The main materials are : WCB, low temperature steel, dual phase steel, titanium alloy, aluminum alloy, Inconel, SS304, SS304L.SS316, SS616L
|
Check valve parameter |
| Pressure |
Caliber |
Size |
Weight |
A pair of flanges for reference |
| NPS |
DN |
L |
D |
D2 |
D3 |
D4 |
Center distance D1 |
Number of bolt holes |
Diameter of bolt d |
Bolt length L1 |
| KG |
in |
mm |
RF |
RJ |
| |
′1/2" |
15 |
25 |
46 |
15 |
25 |
25 |
0.28 |
60.5 |
4 |
´1/2 |
M14 |
90 |
´- |
| ′3/4" |
20 |
31.5 |
56 |
19 |
30 |
30 |
0.42 |
70 |
4 |
´1/2 |
M14 |
100 |
´- |
| 1" |
25 |
35.5 |
65 |
24 |
36 |
36 |
0.56 |
79.5 |
4 |
´1/2 |
M14 |
105 |
120 |
| 11/4" |
32 |
40 |
74 |
31 |
43 |
43 |
0.75 |
89 |
4 |
´1/2 |
M14 |
115 |
130 |
| CLass150 |
′11/2" |
40 |
45 |
84 |
39 |
52 |
52 |
1.3 |
98.5 |
4 |
´1/2 |
M14 |
120 |
135 |
| PN2.0MPA |
′2" |
50 |
56 |
103 |
48 |
62 |
62 |
2.1 |
120.5 |
4 |
´5/8 |
M16 |
140 |
155 |
| |
′21/2" |
65 |
63 |
122 |
62 |
75 |
75 |
2.8 |
139.5 |
4 |
´5/8 |
M16 |
155 |
170 |
| 3" |
80 |
71 |
135 |
76 |
90 |
90 |
3.6 |
152.5 |
4 |
´5/8 |
M16 |
165 |
180 |
| 4" |
100 |
80 |
173 |
95 |
112 |
112 |
4.8 |
190.5 |
8 |
´5/8 |
M16 |
175 |
190 |
| 5" |
125 |
110 |
195 |
110 |
125 |
132 |
12 |
216.5 |
8 |
´3/4 |
M20 |
210 |
225 |
| 6" |
150 |
125 |
220 |
127 |
150 |
158 |
17 |
241.5 |
8 |
´3/4 |
M20 |
230 |
245 |
| 8 |
200 |
160 |
277 |
165 |
200 |
208 |
29 |
298.5 |
8 |
´3/4 |
M20 |
270 |
285 | |
