A single-acting piston seal operates in the same way as a rod seal, but with one main difference - the dynamic sealing lip of a piston seal is located on the outside.

Double-acting piston seals are designed symmetrically as they are pressurised from both sides. Piston seals are sometimes equipped with pre-loading elements in order to create an even tighter seal. At higher operating pressures, additional support rings are used in order to avoid seal extrusion.

When you’re looking for precision made pistol seals you can count on, you’ve come to the right place. Our seals come in a choice of profiles and materials with different pressure and temperature tolerances as you’ll see in the table below.

Profile Type Standard Material Pressure (bar) Temperature (°C) Surface Speeds (m/sec)
PS01 PU
NBR
FPM
400
160
160
-30 to 105
-25 to 100
-20 to 210
0,5
PS01A PU
NBR
FPM
160
160
160
-30 to 105
-25 to 100
-20 to 210
0,5
PS01B PU
NBR
FPM
400
160
160
-30 to 105
-25 to 100
-20 to 210
0,5
PS02 PU/POM
NBR/POM
FPM/PTFE
700
250
250
-30 to 100
-25 to 100
-20 to 210
0,5
PS02A PU/POM
NBR/POM
FPM/PTFE
700
250
250
-30 to 100
-25 to 100
-20 to 210
0,5
PS03 PU/NBR 400 -25 to 100 0,5
PS04 PU/NBR/POM 700 -25 to 100 0,5
PS05 PU
NBR
25 -30 to 105
-25 to 100
1
PS08 PU-D57/NBR
PTFE/NBR
250
400
-25 to 100 1
15
PS08A PU-D57/NBR
PTFE/NBR
250
400
-25 to 100 1
15
PS08B PU-D57/NBR
PTFE/NBR
250
400
-25 to 100 1
10
PS08C PTFE/NBR 400 -25 to 100 2
PS08D PTFE/NBR 400 -25 to 100 3
PS08E PU-D57/NBR
PTFE/NBR
250
400
-25 to 100 1
10
PS08F PU-D57/NBR 250 -25 to 100 1
PS81 PU-D57/NBR
PTFE/NBR
250
400
-25 to 100 1
10
PS09 PU/NBR/POM 400 -25 to 100 0,5
PS09A PTFE/NBR/POM 400 -25 to 100 1
PS16 NBR 160 -25 to 100 0,5
PS16A NBR 160 -25 to 100 0,5
PS17 PU/POM
NBR/POM
400
250
-25 to 100 0,5
PS17A PU/POM
NBR/POM
400
250
-25 to 100 0,5
PS17B PU/POM
NBR/POM
400
250
-25 to 100 0,5
PS19 PTFE/V-Spring 160 -200 to 260 15
PS20 NBR/POM 700 -25 to 100 0,5
PS23 PU/NBR/POM 400 -25 to 100 0,5
PS35 PU 400 -30 to 105 0,4
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