Equivalent to Hunger Hydraulics® "OBVD, STI & STA", SKF Economos® "ST109" and Simrit Freudenberg® "BA, BB, BD & BC" Profiles.

DST109: Backup Rings

SCS, INC. DST109: Inactive contoured back-up ring , most commonly used with O-ring to avoid gap extrusion. Split and non-split design available. Suitable for large extrusion gaps and large diameters. Extremely adaptive possibilities for diverse temperatures and media with a wide selection of seal materials. Available in standard, metric and custom sizes from 0-200" in diameter.

SEAL INFORMATION
Profile DST109
TEMPERATURE RANGE -65° to +400° F
PRESSURE RANGE 0 to 6,000 PSI
SPEED 0.5 m/s

MAXIMUM PSI Per Extrusion GAP Dimension
MAX DIAM. GAP: 0.032″ 0.015″ 0.012″ 0.009″
PRESSURE: 3000 PSI 5000 PSI 7000 PSI 10,000 PSI

*Disclaimer: PSI Range is based upon material and extrusion gap.