DS series check valves allow free flow in one direction and block flow in the counter direction.
Technical data
Size |
6 |
8 |
10 |
15 |
20 |
25 |
30 |
Threaded connection Inch |
G1/4″ |
G3/8″ |
G1/2″ |
G3/4″ |
G1″ |
G1 1/4″ |
G1 1/2″ |
Threaded connection Metric |
M14X1.5 |
M18X1.5 |
M22X1.5 |
M27X2 |
M33X2 |
M42X2 |
M48X2 |
Max .flow rate(L/min) |
15 |
30 |
40 |
120 |
200 |
300 |
400 |
Max .operating pressure(Mpa) |
31.5 |
Distance across flats(mm) |
19 |
24 |
30 |
36 |
46 |
60 |
63 |
Length(mm) |
58 |
58 |
72 |
85 |
98 |
120 |
132 |
Weight(KGS) |
0.1 |
0.2 |
0.3 |
0.5 |
1 |
2.1 |
2.5 |
Valve body(Material)Surface treatment |
Steel Body Surface Black Oxide |
Oil cleanliness |
NAS1638 class 9 and ISO4406 class 20/18/15 |
Threaded connection dimensions
![222](//cdn.goodao.net/hanshang-hydraulic/65e6ac95.jpg)
Subplate dimensions
![333](//cdn.goodao.net/hanshang-hydraulic/bf4cce621.jpg)
Size |
B |
B1 |
L |
L1 |
L2 |
L3 |
L4 |
L5 |
D |
D1 |
10 |
87 |
66.7 |
90 |
23.5 |
7.2 |
— |
35.8 |
42.9 |
11 |
4-M10/20 |
20 |
110 |
79.4 |
120 |
23.4 |
11.1 |
— |
49.2 |
60.3 |
22 |
4-M10/20 |
30 |
128 |
96.8 |
148 |
27.8 |
16.7 |
42.1 |
67.5 |
84.2 |
28 |
6-M10/20 |
![44](//cdn.goodao.net/hanshang-hydraulic/63c833df.jpg)
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