Pressure, Rp
up to 20.0 mpa (200 kgf/cm²)
Operating medium temperature
up to 335 °C
Housing material
08CR18NI10T
Operating medium
i circuit coolant, makeup water, trap water, salt concentrate, oil, nitrogen, steam, steam generator feed water, steam generator blowdown water, i circuit gas blowdowns, feed water, condensate, cooling water for the drying circuit, radioactive
Pipeline connection
Welded
Permissible leakage in the gate, cm³/min
dn 25–15; dn 32–18; dn 50–30;dn 80–70; dn 100–120; dn 150–150;
Direction of medium flow
on and under the spool
Valve control
zt96546 - from pneumatic actuator of normally-open (NO) action with pneumatic valve t055.077mzt96547 - from pneumatic actuator of normally-closed (NC) action
Method of signaling
local and remote
Control medium in pneumatic actuators
air with temperature from -10 to +60 °C
Control air pressure in the pneumatic actuator Rupr
4.5 mpa (45 kgf/cm²), pressure increase up to 5.5 mpa (55 kgf/cm²) is allowed. in case of emergency mode "big leak" with temperature increase up to 150 °C the air pressure in the closed volume is increased up to 8 mpa (80 kgf/cm²).
Control air pressure drop, max.
0.01 mpa/h (0.1 kgf/cm2/h)
Control air flow rate for one actuation, not more, m3
zt96546 - 0.04 ; zt96547 - 0.01 to 0.05
Contamination class of control air
not higher than 7 according to gost 17433
Opening/closing time
No more than 10 s
Media flow direction
on and under the spool
Classification designation of the valve
2biia, 2biiv per np-068-05
Seismic resistance category
i by np-031-01