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Kosmonavtov Pr., h. 6э

Altai Region, Barnaul

Barnaul
Boiler Plant

21с-225-3-Э

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Production according to TR 3740-002-15365247-2004

Pipeline connection: welded connection.
Installation position: on horizontal and vertical pipeline sections.
Climatic version: У, УХЛ, ХЛ, Т according to GOST 15150-69.
Placement category: 2, 3 according to GOST 15150-69.
The valve control is carried out from the actuator of single-turn electric flanged
actuator type (МЭОФ).

Specifications
H, mm: 245
D, mm: 230
D1, mm: 285
L, mm: 650
DN, mm Рр, MPa Tmax of the Medium, ºC Body Material, Steel Working Medium Max. Pressure Differential, MPa TQ, N•m, maximum torque at spindle plug N, kW t хода, с. Weight without Electric Actuator, kg Full Weight, kg
225 9,8 540 15Х1М1Ф пар 217 1600 0,3 25 958 992
DN - Nominal Diameter
PN - Nominal Pressure
P - Pressure
Tmax - Maximum Design Temperature 
Mкр - Spindle Torque
t - Response time
μ - Fluid Flow Coefficient
h - Valve Stroke
Kv -
Throughput Capability
F - Seat Area
ζ - Resistance Coefficient

The pressure-compensated control disc valves of type 21с are intended for the control of the feed water and steam flow.
They are installed in the power centers of steam generators, PRDS and FRPRDS.
The valves are used as all-mode control bodies.

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