High-pressure swing-check valves
Products belong to the type of protective pipeline fittings. Designed for operation as devices that prevent the back flow of the medium in nuclear power plant systems.
The products are designed to operate at elevated temperatures and pressures. When the direction of movement of the flow of the working medium is reversed, the check valve closes automatically.
General characteristics
High pressure butterfly valves are manufactured according to TU 3742-005-83789628-2012 in accordance with the classification according to NP-068-05 2BIIa, 2IIIa, 3CIIIa.
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Nominal diameter
| DN 50-500 mm |
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Operating pressure
| PN 8,6-20,0 MPa |
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Pipe connection type
| Welding |
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Tightness class
| V |
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Type of climatic modification
| UHL, M, TV, T |
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Working environment
| Water, steam, vapor-gas mixture |
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Operating environment temperature
| 250-300℃ |
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Direction of supply of the working medium
| Unilateral |
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Installation position of the valve on the pipeline in the horizontal plane
| Lid up, while the axis of the flap is in the horizontal plane and above the pipeline |
|
Deviation from the installation position of the shutter from the horizontal plane
| ±3° |
|
Installation in a vertical pipeline
| Allowed. Position - outlet up |
|
Deviation from the installation position of the shutter from the upper plane
| ±3° |
