and the smallest deflection range of all spring types, making it ideal for low pressure, vacuum, and cryogenic sealing applications.
Materials
- 17/7 PH stainless steel,
- Elgiloy
Features
- Helical wound ribbon spring with high load vs. deflection
- Standard 17/7 PH stainless steel springs
- NACE compliant Elgiloy springs available
IMPROVE EXTRUSION RESISTANCE
In many applications, back up rings are used to prevent the gap extrusion of the seals.
Backup rings perform well in extreme conditions including:
- High temperatures
- Increased pressure
- Larger extrusion gaps
Our backup rings can be made to suit any application and, in any shape, or size.
Extending the heel will increase the extrusion resistances. The extended heel can be added to most seal designs.
Anti-Extrusion rings (Back-up) prevent seal extrusion at high temperature and pressure.
PTFE FILLERS (JACKET)
Modified Virgin PTFE
Same basic properties as virgin, but with increased wear and creep resistance and lower gas permeability.
Carbon-Graphite Filled
Carbon reduces creep, increases hardness and elevates thermal conductivity of PTFE. Carbon[1]graphite compounds have good wear resistance and perform well in non-lubricated applications.
Carbon Fiber Filled
Carbon fiber lowers creep increases flex and compressive modulus and raises hardness. Coefficient of thermal expansion is lowered, and thermal conductivity is higher for compounds of carbon fiber filled PTFE. Ideal for automotive applications in shock absorbers and water pumps.
Aromatic Polyester Filled
Aromatic polyester is excellent for high temperatures and has excellent wear resistance against soft, dynamic surfaces. Not recommended for sealing applications involving steam.
Molybdenum Disulfide and Fiberglass Filled
Molybdenum disulfide increases the hardness of the seal surface while decreasing friction. It is normally used in small proportions combined with other fillers such as glass. MoS2 is also inert towards most chemicals.
Fiberglass Filled PTFE
Glass fiber has a positive impact on creep performance of PTFE. It also adds wear resistance and offers good compression strength.
Graphite Filled
Since graphite is often used as a lubricant, it does not significantly increase the coefficient of friction of PTFE when used as a filler. The low friction allows the compound to be used when both shaft speed and pressure are high. Graphite also is chemically inert which enables its use in corrosive medias.
Mineral Filled
Mineral is ideal for improved upper temperatures and offers low abrasion to soft surfaces. PTFE with this filler can easily be qualified to FDA and other food-grade specifications.
Stainless Steel Filled
Although stainless steel filler is very abrasive, this compound has excellent extrusion and high temperature resistance in static and slow dynamic applications.