D-Ring Seal – D-Shaped Piston and Face Seal with Anti-Roll Design for Static Hydraulic Applications.
D-ring seal with D-shaped cross-section for piston and face sealing. Anti-roll, stable seating, uniform compression. NBR/FKM/PU, –35°C~120°C, ≤40 MPa.
D-Ring Seal – A precision-engineered D-shaped seal designed for static piston and face sealing applications. This hydraulic D-ring combines the elastic compression characteristics of an O-ring with the stability of a rectangular profile, providing superior sealing performance without the rolling tendency common in conventional O-rings. The flat back surface ensures secure groove retention and prevents twisting during assembly, while the rounded sealing face provides uniform compression and reliable leak-tight closure against mating surfaces. The robust cross-section resists extrusion and pressure-induced deformation, making this anti-roll D-ring ideal for static piston sealing, face seal flanges, manifold plates, and end covers. Material: NBR/FKM or polyurethane. Temp: –35°C to +120°C. Pressure: up to 40 MPa.
D-shaped cross-section seal for piston and face sealing applications
Flat back surface prevents rolling and ensures stable groove retention
Rounded sealing face provides uniform compression and leak-tight sealing
Combines O-ring elasticity with rectangular profile stability
Resists extrusion and pressure-induced deformation
High-pressure capability up to 40 MPa; wide temperature range –35°C to +120°C
Ideal for static pistons, manifolds, flanges, end covers, and valve bodies
D-Ring Seal – D-shaped cross-section seal for static piston and face applications. Anti-roll design ensures stable seating and leak-tight sealing. NBR/FKM/PU, –35°C~120°C, ≤40 MPa.
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
