Wafer Type Dual Plate Check Valve
Applicable Standards

Design description
Main parts and material list
No |
Part Name |
ASTM Material |
|||||||
Carbon steel |
1.25Cr-0.5Mo |
2.25Cr-1Mo |
304 Type |
316 Type |
304L Type |
316L Type |
20 Alloy |
||
1 |
Body |
A216 WCB |
A217 WC6 |
A217 WC9 |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
A351 CN7M |
2 |
Plate |
WCB+13Cr*1 |
A217 WC6+HF |
A217 WC9+HF |
A351 CF8 |
A351 CF8M |
A351 CF3 |
A351 CF3M |
A351 CN7M |
3 |
Stop Pin |
A276 410 |
A217410 |
A276 410 |
A276 304 |
A276 316 |
A276 304L |
A276 316L |
20-Alloy |
4 |
Back Spring |
Si-Mn steel |
Cr-V Steel |
Cr-V Steel |
A313304 |
A313316 |
Inconel 750 |
Inconel 750 |
Inconel 750 |
5 |
Hinge Pin |
A276 410 |
A276 410 |
A276 410 |
A276 304 |
A276 316 |
A276 304L |
A276 316L |
20-Alloy |
6 |
Eyebolt |
Carbon steel |
Carbon steel |
Carbon steel |
Carbon steel+Zn |
Carbon steel+Zn |
Carbon steel+Zn |
Carbon stsel+Zn |
Carbon steel+Zn |
|
Seat Face |
lacri |
HF |
HF |
NA |
NA |
NA |
NA |
NA |
*1 |
PN > 600 class sealing face will be HF |
||||||||
NA |
Integral with vessel. |
Main Outline Dimensions & Weight Class 150Lb
NPS |
2 |
2.5 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
in |
DN |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
450 |
500 |
600 |
mm |
L |
60 |
67 |
73 |
73 |
98 |
127 |
146 |
181 |
184 |
191 |
203 |
219 |
222 |
mm |
D |
103 |
122 |
135 |
173 |
220 |
277 |
337 |
407 |
448 |
512 |
547 |
604 |
715 |
mm |
d |
51 |
65 |
80 |
102 |
152 |
203 |
254 |
305 |
350 |
400 |
450 |
500 |
600 |
mm |
D1 |
56 |
73 |
88 |
108 |
160 |
210 |
266 |
310 |
355 |
405 |
455 |
505 |
605 |
kg |
Weight (kg) |
2 |
3 |
4 |
6 |
13 |
25 |
39 |
54 |
80 |
117 |
138 |
163 |
331 |
kg |
Main Outline Dimensions & Weight Class 300Lb
NPS |
2 |
2.5 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
24 |
in |
DN |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
460 |
500 |
600 |
mm |
L |
60 |
67 |
73 |
73 |
98 |
127 |
146 |
181 |
222 |
232 |
264 |
292 |
318 |
mm |
D |
110 |
128 |
147 |
179 |
249 |
305 |
359 |
420 |
483 |
537 |
594 |
652 |
772 |
mm |
d |
51 |
65 |
80 |
102 |
152 |
8.25 |
254 |
305 |
350 |
400 |
450 |
500 |
600 |
mm |
D1 |
58 |
73 |
88 |
108 |
160 |
210 |
266 |
310 |
355 |
405 |
455 |
505 |
608 |
kg |
Weight (kg) |
3 |
4 |
6 |
8 |
18 |
31 |
51 |
77 |
117 |
190 |
200 |
265 |
410 |
kg |
Main Outline Dimensions & Weight Class 600Lb
NPS |
2 |
2.5 |
3 |
4 |
6 |
8 |
10 |
12 |
14 |
16 |
in |
DN |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
mm |
L |
60 |
67 |
73 |
79 |
137 |
165 |
213 |
229 |
273 |
305 |
mm |
D |
110 |
128 |
147 |
191 |
264 |
318 |
398 |
455 |
490 |
562 |
mm |
d |
51 |
65 |
80 |
102 |
152 |
200 |
250 |
305 |
337 |
387 |
mm |
D1 |
58 |
73 |
88 |
108 |
162 |
212 |
266 |
312 |
355 |
400 |
mm |
Weight (kg) |
4 |
5 |
8 |
11 |
26 |
55 |
95 |
140 |
223 |
360 |
kg |
Main Outline Dimensions & Weight Class 900Lb
NPS |
2 |
2.5 |
3 |
4 |
6 |
8 |
10 |
12 |
in |
DN |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
mm |
L |
70 |
83 |
83 |
102 |
159 |
206 |
241 |
292 |
mm |
D |
140 |
162 |
165 |
204 |
286 |
356 |
432 |
495 |
mm |
d |
51 |
65 |
80 |
102 |
152 |
200 |
250 |
305 |
mm |
D1 |
58 |
73 |
88 |
108 |
162 |
212 |
266 |
312 |
mm |
Weight (kg) |
8 |
11 |
14 |
20 |
42 |
84 |
145 |
220 |
kg |