| 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. |
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| 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 |
-- |
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 |
22 |
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 |
36 |
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 |
54 |
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 |
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 |
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 |
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
| All rights reserved. Subject to revision. |
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Copyright ©
Polyhydron Pvt. Ltd. Belgaum, India. |
Updated on May 11, 2010 05:20 pm .