Crane Stockham Duo-Chek carbon steel wafer type, dual plate check valve, according API 594. Metal seated, suitable for mounting between ASME B16.5 RF Class 150 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
105
60
49
3
15,8
75
3
80
137
73
74
6
14,4
191
4
100
175
73
97
8
15,1
377
6
150
222
98
146
16
9,6
821
8
200
279
127
194
32
13,6
1590
10
250
340
146
243
48
12,4
2920
12
300
410
181
289
78
11,7
4470
Opening pressure in horizontal pipe
Other sizes on request
-29/38 °C
50 °C
100 °C
150 °C
200 °C
250 °C
300 °C
325 °C
345 °C
19,8
19,5
17,7
15,8
13,8
12,1
10,2
9,3
8,6
[bar]
ASTM A352 LCC is not to be used above 345°C
Check mentioned values and additional remarks with ASME B16.34 (latest issue)
