Low-pressure swing-check valves
The equipment is a protective pipeline fitting. It is operated on pipelines in the turbine building of a nuclear power plant with a VVER-type reactor.
The products are designed to prevent back flow of low pressure working medium in NPP systems. The shutters are closed automatically due to the force of the flow of the working medium, which has changed the direction of movement to the opposite.
General characteristics
Low pressure butterfly valves are manufactured according to TU 3742-006-83789628-2018 in accordance with the classification 3CIIIv, 3CIIIc according to NP-068-05.
|
Nominal diameter
| DN 150-00 mm |
|
Operating pressure
| PN 2,5-4,0 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
| 300℃ |
|
Direction of supply of the working medium
| Unilateral |
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Installation position of the valve on the pipeline
| Vertical, horizontal |
|
Deviation from the installation position of the shutter from the horizontal or vertical plane
| ±3° |
