Canted Coil - Eclipse Engineering, Inc.

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Eclipse ECSF – Flanged Canted Coil Spring Seal

Flanged seals are a special class of radial seals with an added feature to help retain the seal under rotary forces. The flange is an extension of the heel of the seal, which locates in a counterbore of the housing. At assembly, the seal flange gets pinched in the housing providing a positive mechanical lock that keeps the seal stationary. Flanged seals are an excellent choice for equipment that can be designed with end plates. In these cases, assembly of a flanged seal is simple and provides a robust design as well as a level of redundant sealing on the static side of the gland. Process machinery that require a product to be contained (mixers, augers, spool valves) are good applications of this design.

Typical Range of Application
Pressure	Temperature	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.
Vacuum to 3,000 psi [0 to 200 bar]	-320°F to 450°F [-195°C to 230°C]

Ratings will vary based on materials and operating conditions

Standard Ordering example:
	ECSF-R-234-LW-ET006-M-S

M		= Spring Load
		L – Light M – Medium H – Heavy

S		= Spring Material
		S – Stainless Steel E – Elgiloy® H – Hastelloy®

Non-Standard Ordering example:
	ECSF-R-C-02953-LW-ET006-M-S

= 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		= Rod Diameter in 1000ths
		Example: 02953 = Ø2.953 [75MM] Rod Diameter

ECSF 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.

ECSF 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

000 Series Standard Dash Numbers

000 Series Maximum Extrusion Gap (E), at 70° F
300 psi	1500 psi	3000 psi	6000 psi
0.008	0.004	0.003	0.002