Description
Seat type pilot operated check valve with external drain. Interface conforming to ISO 5781. Three sizes in subplate mounting construction. Six sizes in threaded body construction. Pilot operated check valve - External drain
Section

Unit Dimensions

Threaded port body

Size

Mass kg.

B1

B2

D1

D2

H1

L1

L2

L3

L4

L5

L6

L7

L8

L9

T1

10

3.1

66.5

85

30

G1/2

47

27.5

18.5

10.5

33.5

64.5

18

95

131

9.25

14

20

5.5

79.5

100

44

G1

58

36.7

17.3

13.3

50.5

83.7

20

114

154

10.3

18

30

10.4

97

120

60

G1 1/2

75

54.5

15.5

20.5

73.5

112.5

29

145

203

11.3

22

 

Subplate mounting body

Size

Mass kg.

B1

B2

H1

H2

L1

L2

L3

L4

L5

L6

L7

10

3.1

66.7

85

47

47

42.9

--

18.5

18

71

131

9.15

20

5.5

79.4

100

58

45

60.3

--

17.2

20

88

154

10.3

30

10.5

96.8

120

75

65

84.1

42.1

15.4

29

111

203

11.6

 

Subplate

Size

Model

Mass kg

B1

B2

B4

B5

B6

B7

--

B9

B10

B11

ØD1

ØD2

ØD3

H1

H2

L1

L2

L3

L5

10

1Sp06G02 1Sp06G03 1Sp06G04

2.4

86

9.7

7.9

33.3

58.7

66.7

--

-7.9

33.3

58.7

13

G 1/4 
G 3/8 
G 1/2

22 
25 
30

15

29

42.9

35.7

31.8

--

20

1Sp08G06 1Sp08G08

5.2

112

16.3

6.4

39.7

73

79.4

--

3

39.7

75

22

G 3/4 
G1

36 
44

25

45

60.3

49.2

44.5

--

30

1Sp09G10 1Sp09G12

8.5

140

21.6

4

48.4

92.9

96.8

--

1.6

48.4

98.5

31

G1 1/4 
G1 1/2

54 
60

35

47

84.1

67.5

62.7

42.1

 

Size

Model

L6

L7

L8

L9

L10

L11

L12

L13

L15

L16

L17

L18

L19

R

T1

Valve fixing screws (S.H.C.S.)

Tightening torque

10

1Sp06G02 1Sp06G03 1Sp06G04

21.4

21.4

7.1

45.9

10

121

141

85 87 89

67.3

67.3

49 47 45

82

53

40

12 
12 
14

M10 x 60 L, 4 nos.

70 Nm

20

1Sp08G06 1Sp08G08

39.7

20.8

11.1

22

16

104

136

77 82

42.6

64

27 22

57

47

52

16 
18

M10 x 60 L, 4 nos.

70 Nm

30

1Sp09G10 1Sp09G12

59.6

24.6

16.7

33

10

150

170

111 115

60

99.1

39 35

90

60

65

20 
22

M10 x 60 L, 4 nos.

70 Nm

 

Technical Specifications
Construction ............................... Seat type valve with decompression feature
externally drained.
Mounting type ............................ Threaded ports or subplate mounting.
Interface conforming to ISO 5781.
Mounting position ...................... Optional.
Direction of flow ........................ Free flow from port A to port B.
Piloted flow from port B to port A.
Operating pressure ..................... 315 bar for all ports.
Control pressure ......................... 5 to 315 bar.
Cracking pressure ...................... 1 bar.
Area ratios .................................. Pilot piston : Decom poppet = 16 : 1
Pilot piston : Main poppet = 2 : 1
Pilot piston : Pusher pin = 6.25 : 1
Hydraulic medium ...................... Mineral oil.
Viscosity range ........................... 10 cSt to 380 cSt.
Fluid temperature range ............. -10 °C to +80 °C.
Fluid cleanliness requirement ..... As per ISO 16/13.
Flow handling capacity .............. Refer graph below.
Mass ....................................... Refer individual table.

 

Performance Curves

Oil used : ISO VG 68, Viscosity : 68 cSt @ 40 ºC, temp. @ test : 50 ºC.

Ordering Informations

Note : Subplate to be ordered separately

 

Pilot operated check valve External drain CL
Port Size
Mounting
Design Code 10

Product Code

 

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Subject to revision.

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78-80, Machhe Industrial Estate, Machhe, Belgaum - 590 014. Karnataka, INDIA. 
Phone :
+91-0831-2411001.  Fax : +91-0831-2411002 ,  
E-mail :
 
polyhydron@vsnl.com ,  Website :  www.polyhydron.com

 

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Updated on May 11, 2010 05:20 pm .