EV17 Cartridge Seal
Outside mounted, single, stationary seal design (no stuffing box required). Engineered for abnormal shaft movement. Hydraulically balanced for self-adjustment to pressure surges. Springs are isolated from pumped product to eliminate clogging.
Features and Benefits
- Stationary seal design eliminates most vibration or harmonic problems.
- Engineered to handle above normal shaft movement.
- Hydraulically balanced for adjustment to pressure surges.
- Springs are isolated from pumped product to eliminate clogging.
- Requires no stuffing box (externally mounted).
- In-field repair kit available to reduce down-time.
- Cartridge designed for easy installation.
- Pressure tested for assurance before it leaves Robco's facility.
Operating Specifications
Temperature limit: -40°C to 205°C
-40°F to 400°C
Temperature limit is based on standard elastomer.
Pressure limit to: Vacuum to 500 psi
34.01 kPa
Shaft speeds to: 3600 rpm
Standard Material Construction
Metal Components: 316SS
Stationary Faces
[EV17]: Chemical Grade Carbon
Tungsten Carbide
[EV17S]: Chemical Grade Carbon
Chrome Oxide Carbon
Rotating Seats
[EV17]: Ceramic
Silicon Carbide
[EV17S]: 17-4PH SS (Heat Treated)
Chrome Oxide Coating
| Code Size |
*Shaft Size |
Seal Outboard Distance | Rotary Seat | Gland O.D. | .375 Bolt | .500 Bolt | .625 Bolt |
| B | C | D | Bolt Circle | Bolt Circle | Bolt Circle | ||
| 008 | 0.500 | 1.812 | 1.375 | 4.000 | 2.187 | 2.437 | 2.625 |
| 010 | 0.625 | 1.906 | 1.562 | 4.000 | 2.375 | 2.625 | 2.812 |
| 012 | 0.750 | 1.906 | 1.687 | 4.000 | 2.500 | 2.750 | 2.937 |
| 014 | .0875 | 1.906 | 1.812 | 4.000 | 2.625 | 2.875 | 3.062 |
| 016 | 1.000 | 1.937 | 1.937 | 5.000 | 2.750 | 3.000 | 3.187 |
| 018 | 1.125 | 1.937 | 2.062 | 5.000 | 2.875 | 3.125 | 3.312 |
| 020 | 1.250 | 1.937 | 2.187 | 5.000 | 3.000 | 3.250 | 3.437 |
| 022 | 1.375 | 1.937 | 2.312 | 5.500 | 3.125 | 3.375 | 3.562 |
| 024 | 1.500 | 1.937 | 2.437 | 5.500 | 3.250 | 3.500 | 3.687 |
| 026 | 1.625 | 2.000 | 2.687 | 5.500 | 3.500 | 3.750 | 3.937 |
| 028 | 1.750 | 2.000 | 2.812 | 6.000 | 3.625 | 3.875 | 4.062 |
| 030 | 1.875 | 2.000 | 2.937 | 6.000 | 3.750 | 4.000 | 4.187 |
| 032 | 2.000 | 2.000 | 3.062 | 6.000 | 3.875 | 4.125 | 4.312 |
| 034 | 2.125 | 2.062 | 3.312 | 6.500 | 4.125 | 4.375 | 4.562 |
| 036 | 2.250 | 2.062 | 3.437 | 6.500 | 4.250 | 4.500 | 4.687 |
| 038 | 2.375 | 2.062 | 3.562 | 6.500 | 4.375 | 4.625 | 4.812 |
| 040 | 2.500 | 2.062 | 3.687 | 6.500 | 4.500 | 4.750 | 4.937 |
| 042 | 2.625 | 2.125 | 3.687 | 7.000 | 4.500 | 4.750 | 4.937 |
| 044 | 2.750 | 2.125 | 3.812 | 7.000 | 4.625 | 4.875 | 5.062 |
| 046 | 2.875 | 2.125 | 4.062 | 7.000 | 4.875 | 5.125 | 5.312 |
| 048 | 3.000 | 2.125 | 4.187 | 8.000 | 5.000 | 5.250 | 5.437 |
| 050 | 3.125 | 2.125 | 4.312 | 8.000 | 5.125 | 5.375 | 5.562 |
| 052 | 3.250 | 2.125 | 4.437 | 8.500 | 5.250 | 5.500 | 5.687 |
| 054 | 3.375 | 2.125 | 4.562 | 8.500 | 5.375 | 5.625 | 5.182 |
| 056 | 3.500 | 2.125 | 4.687 | 9.000 | 5.500 | 5.750 | 5.937 |
| 058 | 3.625 | 2.281 | 4.182 | 9.000 | 5.625 | 5.875 | 5.937 |
| 060 | 3.750 | 2.281 | 4.937 | 9.500 | 5.750 | 6.000 | 6.187 |
| 062 | 3.875 | 2.281 | 5.062 | 9.500 | 5.875 | 6.125 | 6.312 |
| 064 | 4.000 | 2.281 | 5.187 | 10.000 | 6.000 | 6.250 | 6.437 |
Service
TYPICAL USES: Progressive cavity pumps, positive displacement pumps.
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.
Exclusive "Infield" Repair Kit
When it comes time to replace your Enivro XVII seal you can repair it in your shop with our off the shelf infield repair kit. No new seals at full list price – no half price on exchange seals, but an 'infield' repair kit at a fraction of the original cost. No rebuilts – all new components. Because of the exclusive design, your seal can be repaired over and over again – costing you less. A repair kit consists of: new rotary faces and holders, stationary seats, o-rings, set screws, springs, and loading clips.
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.