Cantilever Spring Energized Seals
| Section View | 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. |
| Material Code | Description | Typical Applications | Temp Range | COF (µ) |
|---|---|---|---|---|
| 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 |
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