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Home  > PRODUCTS  > Piston Seals  >  DKDF - PTFE Hydraulic Piston Seal with NBR/FKM O-Ring
DKDF - PTFE Hydraulic Piston Seal with NBR/FKM O-Ring

DKDF - PTFE Hydraulic Piston Seal with NBR/FKM O-Ring

Diameter Range
3-1600mm
Pressure Range
0-45MPa
Temperature Range
-30℃+200℃
Speed
1m/s
Medium
hydraulic oil, water and emulsion
Installation Recommendation

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Application and properties

Apply to cylinder piston,Consisting of a seal ring, an O-Ring, a pair of retaining rings and a pair of guide sleeves. The seal ring and cylinder bore conforming to be a symmetric section to achieve the sealing performance, with double acting sealing performance.

Standard materials

Sealing ring: filled PTFE

O-Ring: NBR / FKM

Guide ring: filled PTFE / PA

Working Conditions

Working  Conditions

Diameter Range

Pressure Range

Temperature Range

Speed

Medium

3-1600mm

0-45MPa

-30℃+100℃

1 m/s

hydraulic oil, water and emulsion

Installation Dimensions

D

d

b

d2

d3

a

c

f

e

Order No.

40
45
50

26
31
34

30
30
32

32
37
42

36
41
46

3.5
3
3

15.5
15.5
20.5

7.25
7.25
5.8

7
7
7

DKDF40*26*30
DKDF45*31*30
DKDF50*34*32

56
60
63

40
44
47

32
32
32

48
52
55

52
56
59

3
3
3

20.5
20.5
20.5

5.8
5.8
5.8

7
7
7

DKDF56*40*32
DKDF60*44*32
DKDF63*47*32

65
70
75

49
54
59

32
32
32

57
62
67

61
66
71

3
3
3

20.5
20.5
20.5

5.8
5.8
5.8

7
7
7

DKDF65*49*32
DKDF70*54*32
DKDF75*59*32

80
85
90

62
67
72

36
36
36

72
77
82

76
81
86

3
3
3

22.5
22.5
22.5

6.8
6.8
6.8

7
7
7

DKDF80*62*36
DKDF85*67*36
DKDF90*72*36

95
100
105

77
82
87

36
36
36

87
92
97

91
96
101

3
3
3

22.5
22.5
22.5

6.8
6.8
6.8

7
7
10

DKDF95*77*36
DKDF100*82*36
DKDF105*87*36

110
115
120

92
97
102

36
36
36

102
107
112

106
111
116

3
3
3

22.5
22.5
22.5

6.8
6.8
6.8

10
10
10

DKDF110*92*36
DKDF115*97*36
DKDF120*102*36

125
130
135

103
108
113

43
43
43

115
120
125

121
126
131

4
4
4

26.5
26.5
26.5

8.3
8.3
8.3

10
10
10

DKDF125*103*43
DKDF130*108*43
DKDF135*113*43

140
145
150

118
123
128

43
43
43

130
135
140

136
141
146

4
4
4

26.5
26.5
26.5

8.3
8.3
8.3

10
10
10

DKDF140*118*43
DKDF145*123*43
DKDF150*128*43

155
160
170

133
138
148

43
43
48

145
150
160

151
156
166

4
4
6

26.5
26.5
26.5

8.3
8.3
10.8

10
10
10

DKDF155*133*43
DKDF160*138*43
DKDF170*148*48

180
190
195

158
165
170

48
48
48

170
180
185

176
186
191

6
4.5
4.5

26.5
31.5
31.5

10.8
8.3
8.3

10
10
10

DKDF180*158*48
DKDF190*165*48
DKDF195*170*48

200
210
220

175
185
195

48
58
58

190
200
210

196
206
216

4.5
8
8

31.5
31.5
31.5

8.3
13.3
13.3

10
12
12

DKDF200*175*48
DKDF210*185*58
DKDF220*195*58

235
240
250

210
215
225


74
74

225
230
240

231
236
246

15
15
15

31.5
31.5
31.5

21.3
21.3
21.3

12
12
12

DKDF235*210*74
DKDF240*215*74
DKDF250*225*74

265
270
275

240
245
250

74
74
74

255
260
265

261
266
271

15
15
15

31.5
31.5
31.5

21.3
21.3
21.3

12
12
12

DKDF265*240*74
DKDF270*245*74
DKDF275*250*74

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Installation Dimensions

Product Message

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