Helical Spring Energized Seals

Helical Spring Energized Seals

When considering a spring energized seal, the spring choice can be very important. Helical spring energized seals are well suited for applications that require tight sealing, such as an environment with light gases.

Standard Designs

 

Section View	Description	Part # Code	Pressure Rating	Application
	standard lip standard head	EH1A EH2A	3,000 psig	The EH1A and EH2A series are best suited for very slow or static applications where tight sealing in light fluids and gases is important. Also a very good choice for low pressure applications.
	I.D. Scraper Standard Heel	EH1B EH2B	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	EH1C EH2C	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	EH1D EH2D	3,000 psig	Good for the combination of a stepped gland and reciprocating motion.
	Standard Lip Extended Heel	EH3A EH4A	10,000 psig	Same as EH1A and EH2A series but with greater pressure capabilities.
	I.D. Scraper Extended Heel	EH3B EH4B	10,000 psig	Same as EH1B and EH2B series but with greater pressure capabilities.
	O.D. Scraper Extended Heel	EH3C EH4C	10,000 psig	Same as EH1C and EH2C series but with greater pressure capabilities.
	Double Scraper Extended Heel	EH3D EH4D	10,000 psig	Same as EH1D and EH2D series but with greater pressure capabilities.
	Internal Face Seal	EH5A	3,000 psig	An excellent alternative to elastomers in applications with difficult combinations of temperature and pressure and little to no motion. The EH5A series seals pressure from an internal source.
	External Face Seal	EH6A	3,000 psig	An excellent alternative to elastomers in applications with difficult combinations of temperature and pressure and little to no motion. The EH6A series 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