Cantilever Spring Energized Seals

Cantilever Spring Energized Seals

Cantilever spring seals, commonly referred to as v-springs or finger springs have shallow but linearly rising load curve. As a result force will decrease as the seal wears.

Standard Designs

 

Section View	Description	Part # Code	Pressure Rating	Application
	standard lip standard head	EV1A EV2A	3,000 psig	A good general purpose solution. The EV1A and EV2A series are designed for slow to moderate speeds over a wide temperature and pressure range.
	I.D. Scraper Standard Heel	EV1B EV2B	3,000 psig	Used in reciprocating rod applications with viscous fluids. The scraper lip can also be used to "snap" the seal into stepped glands.
	O.D. Scraper Standard Heel	EV1C EV2C	3,000 psig	Used in reciprocating piston applications with viscous fluids. The scraper lip can also be used to "snap" the seal into stepped glands.
	Double Scraper Standard Heel	EV1D EV2D	3,000 psig	Good for the combination of a stepped gland and reciprocating motion.
	Standard Lip Extended Heel	EV3A EV4A	10,000 psig	Same as EV1A and EV2A series but with greater pressure capabilities.
	I.D. Scraper Extended Heel	EV3B EV4B	10,000 psig	Same as EV1B and EV2B series but with greater pressure capabilities.
	O.D. Scraper Extended Heel	EV3C EV4C	10,000 psig	Same as EV1C and EV2C series but with greater pressure capabilities.
	Double Scraper Extended Heel	EV3D EV4D	10,000 psig	Same as EV1D and EV2D series but with greater pressure capabilities.
	Internal Face Seal	EV5A	3,000 psig	An excellent alternative to elastomers in applications with difficult combinations of temperature and pressure and little to no motion. The EV5A seals pressure from an internal source.
	External Face Seal	EV6A	3,000 psig	An excellent alternative to elastomers in applications with difficult combinations of temperature and pressure and little to no motion. The EV6A seals pressure from an external source.

Jacket Materials

Standard Jacket Materials

– for additional jacket materials, please contact us

Material Code	Description	Typical Applications	Temperature Range	Coefficient of Friction
E400	Virgin PTFE Color: White	An FDA compliant, light duty material. Good in light gases and cryogenic applications.	-400 to +450	.05 / .08
E471	Graphite Filled PTFE Color: Black	The graphite filler in this blend acts as a dry lubricant making it a good choice in dry running services.	-320 to +475	.06 / .10
E431	Glass/Moly Filled PTFE Color: Dark Gray	A highly wear resistant blen good for high speed applications on hardened shafts.	-250 to +550	.06 / .10
E462	Carbon/Graphite Filled PTFE Color: Dark Gray	A good material choice for combinations of speed and temperature.	-320 to +475	.08 / .12
E491	Ekonol Filled PTFE Color: Beige	This blend uses a non-abrasisve polymer filler. Best in dynamic applications running against soft metals.	-200 to +550	.08 / .12
E282Z	Carbon/Graphite/PPS Filled PTFE Color: Black	Heavy duty material reserved for the most difficult combinations of temperature, speed and pressure.	-200 to +550	.08 / .12
E220	Thermoplastic Elastomer Color: Black	When corrosion resistance and temperature extremes are not the primary concerns TPE is a good choice for tight sealing.	-80 to +275	.30 / .60
E010	UHMW-PE Color: Translucent White	An FDA compliant material with very good wear resistance.	-320 to +200	.15 / .25
E020	Acetal Color: Brown	As a backup ring this material has good extrusion resistance with low water absorption.	-70 to +250	.30 / .40
E125	PEEK Color: Tan	A high-modulus, engineered plastic with excellent thermal and mechanical properties.	-100 to +550	.35 / .45