The flanged safety valve (KPF-82) was developed by the Promhydropryvod design bureau. Its design incorporates genuine Bosch Rexroth components.
Technical specifications of the flanged safety valve (KPF-82):
| 1. Nominal bore, mm | 82 |
| 2. Inlet pressure, MPa: | |
| – nominal | 10 |
| – maximum | 12,5 |
| – minimum | 1,6 |
| 3. Pressure adjustment range, MPa | 1,5-12,5 |
| 4. Working fluid flow rate, L/min | |
| – nominal | 2250 |
| – maximum | 3500 |
| – minimum | 80 |
| 5. Supply voltage of the DC electromagnet, V | 24 |
| 6. Internal tightness (maximum internal leakage), L/min | 2,5 |
| 7. Maximum pressure rise above the set pressure during a sudden pressure surge, MPa | 6 |
| 8. Maximum unloading pressure, MPa | 12 |
| 9. Mass (excluding operating fluid), kg, not more than | 45 |
