The PSD piston rod seal is a high-performance, double-acting piston seal specifically engineered for standard and compact pneumatic cylinders. Its symmetrical lip profile with dual sealing edges delivers reliable bidirectional sealing, making it an ideal choice for applications where installation space is limited yet sealing integrity cannot be compromised.
Superior Design for Demanding Applications
The PSD seal features a compact cross-section with a unique lip geometry that ensures optimal sealing pressure distribution across the cylinder bore. Unlike traditional O-rings, the PSD’s double-lip design effectively suppresses seal rotation and twisting during reciprocating motion, significantly reducing wear and extending service life. The profile also maintains a controlled lubricating film between the seal and the cylinder surface, minimizing friction and heat generation even during high-cycle operations.
Material Versatility & Performance Range
The PSD series is available in multiple high-performance compounds to suit diverse operating environments:
NBR (standard): -40°C to +100°C, excellent for general-purpose pneumatic applications
FKM (high-temperature): -30°C to +200°C, ideal for hot environments
HNBR: Superior resistance to ozone and aging
EPDM & PTFE: For specialty media compatibility
Original text from: Hydraulic and Pneumatic Seals https://www.bszzseal.com/
