Piston U-Ring P30

DESCRIPTION
Single-acting Piston U-Ring P30 has asymmetrical profile and shortened outer lip designed for standardised housings according to ISO5597

Piston U-Ring P30 can be installed in “back-to-back” position in double-acting piston design with pressure on both sides. Has good static and dynamic sealing, high abrasion resistance and long service life.

APPLICATION
Generally used in hydraulic equipment
Standard hydraulic cylinders.
Presses
Support cilinders
Earth moving equipment

MATERIAL

Standard material
Material Code U5002
Material Base Polyurethane, 94 ShoreA
Color Dark blue

Advantages of U5002 Material
High mechanical properties
High wear resistance
Good media resistance

OPERATING CONDITIONS

Pressure; Speed
Working pressure,P Max 40 Mpa
Running speed, v 0,5 m/s
Material; Working temperature
Material Code U5002
Hydraulic oils:HL, HLP  -30 … +110 °C
HFA, HFB fluids +5 … +60 oC
HFC fluids -30 … +40 °C
Water +5 … +50 oC
Mineral greases -30 … +110 °C

DESIGN RECOMMENDATION

Max. permissible gap dimension, emax
Max operating pressure S≤5mm S=7,5mm S=10mm
16 Mpa 0,50 0,55 0,60
26 Mpa 0,40 0,45 0,50
32Mpa 0,35 0,40 0,45
40 Mpa 0,30 0,35 0,40
Surface quality*
Surface roughness Ra Rmax
Sliding surfaces 0,05.. 0,3 μm ≤ 2,5 μm
Groove base ≤ 1,6 μm ≤ 6,3 μm
Groove flanks ≤ 3,0 μm ≤ 15 μm

*Contact area Mr = 50% to 90% at cutting depth c=Rz/2 and reference line Cref=0%

ØD
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S
Material
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Material
Order code
Quantity
Sing in
25
15
8
9
5
21
5
U5002
P30-241012
30
20
8
9
5
26
5
U5002
P30-241013
32
22
10
11
5
28
5
U5002
P30-241014
35
25
8
9
5
31
5
U5002
P30-241015
40
25
10
11
7.5
34
6
U5002
P30-241016
40
30
10
11
5
36
5
U5002
P30-241017
40
32
5.5
6.3
4
37
4
U5002
P30-241018
45
30
10
11
7.5
39.0
6
U5002
P30-241019
50
30
12
13
10
42
7
U5002
P30-241020
50
35
10
11
7.5
44
6
U5002
P30-241021
50
40
10
11
5
46
5
U5002
P30-241022
55
35
12
13
10
47
7
U5002
P30-241023
60
40
12
13
10
52
7
U5002
P30-241024
60
45
10
11
7.5
54.0
6
U5002
P30-241025
60
50
10
11
5
56
5
U5002
P30-241026
63
43
12
13
10
55
7
U5002
P30-241027
63
48
12
13
7.5
57
6
U5002
P30-241028
63
53
12
13
5
59
5
U5002
P30-241029
65
50
10
11
7.5
59
6
U5002
P30-241030
70
50
12
13
10
62.0
7
U5002
P30-241031
70
55
12
13
7.5
64.0
6
U5002
P30-241032
70
60
12
13
5
66
5
U5002
P30-241033
75
55
12
13
10
67
7
U5002
P30-241034
75
60
12
13
7.5
69.0
6
U5002
P30-241035
80
60
12
13
10
72
7
U5002
P30-241036
80
65
12
13
7.5
74
6
U5002
P30-241037
80
70
12
13
5
76
5
U5002
P30-241038
85
70
12
13
7.5
79.0
6
U5002
P30-241039
90
70
12
13
10
82
7
U5002
P30-241040
90
75
12
13
7.5
84
6
U5002
P30-241041
90
80
12
13
7.5
89.0
6
U5002
P30-241042
100
80
12
13
10
92
7
U5002
P30-241043
100
85
12
13
7.5
94.0
6
U5002
P30-241044
110
90
12
13
10
102
7
U5002
P30-241045
110
95
12
13
7.5
104
6
U5002
P30-241046
115
95
15
16
10
107
7
U5002
P30-241047
120
100
12
13
10
112
7
U5002
P30-241048
125
105
15
16
10
117
7
U5002
P30-241049
130
110
15
16
10
122
7
U5002
P30-241050
140
120
15
16
10
132
7
U5002
P30-241051
150
130
15
16
10
142
7
U5002
P30-241052
160
140
15
16
10
152
7
U5002
P30-241053
170
150
15
16
10
162
7
U5002
P30-241054
180
160
15
16
10
172
7
U5002
P30-241055
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