DYR

U-cup style buffer ring offers an asymmetric sealing lip profile, champhered 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
PART NUMBER (Prefix)(CS) - (Inside Dia) - (O-Ring CS)
Part # Groove Dia. (in) Groove Width (in) Nominal Rod Dia. Seal I.D. (in) Seal Width (in) Diametrical Clearance Gap 1000 PSI (in) Diametrical Clearance Gap 3000 PSI (in) Diametrical Clearance Gap 5000 PSI (in)
DYR-25003 3.116 +0.005/-0 0.247 +0.010/-0 2-1/2 0.235 0.030 0.022 0.018
DYR-27503 3.366 +0.005/-0 0.247 +0.010/-0 2-3/4 0.235 0.030 0.022 0.018
DYR-30003 3.616 +0.005/-0 0.247 +0.010/-0 3 0.235 0.030 0.022 0.018
DYR-35003 4.116 +0.005/-0 0.247 +0.010/-0 3-1/2 0.235 0.030 0.022 0.018
DYR-40003 4.616 +0.005/-0 0.247 +0.010/-0 4 0.235 0.030 0.022 0.018
DYR-45003 5.116 +0.005/-0 0.247 +0.010/-0 4-1/2 0.235 0.030 0.022 0.018
DYR-47503 5.366 +0.005/-0 0.247 +0.010/-0 4-3/4 0.235 0.030 0.022 0.018
DYR-50003 5.616 +0.005/-0 0.247 +0.010/-0 5 0.235 0.030 0.022 0.018
DYR-55003 6.116 +0.005/-0 0.247 +0.010/-0 5-1/2 0.235 0.030 0.022 0.018
DYR-60003 6.616 +0.005/-0 0.247 +0.010/-0 6 0.235 0.030 0.022 0.018
DYR-65003 7.116 +0.005/-0 0.247 +0.010/-0 6-1/2 0.235 0.030 0.022 0.018
DYR-70003 7.616 +0.005/-0 0.247 +0.010/-0 7 0.235 0.030 0.022 0.018
DYR-75003 8.116 +0.005/-0 0.247 +0.010/-0 7-1/2 0.235 0.030 0.022 0.018
DYR-80003 8.616 +0.005/-0 0.247 +0.010/-0 8 0.235 0.030 0.022 0.018
DYR28-1.25-12 1.819 ±0.004 0.140 ±0.005 1-1/4 1/8 0.012 0.008 0.005
DYR28-1.50-12 2.067 ±0.004 0.140 ±0.005 1-1/2 1/8 0.012 0.008 0.005
DYR28-1.75-12 2.319 ±0.004 0.140 ±0.005 1-3/4 1/8 0.012 0.008 0.005
DYR28-2.00-12 2.567 ±0.004 0.140 ±0.005 2 1/8 0.012 0.008 0.005
DYR31-2.75-22BU 3.402 ±0.004 0.234 ±0.005 2-3/4 3/16 0.030 0.022 0.018
DYR31-3.00-22BU 3.649 ±0.004 0.234 ±0.005 3 3/16 0.030 0.022 0.018
DYR31-4.00-22BU 4.669 ±0.004 0.234 ±0.005 4 3/16 0.030 0.022 0.018
DYR32-1.75-20BU 2.395 ±0.005 0.220 ±0.005 1-3/4 0.22 0.030 0.022 0.018
DYR34-2.25-22BU 2.929 ±0.004 0.234 ±0.005 2-1/4 3/16 0.030 0.022 0.018
DYR34-2.50-22BU 3.177 ±0.004 0.234 ±0.005 2-1/2 3/16 0.030 0.022 0.018
DYR34-3.50-22BU 4.169 ±0.004 0.234 ±0.005 3-1/2 3/16 0.030 0.022 0.018