Alloy 20 Swing Check Valve
Design and Manufacture: ANSI B16.34, API 6D, DIN 3840, BS EN 1868
Face to Face Dimensions: ANSI B16.10, API 6D, DIN3202, BS EN558-1
Flange End Dimensions: ANSI B16.5, DIN 2543, BS EN 1092-1
Buttweld End Dimensions: ANSI B16.25
Test and Inspection: API598, API6D, DIN3230, BS EN 12569
Body: Alloy Steel, Super Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel, WC6, WC9,
C5, C12, LCB, CF3M
Disc: Alloy Steel, Duplex Stainless Steel, Super Duplex Stainless Steel, Alloy 20, CN7M, Hastelloy, Carbon Steel,
WC6, WC9, ?C5, C12, LCB, CF3M
Trim: SS304, SS316, SS304L, SS316L, 13%Cr.Steel, Stellite, Hastelloy, Alloy 20, Duplex Stainless Steel, Super
Duplex Stainless Steel
Gland Packing: Graphite, PTFE
Nominal Size: DN40 to DN600
Nominal Pressure: PN16 to PN63, Class150 to Class300
End Connections: Flanged, Socketweld, Buttweld
Operations: Handwheel Operated, Electric Actuated, Pneumatic Actuated
Dimensions Unit: mm
Class150
DN
d
L
d1
d2
D
b
n-?d
H
50
51
203
92
120
152
16
4-?19
132
65
64
216
105
139
178
18
4-?19
147
80
76
241
127
152
190
19
4-?19
176
100
102
292
157
190
229
24
8-?19
198
125
127
330
186
216
254
24
8-?22
255
150
152
356
216
241
279
26
8-?22
320
200
203
495
270
298
343
29
8-?22
380
250
254
622
324
362
406
31
12-?25
440
300
305
699
381
432
483
32
12-?25
480
350
337
787
413
476
533
35
12-?29
530
400
387
864
470
540
597
37
16-?29
580
450
438
978
533
578
635
40
16-?32
618
500
489
978
584
635
699
43
20-?32
657
600
591
1295
692
749
813
48
20-?35
760
