CP04-PD is a hydraulic seal, single acting, preloaded by 0-ring, asymmetric piston seal for standard applications, with interference design on the inner diameter to provide a good static fit in the groove. The dynamic sealing lip is shorter than the static lip to avoid drag pressure. Excellent static and dynamic sealing performance. For short pulsating strokes. No reverse leakage when changing direction. With selfadjusting rectangular retaining ring, it can beused for higher pressures and larger extrusion gaps.More suitable for narrower grooves.
Asymmetric single acting piston seal, with dynamic sealing lip being shorter than static one；
• O-ring in groove acts as energizer and creates preload；
• Interference fit on inside diameter；
• Various materials available for different purposes；
• Best sealing effect across wide temperature range；
• Active back up ring on low-pressure side of seal reduces extrusion and allows larger gap dimensions resp. higher system pressure；
• For pressure up to 700 bar as seal between pressurized space and atmosphere；
• Good sealing in low pressure ranges；
• Excellent static and dynamic sealing；
• Suitable for short stroke applications；
• Recommended when holding or positioning under pressure；
• No reverse leakage (i.e. minor relative motion of sealing edges when direction is changed)；
• For shorter seal heights；
Leveraging our advanced CNC machining technology, Carlock provides 24-hour rapid delivery on both standard and custom-engineered dimensions, offering a high-end and faster alternative to international brands. The CP04-PD stands out for its zero reverse leakage and superior reliability in short-stroke applications, especially where narrow grooves are required. With its robust sealing design and expert engineering support, it is the ideal choice for reciprocating pistons in heavy-duty hydraulic cylinders, high-precision industrial systems, and applications requiring oversized or specialized dimensions.
