PIETRO FIORENTINI HBC 975, Manual

Page: 32 / 156

32
HBC 975
EN
Use, maintenance and warning manual
SLAM-SHUT VALVE | DESCRIPTION AND OPERATION | REV. 00
4.4 - TECHNICAL FEATURES/PERFORMANCE
Slam-shut valve HBC 975 is suitable for medium and high pressure.
HBC 975 is a “top entry” valve, therefore it allows easy maintenance without removing it from the line.
It is also equipped with a button for local closing.
The main specifications of this equipment are:
Technical features
Maximum allowable pressure Up to 100 bar
Inlet gas temperature range
-10 °C + 60 °C (class 1)
-20 °C + 60 °C (class 2)
Ambient temperature range
-20 °C + 60 °C
Inlet pressure range (bpu)
1 - 100 bar
Accuracy class (AG) up to 1
Max. pressure tripping range (Wdso) OPSO 0.2 - 90 bar
Min. pressure tripping range (Wdsu) UPSO 0.2 - 90 bar
Tab. 4.16.
Cg, Kg and K1 coefficients
Nominal diameter [mm] 100 150 200 250 300
Size [inches] 4” 6” 8” 10” 12”
Coefficient Cg 8000 16607 25933 36525 55000
Kg coefficient 8416 17471 27282 38425 57860
Coefficient K1 106.78 106.78 106.78 106.78 106.78
Tab. 4.17.