K702

 

 

Material

Material

NBR  FABRIC+ POM ACETAL

 

Introduction

 


K702 is a double acting seals. The fabric rubber sealing element is designed with multi lip for efficient dynamic sealing.

Double acting piston seal, suitable for heavy duty applications. The seal set consists of 3 elements.

1.      Two Acetal full width anti-extrusion wear rings.

2.      High specification NBR 80 shore and NBR impregnated cotton sealing element.

Advantages

Ø  Good sealing effect

Ø  Economic sealing. It is combined guiding for piston

Ø  Simple installation

Ø  Long Life

Ø  Extremely good sealing effect at low pressure.

Ø  Easy assembly.

Ø  Simple solution.

Material

Power-transmission fluid

Temperature C

Speed

Pressure

 

NBR Fabric

POM

Mineral Oil

 -45  ÷  110˚

≤  0.5m/s

400 bar

HFC Water Glycol

-30  ÷  60˚

 

 

HFA 5/95 Water base fluid, Water

+5  ÷  60˚

 

 

 

 

                                                                                         

Chamfers & Rad (mm)

 

Tolerance

Surface Finishing

S  ≤

 

5.0

7.5

8.0

10.0

12.5

15.0

   

Piston

µm Ra (for rod only) µm Rt

C  ≥

 

2.4

4.0

5.0

5.0

6.5

7.5

   

js11

0.1   ÷ 0.4

≤   4

r1  ≤

0.2

0.4

0.4

0.4

0.4

0.8

0.8

   

H9

≤  1.6

≤  10

r2  ≤

0.4

0.4

0.4

0.4

0.4

0.8

0.8

   

+0.25   0

≤  3.2

≤  16

 

  

D1

d1

L1

d2

d3

L2

R1

R2

32

24

15.5

28

31.4

4.2

0.2

0.2

35

27

15

31

34.4

3.2

0.2

0.2

40

32

15.5

36

39.4

4.2

0.2

0.2

45

37

15.5

41

44.4

4.2

0.2

0.2

50

38

20.5

46

49.4

4.2

0.2

0.2

55

43

20.5

51

54.4

4.2

0.2

0.2

60

48

20.5

56

59.4

4.2

0.2

0.2

63

51

20.5

59

62.4

4.2

0.2

0.2

65

53

20.5

61

64.4

4.2

0.2

0.2

70

58

20.5

66

69.4

4.2

0.2

0.2

75

63

20.5

71

74.4

4.2

0.2

0.2

80

66

22.5

76

79.4

5.2

0.2

0.2

85

71

22.5

81

84.4

5.2

0.2

0.2

90

76

22.5

86

89.4

5.2

0.2

0.2

100

86

22.5

96

99.4

5.2

0.2

0.2

105

91

22.5

101

104.4

5.2

0.2

0.2

110

96

22.5

106

109.4

5.2

0.2

0.2

120

106

22.5

116

119.4

5.2

0.2

0.2

125

108

26.5

121

124.4

5.2

0.2

0.2

140

123

26.5

136

139.4

7.2

0.2

0.2

150

133

26.5

146

149.4

7.2

0.2

0.2

160

143

26.5

156

159.4

7.2

0.2

0.2

180

163

26.5

176

179.4

7.2

0.2

0.2

200

180

31.5

196

199.4

9.2

0.2

0.2

220

200

31.5

216

219.4

9.5

0.2

0.2