Extended Heel Canted Coil Spring Energized Rod Seal

Canted coil seals are often specified when less than ideal run-out and side-loading conditions are present. If these conditions exist, there is a good possibility that large extrusion gaps exist. The simplest method of increasing the resistance to seal extrusion in these cases is to upgrade to and extended heel design. The addition of extra seal jacket material protects the functioning (spring) side of the seal from distortion that may cause seal failure. By specifying and extended heel version, pressure ratings can be doubled over non-extended designs. Water jet cutting systems are often built with extended heel designs.

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Typical Range of Application

Pressure

Vacuum to 10,000 psi

[0 to 680 bar]

Temperature*

-320°F to 450°F

[-195°C to 230°C]

Ratings will vary based on materials and operating conditions

*Limited by O-Ring compound

Values and ratings in this catalog are based on industry standard applications operating under ideal conditions. The customer should assume responsiblity for validation testing of performance and suitabilty of Eclipse Engineering products. Eclipse Engineering accepts no liabilty for the accuracy and applicabilty of provided information.

STANDARD ORDERING EXAMPLE:

ECSE-R-234-LW-ET006-M-S

ECSE = Seal Series
R = Rod
234 = Dash Number
LW = Lip Style
ET006 = Seal Material Code
M = Spring Load L – Light M – Medium H – Heavy
S = Spring Material S – Stainless Steel E – Elgiloy® H – Hastelloy®

NON-STANDARD ORDERING EXAMPLE:

ECSE-R-C-02953-LW-ET006-M-S

C

= Nominal Cross-Section



A = 1/16 in. (000 Series)

B = 3/32 in. (100 Series)

C = 1/8 in. (200 Series)

D = 3/16 in. (300 Series)

E = 1/4 in. (400 Series)

02953

= Bore Diameter in 1000ths

Example: 02953 = Ø2.953 [75MM] Bore Diameter

ECSE STANDARD SEAL MATERIALS

ECLIPSE MATERIAL CODE DESCRIPTION COLOR APPLICATIONS
ET000 Virgin PTFE White Light Duty / Static / Cryogenics
ET006 Carbon filled PTFE Black General Purpose
EU000 Virgin UHMWPE Translucent White Viscous Media / Water
ET014 Polyimide filled PTFE Orange/Brown High Sealabilty / Soft Hardware

See Eclipse Material Guide for complete list of available materials.

ECSE STANDARD SPRING MATERIALS

ECLIPSE MATERIAL CODE SPRING MATERIAL APPLICATION
S 300 Series Stainless Steel General purpose, standard spring material
E Elgiloy® Improved performance and corrosion resistance; NACE approved
H Hastelloy® C276 Maximum chemical/corrosion resistance

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Engineers

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