The 288 Series Heavy-Duty Piston Seal is a low-friction design, consisting of a PTFE filled seal, a profiled energizer and two integrated backup rings. It is designed for large-diameter, double-acting cylinders in challenging applications, where high pressure and large extrusion gaps exist.
Double acting applications
Compatible with a wide range of media
Available in diameters up to 2100 mm
The 288 Series is made from custom blended PTFE filled compounds that provide ultra-low friction and high-speed performance with minimal wear. The standard compounds are PTFE filled with Bronze filler, or PTFE filled with Glass-Moly. The backup rings can be made from Polyamide, Delrin and POM. The temperature range of the seal can be increased by selecting a FPM energizer in place of the standard NBR energizer.
|PTFE-Bronze + NBR + POM||MT24|
|water oil emulsions (HFA)||-||-0||+5…+60||+40…+140|
|water-glycol fl uids (HFC)||-||-||-30…+60||-22…+140|
|polyol esters (HFD)||-||-||-||-|
|Speed||5 m/s (16.5 ft/sec)|
|Pressure||400 bar (6000 psi)|
Note:for other materials or fluids please contact our engineering department.