Crane Stockham Duo-Chekstainless steel wafer type, dual plate check valve, according API 594. Metal seated, suitable for mounting between ASME B16.5 RF Class 300 flanges. Tested according API 598. Materials comply with NACE MR-01-75. EN 10204-3.1 test and material certificate is available. This check valve is characterized by the compact, lightweight and balanced disc design, that stands for a fool proof operation, an efficient flow characteristic and low installation costs. The independent operating, long springs ensure a long life span end a "non-slam performance”. Because of the “retainerless” design there are no body penetrations, so fugitive emission to the atmosphere is not possible and the valve is inherently fire-safe. This makes the valve suitable for heavier, critical applications. Applications On- and offshore installations in (petro-)chemicalandoil & gas industry.Clean gasses and fluids, to prevent backflow and protections of pumps and compressors.
Anwendung
Empfohlen in: Chemie, Petrochemie und Raffinerien
Tabellen
"
DN
A
B
C
Weight
Opening pressure
Cv
mm
mm
mm
mm
[kg]
[mbar]
2
50
111
60
49
3
15,8
75
3
80
149
73
74
7
14,4
191
4
100
181
73
97
8
15,1
377
6
150
251
98
122
20
9,6
821
8
200
308
127
194
37
13,6
1590
10
250
362
146
243
57
12,4
2920
12
300
422
12
289
91
11,7
4470
Opening pressure in horizontal pipe
Other sizes on request
-29/38 °C
100 °C
150 °C
200 °C
250 °C
300 °C
350 °C
375 °C
400 °C
425 °C
450 °C
475 °C
500 °C
49.6
42.2
38.5
35.7
33.4
31.6
30.3
29.9
29.4
29.1
28.8
28.7
28.2
[bar]
Check mentioned values and additional remarks with ASME B16.34 (latest issue)
