Valves the preventive are used for automatic defence of equipment and pipelines of the thermal electric stations (CHP, TEC, SDES), transporting water, steam, from the impermissible increase of pressure by means of upcast of surplus of working environment.
Management: lever and servodrive.
Sealing surface is surfacing from corrosive proof steel.
Direction of environment serve - on a corps pointer.
Tacking of valves to the pipeline - under welding on, flanged, threaded-end.
Adjusting position - on the horizontal areas of pipelines in position stem upwards.
Climatic execution - U3 for GOST 15150.
| Denotations | Analog | DN, mm | PN, MPa | t° C | Environment | L, mm | H, mm | Weight, kg |
|---|---|---|---|---|---|---|---|---|
| PV2.1.2.1-400/600-0,325 | 788-400/600-0-01 | 400/600 | 0,25 | 127 | пар | 1243 | 450 | 1023 |
| PV2.1.2.1-400/600-0,35 | 788-400/600-0-02 | 400/600 | 0,35 | 139 | пар | 2243 | 450 | 1103 |
| PV2.1.2.1-400/600-0,35 | 788-400/600-0-03 | 400/600 | 0,45 | 148 | пар | 2243 | 450 | 1183 |