1. Valve body; 2. Leverage; 3. Heavy hammer; 4. Rocker arm; 5. Travel switch; 6. Wall panel
7. Opening potentiometer; 8. Motor; 9. Oil pump; 10. Energy storage device; 11. Seismic pressure gauge
12. Low pressure switch; 13. High pressure switch; 14. Electromagnetic valve i 1 5, globe valve normally open
16. Flow control valve; 17. Overflow valve; 18. Manual pump; 1 9. The shut-off valve is normally closed
20. Electrical control box; 21. Quick closing regulating valve; 22. Speed and speed angle adjustment
23. Slowly close the regulating valve; 24. Oil cylinder
Adopting standards:
Grey cast iron flange: GB/T172416-1998;
Ductile iron flange: GB/T172416-1998
Steel flange: GBIT9113-2000;
Structural length: GB/T12221-1989;
Pressure test: GB/T13927-1992;

The S/B/D741X automatic pressure maintaining hydraulic control butterfly valve is a product that has been improved and perfected in terms of performance based on the introduction of foreign products. It can achieve pump valve linkage to maintain pressure without dropping the hammer, the butterfly plate does not shake, and the flow resistance is small according to the schedule; It has adjustable fast and slow closing stages, especially when there is a sudden power outage or pump shutdown due to an accident, the fast and slow closing stages of the valve are used to prevent water hammer hazards and protect the safety of the water pump and pipeline system.
The S/B/D741X automatic pressure maintaining hydraulic control butterfly valve is widely used in pipeline pump stations of large and medium-sized projects such as water plants, power plants, metallurgy, and irrigation.

S/B/D741X type

Main component materials of automatic pressure maintaining hydraulic butterfly valve

Outline and connection dimension diagram of heavy hammer automatic pressure holding locking type hydraulic control slow closing check butterfly valve DN ≥ 600

1. Valve body; 2. Oil cylinder; 3. Transmission bracket; 4. Lock the oil cylinder; 5. Rocker arm; 6. Heavy hammer; 7. Opening potentiometer; 8. Normally open shut-off valve; 9. Normally closed shut-off valve one; 1. Main solenoid valve 1. Locking solenoid valve; 12. Normally closed globe valve 2; 13. Motor; 14. Oil pump; 15. Energy storage device; 16. Manual pump; 17. Pressure gauge; 18. Pressure switch; 19. Flow control valve; 20. Overflow valve; 21. Electrical control box; 22. Travel switch; 23. Quick closing regulating valve; 24. Slowly close the regulating valve; 25. Speed and speed angle adjustment