Duplex Dual Plate Check Valve
Body: Duplex Stainless Steel, Alloy Steel, Super Duplex, Inconel, Incoloy, Titanium
Disc: Duplex Stainless Steel, Alloy Steel, Super Duplex, Inconel, Incoloy, Titanium
Seat: Metal Seated, BUNA, EPDM, VITON
Nominal Size: 2″ to 24″
Nominal Pressure: PN16, PN10, Class150 to Class600
End Connection: Lugged
Design and Manufacture Standard: API 594
End Dimension: ASME B16.5, ANSI B16.10, JIS B2220
Face to Face Dimension: EN558-1, API 594, ISO 5752, ANSI B16.10
Dimensions
NPS
in
2
21/2
3
4
5
6
8
10
12
14
16
18
20
24
150Lb
L
mm
60
67
73
73
86
98
127
146
181
184
191
203
219
222
D
mm
103
122
135
173
196
222
279
339
409
450
514
549
606
717
D1
mm
120.5
139.5
152.5
190.5
216
241.5
298.5
362
432
476
540
578
635
749.5
D2
mm
92
105
127
157
186
216
270
324
381
413
470
533
584
692
n-Фd
mm
4-19
4-19
4-19
8-19
8-22
8-22
8-22
12-25
12-25
12-29
16-29
16-32
20-32
20-35
300Lb
L
mm
60
67
73
73
86
98
127
146
181
222
232
–
–
–
D
mm
110
128
148
180
215
250
307
361
422
485
539
–
–
–
D1
mm
127
149
168.5
200
235
270
330
387.5
451
514.5
571.5
–
–
–
D2
mm
92
105
127
157
186
216
270
324
381
413
470
–
–
–
n-Фd
mm
8-19
8-22
8-22
8-22
8-22
12-22
12-25
16-29
16-32
20-32
20-35
–
–
–
600Lb
L
mm
60
67
73
79
105
137
165
213
229
273
305
–
–
–
D
mm
110
129
148
192
240
265
319
399
456
489
562
–
–
–
D1
mm
127
149
168.5
216
267
292
349
432
489
527
603
–
–
–
D2
mm
92
105
127
157
186
216
270
324
381
413
470
–
–
–
n-Фd
mm
8-19
8-22
8-22
8-25
8-29
12-29
12-32
16-35
20-35
20-38
20-41
–
–
–
