DYR Buffer Seal
This U-cup style buffer ring offers an asymmetric sealing lip profile, chamfered sealing edges, and pressure relieving capabilities to prevent inner pressure entrapment when employed in a tandem sealing system. This rod buffer seal is designed to absorb impact pressure fluctuations under high-load conditions thus increasing the life of the primary seal.
SEAL INFORMATION | |
MATERIAL | URETHANE U-STYLE POLYACETAL BACK-UP |
TEMPERATURE RANGE | -40° TO +230° F |
PRESSURE RANGE | 0 TO 8,000 PSI |
SPEED | 3 FT/SEC |
Part Number | A Nom. ID | B Nom. OD | C Nom. Ht |
DYR28-1.25-12 DYR28-1.37-12 DYR28-1.50-12 DYR28-1.62-12 DYR28-1.75-12 DYR32-1.75-20BU DYR32-1.87-22BU DYR28-2.00-12 DYR32-2.12-22BU DYR34-2.25-22BU DYR-25003 DYR34-2.50-22BU DYR-27503 DYR31-2.75-22BU DYR-30003 DYR31-3.00-22BU DYR-35003 DYR34-3.50-22BU DYR-40003 DYR31-4.00-22BU DYR-45003 DYR-47503 DYR-50003 DYR-55003 DYR31-5.75-23BU DYR-60003 DYR-65003 DYR-70003 DYR-75003 DYR-80003 DYR37-15.75-31BU | 1-1/4 1-3/8 1-1/2 1-5/8 1-3/4 1-3/4 1-7/8 2 2-1/8 2-1/4 2-1/2 2-1/2 2-3/4 2-3/4 3 3 3-1/2 3-1/2 4 4 4-1/2 4-3/4 5 5-1/2 5-3/4 6 6-1/2 7 7-1/2 8 15-3/4 | 1-13/16 1-15/16 2-1/16 2-3/16 2-5/16 2.4 2.531 2-9/16 2.77 2-15/16 3.116 3-3/16 3.366 3-3/8 3.616 3-5/8 4.116 4-3/16 4.616 4-5/8 5.116 5.366 5.616 6.116 6-3/8 6.616 7.116 7.616 8.116 8.616 16-1/2 | 1/8 1/8 1/8 1/8 1/8 .2 .22 1/8 .22 3/16 .235 3/16 .235 3/16 .235 3/16 .235 3/16 .235 3/16 .235 .235 .235 .235 .235 .235 .235 .235 .235 .235 .305 |