Opti, Seal, Face, Oil, Back, Pak - Seal and Design

Spring Loaded Seals (OptiSeal)

Seal & Design offers a range of OptiSeal spring loaded (or spring energized) seals. Click a seal type below for more information about which spring loaded (or spring energized) seal is best for your application:

OptiSeal® Profiles

Optiseal The standard OptiSeal® design is your best chance at solving sealing problems associated with chemical attack, and temperature. The standard profile shown, is used in the widest range of applications.
Flanged OptiSeal The Flanged OptiSeal® design prevents the seal from spinning in rotary applications. In cryogenic applications, the clamped flange reduces thermal contraction on the OD of the seal.
optiface The OptiFace seal is designed for internal and external axial squeeze applications such as flanges, swivel joints, and sealing vacuum. For static applications, beveled lips are a good choose because they offer the highest unit loading.
OptiOil Unlike the Flanged OptiSeal®, the OptiOil rotary shaft seal doesn't require a sophisticated housing design. The seal is kept from spinning by the use of an O-Ring on the static sealing surface.
Note:An optional silicone filled spring cavity, shown, prevents the media from coming into contact with the spring. This is a benefit for applications running in sanitary processes such as food and pharmaceuticals, and when you need to protect the spring from the media.

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OptiBack

OptiBack The OptiBack, like any back up device, increases the operating pressure capabilities of the seal. When made from materials such as our Arylex® 745 compound, they assist the primary seal in a number of ways:
  • Higher Pressures up to 30kpsi
  • Higher Temperatures
  • Creates Minimal Clearance Conditions
  • Aids in the Alignment of Hardware
Note: If for some reason there isn't enough axial gland length to use the OptiBack, this integral back up design offers the same benefits and there are no loose components to confuse.

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OptiPak® Increasing the Limits

OptiPak The OptiPak® design combines packing benefits with the Optiseal®. This redundant sealing design is the answer to high pressure spikes, large extrusion gaps, potential misalignments, and rough surface finishes. OptiPak applications include stem packing, seat seals, geothermal services, swivel joints, and other severe service applications.
Female Adapters Female Adapters made from our Arylex® 745 compound make the first major contribution to OptiPak® performance:
  • Higher Pressures up to 30kpsi
  • Higher Temperatures
  • Creates Minimal Clearance Conditions
  • Aids in the Alignment of Hardware
Vee Rings Teflon® and rubber Vee Rings give the assembly the benefits of redundant sealing. Most of our standard vee ring profiles get used in OptiPak® designs.
OptiVee The OptiVee is the tie between OptiSeal® and conventional packing. The design varies depending on the location of the ring within the assembly.
Pak Rings Pak Rings are the defense against back side pressure, and the answer to pressure bypass and bi-directional sealing.

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OptiSeal® Lip Profiles

s Lip profile The "S" Lip profile was designed by CDI and is used in more of our designs than any other lip profile. Redundant contact areas divide the load and create the best combination of wear and sealability, suitable for the widest range of applications.
Sealability: Medium     Wear: Medium     Friction: Medium
 
a lip profile The "A" Lip profile is used when wear and friction are a concern. The large radius lip creates a larger contact area, reducing load. Ideal for dynamic applications with high surface speeds.
Sealability: Low     Wear: Low     Friction: Low
 
b lip profile The "B" Lip, or beveled lip profile, has the smallest contact point and the highest load. This is the choose when wear and friction are of no concern such as in static applications.
Sealability: High     Wear: High     Friction: High
 
j lip profile The "J" Lip, or scrapper profile, is designed around our "S" profile, and is used when the seal has to function as a scraper or wiper.
Sealability: Medium      Wear: Medium     Friction: Medium
 

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Spring Energizers

Vee Spring The Vee Spring ist the only spring to consider for dynamic appliations. The design goal is to engineer the correct spring deflection, yielding the recommended load.
Flant Band Helical The Flant Band Helical springs high load makes it ideal for static applications, basicaly forming a gasket between the spring energizer and the gland housing.

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Spring Materials

Material

Application
Description

Media Resistance

Operating Temp.

Energizer Type

Hydro-carbons Oxygenated
Solvents
Steam Acids Bases F C Vee Helical

301 Stainless Steel

General Service Hydraulics

E E E W S -300
+400
 
-184
+204
 
Yes Yes

Elgiloy® Alloy

Harsh Service, MR-01-75
 

E E E S S -300
+800
-184
+427
Yes No

301 Stainless Steel

Harsh Service,
MR-01-75

E E E S S -300
+800
 
-184
+427
 
Yes No

301 SS/
Silicone Filled/span>

Food and Pharm.

P E E W W -300
+400
-184
+204
Yes No
A-Average   E-Excellent   G-Good   P-Poor   W-Resistant to weak acid/base   S-Resistant to strong acid/base

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