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PI3 EngiSeal

Movement

Reciprocating

Static

Duty

Low Pressure
High Speed

Action

Single/Double

Description:

An EngiSeal is KC Seals version of spring loaded u-cups, which are sealing elements that combine high performance polymer "seal jackets" with recent advances in spring technology as "jacket energizers". This unique combination of matching suitable materials for the seal and the spring allows our customers to seal under some of the most extreme service conditions, such as high temperature environments, the presence of harsh chemicals, or the need for a very low friction solution. The EngiSeal® product line is available to fit all standard hardware glands, though can also be designed to match any non-standard housings.

The EngiSeals sealing geometry can be modified to alter sealing performance. Please speak to one of our technical sales staff for more information This email address is being protected from spambots. You need JavaScript enabled to view it..

  • Low coefficients of friction
  • Maintains high performance over very long sealing life
  • Can handle rapid changes in temperature
  • High temperature range
  • Can be incorporated into new tool design to customer specification
  • Stick-slip-free operating for precise control
  • Wiping action from multiple lips design.
Applications
  • Valves
  • Pumps
  • MWD equipment
  • Gear drives
  • Separators
Technical Data

Material:

Unfilled PTFE

Material Code:

1001

Material:

Molyglass filled PTFE

Material Code:

1015

Material:

Bronze filled PTFE

Material Code:

1023

Material:

Carbon graphite filled PTFE

Material Code:

1020

Material:

1130

Material Code:

1130

Note: Alternative materials are available upon request

Temperature:

-200°C to +260°C
-328°F to +500°F

Speed:

25 ft/s

Pressure:

5,000 psi

Media:

Chemical compatibility chart

Note: All parameters can vary depending on the specific application, please take the above information as a general guideline. Should you have any concerns please contact us at This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

TypeTemperatureChemical CompatibilityWear ResistanceFeatures
Unfilled PTFE (1001)

-200°C to +260°C

-328°F to +500°F

Excellent

Low

Excellent insulating capacity. High dielectric properties. Low coefficient of friction, suitable for non-stick applications. Not recommended for dynamic applications, such as loaded sleeve bearings.

Carbon Graphite Filled PTFE (1020)

-200°C to +260°C

-328°F to +500°F

Good

High

Chemical resistance in corrosive environments. Good initial wear and rubbing or sliding characteristics in both wet and dry applications. Excellent for piston rings (cylinder wear is reduced because the relatively soft CFPT surfaces entrap potentially abrasive foreign particles).

Bronze Filled PTFE (1023)

-200°C to +260°C

-328°F to +500°F

Fair

High

High thermal conductivity, with heat dissipation more rapid than in unfilled PTFE. Exhibits excellent tribiological properties in high speed dynamic applications.

1130

-200°C to +260°C

-328°F to +500°F

Excellent

High

Designed for demanding sealing and wear applications, our proprietary 1130 blend has excellent tensile strength and elongation properties, as well as low friction.

Molyglass Filled PTFE

-200°C to +260°C

-328°F to +500°F

Good

High

Long, steady-state wear life on hardened dynamic surfaces due to a low starting coefficient of friction. Excellent for extreme high pressure and temperature conditions.

Spring Energizers

Three different spring types may be chosen in the design of an EngiSeal®. Each type displays different capacities in load curve, unit loading and deflection range. These are canted coiled springs, helical springs and V-springs.

rd engiseal canted

Canted coiled springs: Code SPR-C

Produces a very flat load curve when compressed. Providing constant, predictable loads throughout a very wide deflection range, canted coiled springs are used to energize U-cup seals and other components.

rd engiseal helical

Helical springs: Code SPR-H

Produces a very high unit load over a narrow deflection range. Constructed from flat ribbon stainless steel and other alloys wound into a helical form with a round cross section, helical springs are used in U-Cup seals and other components.

rd engiseal vsprings

V-Springs: Code SPR-V

V-Shape geometry produces a moderate load over a wide deflection range. The stainless steel (or other alloy) cantilever design of a V-spring is applied as a radial or compression energizer inside a U-cup seal and other components.

Please contact KC Seals (This email address is being protected from spambots. You need JavaScript enabled to view it.) for information regarding load and deflection.

Note: The sizes listed below are all standard profile dimensions, K.C. Seals can and does manufacturer to non-standard housing dimensions.

Style Part #Bore Diameter BGroove Diameter AGroove Width D
PI3 0.250 0.125 0.094
PI3 0.375 0.187 0.141
PI3 0.500 0.312 0.141
PI3 0.625 0.437 0.141
PI3 0.750 0.500 0.188
PI3 0.875 0.625 0.188
PI3 1.000 0.750 0.188
PI3 1.125 0.875 0.188
PI3 1.250 1.000 0.188
PI3 1.375 1.125 0.188
PI3 1.500 1.125 0.281
PI3 1.625 1.250 0.281
PI3 1.875 1.500 0.281
PI3 2.000 1.625 0.281
PI3 2.250 1.875 0.281
PI3 2.500 2.125 0.281
PI3 2.750 2.375 0.281
PI3 3.000 2.625 0.281
PI3 3.250 2.875 0.281
PI3 3.500 3.125 0.281
PI3 3.750 3.375 0.281
PI3 4.000 3.625 0.281
PI3 4.250 3.875 0.281
PI3 4.500 4.125 0.281
PI3 4.750 4.250 0.375
PI3 5.000 4.500 0.375
PI3 5.500 5.000 0.375
PI3 6.000 5.500 0.375
PI3 6.500 6.000 0.375
PI3 7.000 6.500 0.375
PI3 7.500 7.250 0.375
PI3 8.000 7.500 0.375
Style Part #Bore Diameter BGroove Diameter AGroove Width D