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 600 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
54
3
80
149
73
74
7
14,4
140
4
100
194
79
97
12
15,1
271
6
150
267
137
146
36
9,6
725
8
200
321
165
194
61
13,6
1509
10
250
400
213
243
108
12,4
2640
12
300
457
229
289
151
11,7
4075
Opening pressure in horizontal pipe
Other sizes on request
-29/38 °C
50 °C
100 °C
150 °C
200 °C
250 °C
300 °C
345 °C
103.4
103.4
103
100.3
97.2
92.7
85.7
80
[bar]
ASTM A352 LCC is not to be used above 345°C
Check mentioned values and additional remarks with ASME B16.34 (latest issue)
