Eclipse EVS - Cantilever Spring Energized Piston Seal

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Standard Ordering example:
	EVS-P-234-LW-ET006-M-S

Non-Standard Ordering example:
	EVS-P-C-02953-LW-ET006-M-S

Lip Styles

(standard)

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

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

Gland tolerances
SEAL ID	ØA	ØB
0.125 to 0.374	+0.000 -0.001	+0.001 -0.000
0.375 to 2.999	+0.000 -0.002	+0.002 -0.000
3.000 to 7.999	+0.000 -0.003	+0.003 -0.000
8.000 and up	+0.000 -0.004	+0.004 -0.000

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

Gland tolerances
SEAL ID	ØA	ØB
0.125 to 0.374	+0.000 -0.001	+0.001 -0.000
0.375 to 2.999	+0.000 -0.002	+0.002 -0.000
3.000 to 7.999	+0.000 -0.003	+0.003 -0.000
8.000 and up	+0.000 -0.004	+0.004 -0.000

100 Series Maximum Extrusion Gap (E), at 70° F
300 psi	1500 psi	3000 psi	6000 psi
0.010	0.006	0.004	0.003

Gland tolerances
SEAL ID	ØA	ØB
0.125 to 0.374	+0.000 -0.001	+0.001 -0.000
0.375 to 2.999	+0.000 -0.002	+0.002 -0.000
3.000 to 7.999	+0.000 -0.003	+0.003 -0.000
8.000 and up	+0.000 -0.004	+0.004 -0.000

200 Series Maximum Extrusion Gap (E), at 70° F
300 psi	1500 psi	3000 psi	6000 psi
0.014	0.008	0.006	0.003

Gland tolerances
SEAL ID	ØA	ØB
0.125 to 0.374	+0.000 -0.001	+0.001 -0.000
0.375 to 2.999	+0.000 -0.002	+0.002 -0.000
3.000 to 7.999	+0.000 -0.003	+0.003 -0.000
8.000 and up	+0.000 -0.004	+0.004 -0.000

300 Series Maximum Extrusion Gap (E), at 70° F
300 psi	1500 psi	3000 psi	6000 psi
0.020	0.010	0.008	0.004

Gland tolerances
SEAL ID	ØA	ØB
0.125 to 0.374	+0.000 -0.001	+0.001 -0.000
0.375 to 2.999	+0.000 -0.002	+0.002 -0.000
3.000 to 7.999	+0.000 -0.003	+0.003 -0.000
8.000 and up	+0.000 -0.004	+0.004 -0.000

400 Series Maximum Extrusion Gap (E), at 70° F
300 psi	1500 psi	3000 psi	6000 psi
0.024	0.012	0.010	0.005

We started Eclipse with the premise that if we could solve enough of our customers problems they would continue to come back to us for solutions regardless of the type of products we offered.

Eclipse has evolved to produce standard product offerings for a wide range of industries including Hydraulics, Pneumatics, Energy Production, Aerospace as well as Pharmaceutical and Food Handling. Instituting ISO9001/AS9100 quality system in 2015 allowed Eclipse to become a top tier supplier.

Today, Eclipse can support our smaller customers that require only a few seals a year to those needing in the 100’s of thousands. We continue to retain a quality product and are able to deliver consistently on time. Our customers continue to bring us challenging projects that allow our team to do what we do best, problem solving.

Eclipse EVS – Cantilever Spring Energized Piston Seal

Eclipse Cantilever Spring Seals make use of a V shaped spring embedded in a polymer jacket. At installation, the V shape of the spring is compressed, providing sealing energy to the seal jacket ensuring a positive seal. With a linear load curve and excellent deflection range, Eclipse Cantilever Spring Seals are a very versatile product. They are common replacements when rubber u-cups fail due to chemical attack, extreme temperature range, friction concerns and wear issues. Cantilever Spring Seals are best suited for reciprocating applications such as shocks, hydraulic cylinders, pumps and compressors. The shape of the spring concentrates load on the front of the seal, which makes this design also suitable for use as environmental excluders and for applications requiring scraping of viscous media. As an additional option, the spring cavity area can be filled with silicone for FDA clean-in-place applications.

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

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