The 109 Series rod seal is a low-friction design, consisting of a PTFE-filled seal and an O-ring energizer. The sealing lip design is optimized to ensure maximum sealing performance at both low and high pressures. The lip design features a “pump-back” capability, which eliminates pressure trapping when used as a buffer seal in a Zero-Leak Technology configuration.
Compatible with a wide range of media
Available in diameters up to 2100 mm
System Seals’ unique PTFE-filled compounds provide ultra-low friction and high-speed performance with minimal wear. The standard compounds are PTFE with Bronze filler, or PTFE filled with Glass-Moly. The temperature range of the seal can be increased by selecting a FPM O-ring in place of the standard NBR O-ring.
|PTFE-Bronze Compound + NBR O-ring||MT23|
|PTFE-Bronze Compound + FPM O-ring||MT26|
|PTFE-Glass/MoS2 compound + NBR O-Ring||MT83|
|PTFE-Glass/MoS2 compound + FPM O-ring||MT86|
|water oil emulsions (HFA)||-||-||+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.