R3 Assembly Seal

R3 Assembly Seal
An inexpensive replacement for compression packings in pumps that can convert to mechanical seals.

Features and Benefits

  • Large single spring compensates for minor shaft misalgnment.
  • Hex drive design distributes torque during start-up creating a positive seal that withstands revers pressure at shut-down and changes of pressure.
  • Crimped carbon holder retains carbon faces during installation without adhesives.

Technical Data and Dimensions

R3
All standard dimensions will be customized to fit your application.

Inches
Shaft Size Diameter
± .002
Size Code Seal OD
B
Single Short
± .125
Single Long
± .125
Double Short
± .125
Double Long
± .125
.500 008 .917 .812 1.187 1.140 1.520
.625 010 1.185 .875 1.312 1.170 1.600
.750 012 1.302 .875 1.312 1.220 1.650
.875 014 1.429 .937 1.375 1.280 1.720
1.000 016 1.552 1.000 1.562 1.340 1.900
1.125 018 1.600 1.062 1.625 1.470 2.031
1.250 020 1.875 1.062 1.625 1.470 2.031
1.375 022 1.920 1.125 1.687 1.530 2.100
1.500 024 2.125 1.125 1.687 1.530 2.100
1.625 026 2.375 1.375 2.000 1.780 2.410
1.875 030 2.515 1.500 2.125 1.910 2.530
2.125 034 2.938 1.687 2.375 2.100 2.780
2.250 036 2.938 1.687 2.375 2.100 2.780
2.375 038 3.300 1.812 2.500 2.240 2.920
2.500 040 3.500 1.812 2.500 2.300 2.980
2.625 042 3.500 1.937 2.750 2.300 3.250
2.750 044 3.500 1.937 2.750 2.430 3.250
2.875 046 3.800 2.062 2.875 2.480 3.380
3.000 048 3.800 2.062 2.875 2.480 3.380

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



Operating Specifications

Temperature limit:
-40C F to ﹢400 F ( -40 C to +205 C)
based on standard elastomers
Pressure limit to: 200 psi


Standard Material Construction

Metal Components: 302/304 SS

Face: Chemical Grade Carbon, Tungsten Carbide, Silicon Carbide

Elastomer: Nitrile or Vitron, also available upon request - EPR and neoprene

Seat: Ceramic, Silicon Carbide


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.