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

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

Diameter Range
3-1600mm
Pressure Range
0-40MPa
Temperature Range
-30℃+200℃
Speed
2 m/s
Medium
hydraulic oil, flame retardant liquid, water and others
Installation Recommendation

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Installation Sizes

Groove    Diameter      DN H9

Groove    Diameter

Groove Width

Radius

Radial    Clearance                S max.

O-Ring Cross    Section

X-Ring Seal    Cross Section

Standard    Application

Light    Application

d1    h9

L1+0.2

R1

10MPa

20MPa

30MPa

d2

W

15 - 39.9

40 - 79.9

DN -    11.0

4.2

1.0

0.25

0.15

0.10

3.53

1.78

40 - 79.9

80 - 132.9

DN -    15.5

6.3

1.3

0.3

020

0.15

5.33

1.78

80 - 132.9

133 - 252.9

DN -    21.0

8.1

1.8

0.3

0.20

0.15

7.00

2.62

133 - 252.9

--

DN -    24.5

8.1

1.8

0.3

0.20

0.15

7.00

2.62

253 - 462.9

--

DN -    28.0

9.5

2.5

0.45

0.30

0.25

8.40

3.53

463 - 700

--

DN -    35.0

11.5

3.0

0.55

0.40

0.35

10.00

5.33

Application and properties

Apply to the working condition of fast speed, high pressure, and the necessary pressure keeping. Recommended for double-acting pistons as piston-type energy storage, supporting cylinder and positional cylinder. Double safety with low friction and high elasticity, good dynamic and static sealing performance, larger extrusion clearances can be allowed, at the same time with the function of holding pressure, less leakage in the hydraulic cylinder. Simple groove, small installation space, excellent sliding performance, no crawling phenomenon.

Standard materials

Sealing ring: filled PTFE

O-Ring: NBR / FKM

X-Ring: NBR / FKM

Working Conditions

Working  Conditions

Diameter Range

Pressure Range

Temperature Range

Speed

Medium

3-1600mm

0-40MPa

-30℃+200℃

2 m/s

hydraulic oil, flame retardant liquid, water and others

Installation Dimensions

Bore Dia.

Groove Dia.

Groove Width

Order No.

O-Ring Dimension

d h9

D1 H9

L1+0.2

70
70
75

59
54.5
64

4.2
6.3
4.2

DAQ70*59*4.2
DAQ70*54.5*6.3
DAQ75*64*4.2

56.74*3.53
53.34*3.53
63.09*3.53

80
80
85

64.5
59
69.5

6.3
8.1
6.3

DAQ80*64.5*6.3
DAQ80*59*8.1
DAQ85*69.5*6.3

62.87*5.33
58*7.0
69.22*5.33

85
90
90

64
74.5
69

8.1
6.3
8.1

DAQ85*64*8.1
DAQ90*74.5*6.3
DAQ90*69*8.1

63*7.0
72.39*5.33
68*7.0

95
95
100

79.5
74
84.5

6.3
8.1
6.3

DAQ95*79.5*6.3
DAQ95*74*8.1
DAQ100*84.5*6.3

78.74*5.33
73*7.0
81.92*5.33

100
105
105

79
89.5
84

8.1
6.3
8.1

DAQ100*79*8.1
DAQ105*89.5*6.3
DAQ105*84*8.1

78*7.0
88.27*5.33
83*7.0

110
110
115

94.5
89
99.5

6.3
8.1
6.3

DAQ110*94.5*6.3
DAQ110*89*8.1
DAQ115*99.5*6.3

91.44*5.33
88*7.0
97.79*5.33

115
120
120

94
104.5
99

8.1
6.3
8.1

DAQ115*94*8.1
DAQ120*104.5*6.3
DAQ120*99*8.1

93*7.0
100.97*5.33
98*7.0

125
125
130

109.5
104
114.5

6.3
8.1
6.3

DAQ125*109.5*6.3
DAQ125*104*8.1
DAQ130*114.5*6.3

107.32*5.33
103*7.0
113.67*5.33

130
135
140

109
114
119

8.1
8.1
8.1

DAQ130*109*8.1
DAQ135*114*8.1
DAQ140*119*8.1

108*7.0
113.67*5.33
116.84*7.0

150
160
170

129
139
149

8.1
8.1
8.1

DAQ150*129*8.1
DAQ160*139*8.1
DAQ170*149*8.1

126.37*7.0
135.89*7.0
145.42*7.0

180
190
200

159
169
179

8.1
8.1
8.1

DAQ180*159*8.1
DAQ190*169*8.1
DAQ200*179*8.1

158.12*7.0
164.47*7.0
177.17*7.0

210
220
230

189
199
209

8.1
8.1
8.1

DAQ210*189*8.1
DAQ220*199*8.1
DAQ230*209*8.1

183.52*7.0
196.22*7.0
208.92*7.0

240
250
250

219
229
225.5

8.1
8.1
8.1

DAQ240*219*8.1
DAQ250*229*8.1
DAQ250*225.5*8.1

215.27*7.0
227.97*7.0
227.97*7.0

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Installation Dimensions

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