Hydraulic Seals

Hydraulic seals, the best protection against leakage of liquids or gases

Hydraulic seals are used in hydraulic and pneumatic cylinder pistons. They are made with different profiles and materials and protect the cylinder head against possible leakage of liquids or gases. Hydraulic seals can be single or double effect, according to the direction of the pressure generated in the cylinder.

Below you will find more information about the main range of hydraulic seals: type, profile, material, as well as the pressure, temperature and speed that these seals support. In our stock you will find piston seals (PK3 and PK4), u-rings (UN, D2 and D3) and wiper seals (MW, ME1 and ME2).

Quote whenever you want, or, if you prefer, make your purchase directly on our online store. Remember that we are the fastest way of finding a seal, so if you are located on the Iberian Peninsula you will receive your order in less than 24 hours.

Hydraulic seals, main range

Type Profile Material Pressure
[Bars]
Temperature [ºC] Speed
[m/s]
Check stock
Piston Seal
PK3
PK3

NBR
+
POLYESTER+PA/GLASS FIBER

≤350 -30 to +100 ≤0,50

Piston Seal
PK4
PK4 NBR
+
POLYESTER+PA/GLASS FIBER
≤400 -30 to +100 ≤0,50

U-Ring
UN
UN Polyurethane 90Sh ≤350 -20 to +100 ≤0,50

U-Ring
D2
D2 Polyurethane 95Sh ≤400 -20 to +100

U-Ring
D3
D3 Polyurethane 95Sh ≤400 -20 to +100

Wiper Seal
MW
Wiper seal MW

NBR 90Sh + Metal
FPM 90Sh + Metal

-30 to  +100

Wiper Seal
ME1
Wiper Seal ME-1 Polyurethane 90SH + Metal -20 to +100

Wiper Seal
ME2
Wiper Seal ME-2 Polyurethane 90SH + Metal -20 to  +100