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Kosmonavtov Pr., h. 6э

Altai Region, Barnaul

Barnaul
Boiler Plant

1438-20-Р-04

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Production according to TR 2913-001-15365247-2004

Installation place: as a rule, the valves are installed on the cooling water injection
pipelines in DS, PRDS, FRPRDS and industrial pipelines.
Installation requirements: the valves are designed for outdoor installation and in
closed premises with the ambient temperature up to +70 С.
The valves equipped with built-in actuators shall be only installed on horizontal
pipeline sections with the actuator position upwards.
Pipeline connection: welded connection.
Climatic version: У, УХЛ, ХЛ, Т according to GOST 15150-69.
Placement category: 1, 2, 3 according to GOST 15150-69.
Depending on the lifting height of the valve needle, the throughput capability is
shown in the diagrams.

Specifications
D1, mm: 45
H, mm: 502
h, mm: 115
D, mm: 32
d1, mm: 28
d, mm: 20
DN, mm Рр, MPa Tmax of the Medium, ºC Body Material, Steel Working Medium Operating Stroke, mm Max. Kv, m³/h Max. Pressure Differential, MPa F, cm² TQ, N•m, maximum torque at spindle plug Designation of the electric drive N, kW t хода, с. h1, mm Weight without Electric Actuator, kg Full Weight, kg
20 37,3 280 20 Вода 29 1,4 4 0,3 1,9кН** MЭО-630/25-0,25У-92К 0,2 8 70 15,9 90
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 control needle valves are used as fluid flow regulators.
The provision of smooth control within the limits of the rated throughput capability is achieved with the help of the valve needle form. The seat has reinforced hard-facing of increased hardness which is resistant erosive and corrosive wear.
They are not used as shutoff devices.

According to the actuator type of the working body and control method, the
control needle valves are divided into the following types:

  • Lever-operated control needle valves. The valve control is carried out on a
    remote basis (automatically) with actuators of single-turn electric actuator type
    (МЭО) through the lever. The allowed pressure differential on the valve shall not
    exceed 1 MPa.
  • Control needle valves. The valve control is carried out with a handwheel or an
    actuator with a current position sensor of electric multi-turn actuator types
    (ПЭМ) (ABS ZEIM Automation), SAR (AUMA) or linear pneumatic actuators
    FESTO, VALBIA, AIR Torque, ROTORK etc., chosen considering the working
    medium pressure and air pressure. The valves equipped with actuators shall be
    only installed on horizontal pipeline sections with the actuator position
    upwards.
  • Control angle valves. The valves are controlled with a built-in multi-turn electric
    actuator with a current position sensor of electric multi-turn actuator / electric
    multi-turn mechanism types (ПЭМ/МЭМ) (ABS ZEIM Automation), SAR (AUMA)
    etc. or linear pneumatic actuators of electric multi-turn actuator types (МЭП)
    (ABS ZEIM Automation), REGADA etc., chosen considering the working medium
    pressure.

According to GOST 356-80, the valves designed for the ultimate pressure allow
their application on operating parameters within the following range:
— at PN 100 MPa – from 10 MPa, 200 °С to 3,6 MPa, 455 °С;
— at PN 63 MPa – from 6,3 MPa, 200 °С to 2,3 MPa, 455 °С;
— at PN 25 MPa – from 25 MPa, 200 °С to 9 MPa, 455 °С.

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