EV17 Cartridge Seal

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.

Technical Data and Dimensions

EV10
All standard dimensions will be customized to fit your application.

Inches
code size shaft size seal outboard distance rotary seat
outboard distance
gland outboard ditance .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

SIZES: Metric and sixteenth seals available against specific orders. Larger shaft diameters available against speficic orders.



Operating Specifications

Temperature limit:
C to 205C -40F to 400C
Based on standard elastomer.
Pressure limit to: Vacuum to 500psi
34.01 kPA
Shaft speeds to: 3600 rpm


Standard Material Construction

Metal Components: 316SS

Stationary
EV17 Face: Chemical Grade Carbon, Tungsten Carbide
EV17S Face: Chemical Grade Carbon, Chrome Oxide Carbon

Rotating
EV17 Seat: Ceramic, Silicon Carbide
EV17S Seat: 17-4PH SS (Heat Treated
Chrom Oxide Coating


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.

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.