Kurv-Baks
Product Catalog
PAI Kurv-Bak™ hard rubber back-up rings can be made in a variety of materials to help prevent early seal failure at higher pressures.
Item # |
Nominal C/S (inches) |
Nominal I.D. (inches) |
Nominal O.D. (inches) |
Thickness (Inches) |
I.D. (inches) |
O.D. (Inches) |
---|---|---|---|---|---|---|
888-237 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3 3/8 | Nominal O.D. (inches) N/A 3 5/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 3.381 | O.D. (Inches) N/A 3.617 |
888-238 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3 1/2 | Nominal O.D. (inches) N/A 3 3/4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 3.506 | O.D. (Inches) N/A 3.742 |
888-239 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3 5/8 | Nominal O.D. (inches) N/A 3 7/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 3.631 | O.D. (Inches) N/A 3.867 |
888-240 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3 3/4 | Nominal O.D. (inches) N/A 4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 3.756 | O.D. (Inches) N/A 3.992 |
888-241 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 3 7/8 | Nominal O.D. (inches) N/A 4 1/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 3.881 | O.D. (Inches) N/A 4.117 |
888-242 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4 | Nominal O.D. (inches) N/A 4 1/4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.006 | O.D. (Inches) N/A 4.242 |
888-243 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4 1/8 | Nominal O.D. (inches) N/A 4 3/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.131 | O.D. (Inches) N/A 4.367 |
888-244 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4 1/4 | Nominal O.D. (inches) N/A 4 1/2 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.256 | O.D. (Inches) N/A 4.492 |
888-245 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4 3/8 | Nominal O.D. (inches) N/A 4 5/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.381 | O.D. (Inches) N/A 4.617 |
888-246 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4.5 | Nominal O.D. (inches) N/A 4 3/4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.506 | O.D. (Inches) N/A 4.742 |
888-247 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4 5/8 | Nominal O.D. (inches) N/A 4 7/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.631 | O.D. (Inches) N/A 4.867 |
888-248 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4 3/4 | Nominal O.D. (inches) N/A 5 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.768 | O.D. (Inches) N/A 5.004 |
888-249 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 4 7/8 | Nominal O.D. (inches) N/A 5 1/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 4.893 | O.D. (Inches) N/A 5.129 |
888-250 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 | Nominal O.D. (inches) N/A 5 1/4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.018 | O.D. (Inches) N/A 5.254 |
888-251 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 1/8 | Nominal O.D. (inches) N/A 5 3/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.143 | O.D. (Inches) N/A 5.379 |
888-252 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 1/4 | Nominal O.D. (inches) N/A 5 1/2 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.268 | O.D. (Inches) N/A 5.504 |
888-253 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 3/8 | Nominal O.D. (inches) N/A 5 5/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.393 | O.D. (Inches) N/A 5.629 |
888-254 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 1/2 | Nominal O.D. (inches) N/A 5 3/4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.518 | O.D. (Inches) N/A 5.754 |
888-255 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 5/8 | Nominal O.D. (inches) N/A 5 7/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.643 | O.D. (Inches) N/A 5.879 |
888-256 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 3/4 | Nominal O.D. (inches) N/A 6 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.768 | O.D. (Inches) N/A 6.004 |
888-257 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 5 7/8 | Nominal O.D. (inches) N/A 6 1/8 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 5.893 | O.D. (Inches) N/A 6.129 |
888-258 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 6 | Nominal O.D. (inches) N/A 6 1/4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 6.018 | O.D. (Inches) N/A 6.254 |
888-259 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 6 1/4 | Nominal O.D. (inches) N/A 6 1/2 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 6.268 | O.D. (Inches) N/A 6.504 |
888-260 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 6 1/2 | Nominal O.D. (inches) N/A 6 3/4 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 6.518 | O.D. (Inches) N/A 6.754 |
888-261 | Nominal C/S (inches) N/A 1/8 | Nominal I.D. (inches) N/A 6 3/4 | Nominal O.D. (inches) N/A 7 | Thickness (Inches) N/A .050 | I.D. (inches) N/A 6.768 | O.D. (Inches) N/A 7.004 |