|
Lesokirzavodskaya 5 Barnaul, Russia, 656012 | |
| +7 (3852) 266-888 | |
| feedback |
|
Lesokirzavodskaya 5 Barnaul, Russia, 656012 | |
| +7 (3852) 266-888 | |
| feedback |
Pressure safety valve (PSV) DN 40000/60000 mm of series 788, manufactured with three different modifications is a direct acting safety device designed for installation in the reduced and desuperheated steam after pressure-reducing and desuperheating stations.
The valve is installed on the horizontal parts of the pipelines with stem upwards; in areas where maintenance is easy. The valve body is equipped with mounting legs for easy installation during construction.
Pressure safety valve operates in auto mode – the valve closes at nominal pipeline pressure. Gate actuates when the pressure in a package boiler increases above mount pressure and steam releases into atmosphere. With decreasing pressure in a pipeline, the force created by the load lever exceeds the force created by the pressure of the gate, the gate drops down, and the valve closes.
Valve body material – carbon steel.
Connection to the pipeline – flanged connection.
Manufacturing and shipping according to TS 3742-006-71228244-2008 standard.
| Product ID | DN, mm | Working medium | Рр, MPa | Тр, ˚С | Maximum steam discharge, t/h | Minimum passage area Fmin, sq.cm | Estimated discharge coefficient | Working stroke, mm | Body material | Weight, kg | Model |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 788-400/600-0-01 | 400/600 | steam | 0,25 | 127 | 35 | 452 | 0,5 | 100 | 20 | 1023 |  |
| 788-400/600-0-02 | 400/600 | steam | 0,35 | 139 | 45 | 452 | 0,5 | 100 | 20 | 1103 | |
| 788-400/600-0-03 | 400/600 | steam | 0,45 | 148 | 55 | 452 | 0,5 | 100 | 20 | 1183 | |