PK 4

Piston seal PK 4


is a double-acting polyurethane piston seal designed for pneumatic cylinders (double-acting and single-acting), which is designed for small engagements and very low friction. The special profile utilizes air pressure for seal function in both radial and axial directions.

Benefits

- Can operate at very low pressure (0.2 bar) as well as at high pressure (20 bar).
- Narrow build-up reduces machining times.
- There is no stick-slip effect when starting from standstill or during straight reciprocating motion.
- Due to the special profile, this seal has very low wear.

Recommended technical conditions

Pressure: < 20 bar   
Speed: < 1 m/s
Temperature: -40 to +90°C
Medium: air (lubricated and non-lubricated),
mineral oils, mineral fats
Material
Standard polyurethane 85 ShA.    Compound designation:    A0

Installation

Seal to be installed in a closed groove. Remove burrs and sharp edges that could damage the seal. The piston must be free of burrs and the cylinder tube bevelled according to the assembly instructions in the introduction to the catalogue.
We recommend lubricating the gasket with mineral grease (HZ103W) before installation.

Product filtering


Number of products found: 6

Product number
Stock
Quantity
Uom
Shop
Unit price from
Inner
Ø d1
Outer
Ø D1
L1 Housing
height
H Seal
height
S Profile
width
L2 Bearing
length
d2 Bearing
diameter
Max
pressure
Max
temp
Min
temp
Max
speed
Compound 1 Compound 2 Compound 3 Compound
combination
Type Seal type

PK4-03200230030A0 PK 4 - Piston seal 32 x 23 x 3 A0

Yes
pc
on request
23
32
3
20
90
-40
1
A0
PK4
Piston seals

PK4-04000310030A0 PK 4 - Piston seal 40 x 31 x 3 A0

Yes
pc
on request
31
40
3
20
90
-40
1
A0
PK4
Piston seals

PK4-05000410030A0 PK 4 - Piston seal 50 x 41 x 3 A0

Yes
pc
on request
41
50
3
20
90
-40
1
A0
PK4
Piston seals

PK4-06300510040A0 PK 4 - Piston seal 63 x 51 x 4 A0

Yes
pc
on request
51
63
4
20
90
-40
1
A0
PK4
Piston seals

PK4-08000680040A0 PK 4 - Piston seal 80 x 68 x 4 A0

Yes
pc
on request
68
80
4
20
90
-40
1
A0
PK4
Piston seals

PK4-10000880040A0 PK 4 - Piston seal 100 x 88 x 4 A0

Yes
pc
on request
88
100
4
20
90
-40
1
A0
PK4
Piston seals

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