FPS SOFT AIR x-ring piston head seal

X-RING piston head seals (XRTP) with a quad-lobe cross-section do not round out in their seat during dynamic stresses.

X-Rings have less wear compared to O-Rings because they require less radial pre-compression, which translates to lower contact pressure.

A lubricant reservoir can form between the sealing lips.

Sealing effect is optimized thanks to a better pressure distribution due to the square cross-section.

X-Rings eliminate any negative effects due to the mold parting line, as this is located in the groove between the two lips.

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