Piston Seal Set P20

DESCRIPTION
P20 Piston Seal Set is duoble acting seal for medium duty application and housing according to ISO 7425-1. It is consisting of PTFE profile ring and an O-ring as energising element.

Features of this seal are very high static and dynamic sealing effect, high resistance against pressure, extrusion, abrasiion and low friction without the apperiance of stick-slip.

APPLICATION
Industrial vehicles
Agricultural machinery
Cranes
Presses
Handling equipment
Marine hydraulics
Injection moulding machines
Control and regulation equipment

MATERIAL

Standard material
Material Code SN203 SN209 SF207
O-ring NBR 70 ShA N7020 N7020  –
O-ring FKM 70 – – F9172
PTFE Bronze T1004 – T1004
PTFE glass,MoS2 – T1021 –
Applications Selection
Table		 PTFE Bronze-NBR
Set code SN203		 PTFE Glass-NBR
Set code SN209		 PTFE Bronze-FKM
Set code SF207
Hydraulic oils (-10..+200˚C) – – – – + +
Hydraulic oils (-30..+100˚C) + + + – – –
Water Hydraulics (-30..+100˚C) – – + + – –

OPERATING CONDITIONS

Pressure, Speed
Working pressure Max 40 Mpa
Running speed, v Up to 5 m/s
Medium, Working temperature
Material Code SN203 SN209 SF207
Hydraulic oils:HL, HLP -30.. +100 ˚C -30.. +100 ˚C -10.. +200 ˚C
HFA, HFB fluids – +5..+60 oC –
HFC fluids – -30..+60 oC –
HFD fluids – – -10.. +200 ˚C
Water – +5..+100oC –
Mineral greases -30.. +100 ˚C -30.. +100 ˚C -10.. +200 ˚C

DESIGN RECOMMENDATION

Max. permissible gap dimension, emax
Profile size Max operating pressure
L S 16 MPa 26 MPa 32 MPa 40 MPa
3,2 3,75 0,40 0,35 – –
4,2 5,50 0,50 0,40 0,30 –
6,3 7,55 0,55 0,45 0,35 0,30
8,1 10,50 0,60 0,50 0,40 0,30
Surface quality*
Surface roughness Ra Rmax
Sliding surfaces 0.05 .. 0,3μm ≤ 2,5 μm
Groove base ≤ 1,6 μm ≤ 6,3 μm
Groove flanks ≤ 3,0 μm ≤ 15 μm
Chamfer ≤ 4,0 μm ≤ 16 μm

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

ØD
Ød
H
L
S
Material
Filters Sort results
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ØD
Ød
H
L
S
C
R
O-ring size
Material
Order code
40
29
4
4.2
5.5
6
0.8
28.17x3.53
SF207
P20-120394
42
31
4
4.2
5.5
6
0.8
29.75x3.53
SF207
P20-120395
45
34
4
4.2
5.5
6
0.8
32.92x3.53
SF207
P20-120396
48
37
4
4.2
5.5
6
0.8
36.09x3.53
SF207
P20-120397
50
39
4
4.2
5.5
6
0.8
37.69x3.53
SF207
P20-120398
50
42.5
3
3.2
3.75
4.5
0.5
40.94x2.62
SF207
P20-120441
50
34.5
5.9
6.3
7.75
8
1.2
32.69x5.33
SF207
P20-120442
52
41
4
4.2
5.5
6
0.8
40.87x3.53
SF207
P20-120399
55
44
4
4.2
5.5
6
0.8
44.04x3.53
SF207
P20-120400
60
49
4
4.2
5.5
6
0.8
47.22x3.53
SF207
P20-120401
63
47.5
5.9
6.3
7.75
8
1.2
47.22x3.53
SF207
P20-120443
63
52
4
4.2
5.5
6
0.8
50.39x3.53
SF207
P20-120402
65
54
4
4.2
5.5
6
0.8
53.57x3.53
SF207
P20-120403
70
54.5
5.9
6.3
7.75
8
1.2
53.34x5.33
SF207
P20-120404
70
59
4
4.2
5.5
6
0.8
56.74x3.53
SF207
P20-120405
75
59.5
5.9
6.3
7.75
8
1.2
56.52x5.33
SF207
P20-120406
75
64
4
4.2
5.5
6
0.8
63.09x3.53
SF207
P20-120407
80
59
7.7
8.1
10.5
10.5
2
58.00x7.00
SF207
P20-120408
80
64.5
5.9
6.3
7.75
8
1.2
62.87x5.33
SF207
P20-120409
80
69
4
4.2
5.5
6
0.8
66.27x3.53
SF207
P20-120444
83
64
7.7
8.1
10.5
10.5
2
63.00x7.00
SF207
P20-120410
85
69.5
5.9
6.3
7.75
8
1.2
69.22x5.33
SF207
P20-120411
90
69
7.7
8.1
10.5
10.5
2
68.00x7.00
SF207
P20-120412
90
74.5
5.9
6.3
7.75
8
1.2
72.39x5.33
SF207
P20-120413
95
74
7.7
8.1
10.5
10.5
2
73.00x7.00
SF207
P20-120414
95
79.5
5.9
6.3
7.75
8
1.2
78.74x5.33
SF207
P20-120415
100
79
7.7
8.1
10.5
10.5
2
78.00x7.00
SF207
P20-120416
100
84.5
5.9
6.3
7.75
8
1.2
81.92x5.33
SF207
P20-120417
105
89.5
5.9
6.3
7.75
8
1.2
88.97x5.33
SF207
P20-120418
110
89
7.7
8.1
10.5
10.5
2
88.00x7.00
SF207
P20-120419
110
94.5
5.9
6.3
7.75
8
1.2
91.44x5.33
SF207
P20-120420
115
94
7.7
8.1
10.5
10.5
2
94.00x7.00
SF207
P20-120421
115
99.5
5.9
6.3
7.75
8
1.2
97.79x3.53
SF207
P20-120422
120
99
7.7
8.1
10.5
10.5
2
98.00x7.00
SF207
P20-120423
120
104.5
5.9
6.3
7.75
8
1.2
100.97x5.33
SF207
P20-120424
125
104
7.7
8.1
10.5
10.5
2
103.00x7.00
SF207
P20-120425
125
109.5
5.9
6.3
7.75
8
1.2
107.32x5.33
SF207
P20-120426
130
109
7.7
8.1
10.5
10.5
2
108.00x7.00
SF207
P20-120427
130
114.5
5.9
6.3
7.75
8
1.2
113.67x5.33
SF207
P20-120428
135
114
7.7
8.1
10.5
10.5
2
113.67x5.33
SF207
P20-120441
140
119
7.7
8.1
10.5
10.5
2
116.84x7.00
SF207
P20-120429
145
124
7.7
8.1
10.5
10.5
2
123.19x7.00
SF207
P20-120442
150
129
7.7
8.1
10.5
10.5
2
126.37x7.00
SF207
P20-120430
155
134
7.7
8.1
10.5
10.5
2
132.72x7.00
SF207
P20-120443
160
139
7.7
8.1
10.5
10.5
2
135.89x7.00
SF207
P20-120431
165
144
7.7
8.1
10.5
10.5
2
142.24x7.00
SF207
P20-120444
170
149
7.7
8.1
10.5
10.5
2
145.42x7.00
SF207
P20-120432
175
154
7.7
8.1
10.5
10.5
2
151.77x7.00
SF207
P20-120445
180
159
7.7
8.1
10.5
10.5
2
158.12x7.00
SF207
P20-120433
185
164
7.7
8.1
10.5
10.5
2
158.12x7.00
SF207
P20-120446
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