32
SEMPELL
MODEL PSRV - PRESSURIZER SAFETY RELIEF VALVES
TYPE VS99 PILOT OPERATED
BLEED AND FEED VALVE WITH SOLENOID
The VCA solenoid valve is used solely to actuate the VS99 pressurizer safety relief valve. In de-energized state, it is always closed. Because the disc
is always pressed against the seat from below by a small spring and this is supported by system pressure, there is no pressure relief. Thus there is a
very tight seal at the seat.
TYPE VCA
Design
Solenoid valve energized open principle with
integrated isolation valve in one forged body
design
Reference
PWR Germany
PWR (VVER)
Size / DN
1" / 25 mm
Class / PN
class 1500 / PN 250
Body material
1.4553 / 1.4541
Qualification
Together with VS99
Содержание Sempell PSRV VS99
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