EVO4 Single spring stationary cartridge seal
Factory assembled, balanced, single spring, stationary design cartridge seal with quench option. Suitable for crystallizing liquids or abrasive fluids encountered in the petrochemical, pulp, paper and power generation industries.
Features and Benefits
- Uniquely balanced for high temperature and high pressure applications.
- O’Ring secondary seals with teflon back-up rings, elastomers supplied: kalrez, aflas, viton, EPR, nitrile, etc.
- Flexible stationary face removes influence of centrifugal force, vibration and harmonics.
- Seal gland incorporates flush, quench and drain. Data collection ports can be incorporated on request.
Technical Data and Dimensions
| INCHES | ||||||||
|---|---|---|---|---|---|---|---|---|
| AØ | MIN. BØ | MAX. BØ | FIRST OBSTR. MIN. | |||||
| 1.000 | 2.37 | 2.00 | 2.12 | |||||
| 1.125 | 2.50 | 2.00 | 2.12 | |||||
| 1.250 | 2.50 | 2.00 | 2.25 | |||||
| 1.375 | 2.65 | 2.00 | 2.25 | |||||
| 1.500 | 2.80 | 2.25 | 2.25 | |||||
| 1.625 | 2.95 | 2.25 | 2.25 | |||||
| 1.750 | 3.10 | 2.25 | 2.25 | |||||
| 1.875 | 3.25 | 2.25 | 2.25 | |||||
| 2.00 | 3.40 | 2.25 | 2.25 | |||||
| 2.125 | 3.55 | 2.37 | 2.50 | |||||
| 2.250 | 3.70 | 2.37 | 2.50 | |||||
| 2.375 | 3.85 | 2.37 | 2.50 | |||||
| 2.500 | 4.00 | 2.37 | 2.50 | |||||
| 2.625 | 4.19 | 2.37 | 2.50 | |||||
| 2.750 | 4.37 | 2.37 | 2.50 | |||||
| 2.875 | 4.50 | 2.37 | 2.50 | |||||
| 3.00 | 4.87 | 2.37 | 2.50 | |||||
| 3.125 | 5.00 | 2.37 | 2.50 | |||||
| 3.250 | 5.12 | 2.37 | 2.50 | |||||
| 3.375 | 5.37 | 2.37 | 2.50 | |||||
| 3.500 | 5.50 | 2.37 | 2.50 | |||||
| 3.625 | 5.62 | 2.37 | 2.50 | |||||
| 3.750 | 5.75 | 2.37 | 2.50 | |||||
| 3.875 | 5.87 | 2.37 | 2.50 | |||||
| 4.00 | 6.00 | 2.37 | 2.50 | |||||
| 3.625 | 2.281 | 4.182 | 9.000 | |||||
| 3.750 | 2.281 | 4.937 | 9.500 | |||||
| 3.875 | 2.281 | 5.062 | 9.500 | |||||
| 4.00 | 2.281 | 5.187 | 10.00 | |||||
SIZES: Metric and sixteenth seals available against specific orders. Larger shaft diameters available against speficic orders.
Standard Material Construction
Metal Components: 316SS
Stationary Faces
Carbon, metalized carbon, tungsten carbide
Rotating Seats
Silicon carbide, ceramic
Service
TYPICAL USES: Chemicals, oil, water, abrasive slurries.
Total Warranty
All Robco seals are manufactured to exact standards, and are guaranteed free of defects in materials and workmanship. All seals are guaranteed for 90 days from delivery, excepting negligence, misuse and abuse, and will deliver at our expense a new seal to replace any seal found to be defective within said period. No registration card is required.
The warranty is expressly in lieu al all warranties, expressed or implied, and of all obligation or liabilities on our part, including any liability for incidental or consequential damages.
Disclaimer
The temperature limits, pH ranges, pressure ratings, feet per box and shaft speeds shown throughout this pamphlet are representative; the service life and performance of these products can be affected by elevated temperatures and other operating conditions such as chemical resistance, shaft speeds, pressure and equipment in which that the product is being installed. The ratings supplied are suggested as a guideline and should only be used for evaluating your specific application. When in doubt, contact Robco or your ENVIROPAK distributor. The information contained in the pamphlet should not be considered to be a warranty, expressed or implied, including, but not limited to, a warranty of merchantability or fitness for a particular purpose. In no event shall Robco be liable for any incidental or consequential damages resulting from the use, misuse or inability to use the products. This exclusion applies regardless of whether such damages are sought based on breach of warranty, breach of contract, negligence, strict liability in tort, or any other legal theory.
All Robco mechanical seals are manufactured, assembled and tested in America.
