Products
Fluid flow valve
- Control valves
- Ball Valves
- Butterfly Valves
- Gate valves
- Check valves
- Globe valves
- Specialty Valves
- Actuator Series
0.3-0.5 seconds fast shut-off (fast shut-off butterfly valve)
0.3-0.5 seconds fast shut-off (fast shut-off butterfly valve)
Main Characteristics of 0.3-0.5 Second Fast Closing Valve：
0.3-0.5 second fast shut-off valve, also known as Fast-cut valve, is widely used in the blast furnace gas network system of metallurgical industry to prevent gas tempering in the pipe; in order to prevent the sudden drop of pressure in the steam turbine when the steam turbine load rejection occurs in the power industry, the steam in the exhaust pipe and each heater is poured into the steam turbine, which causes the turbine blades to be broken and broken. The vicious accident of damaging turbogenerator is used as emergency shut-off valve here. When dangerous conditions occur in the system, emergency shut-off can be implemented in 0.3-0.5 seconds to achieve reliable cut-off of the pipeline. Effectively prevent steam and condensate backfilling at the tail of steam turbine and protect the safety of steam turbine unit.
Functional Characteristics of 0.3-second Fast Closing Valve：
1. Fast shutdown time can reach 0.3-O.5 seconds. Emergency shutdown is safe and reliable.
2. Tri-eccentric metal seal structure, easy to open and close, zero leakage seal.
3. Double eccentricity soft sealing structure is optional for room temperature medium, which has low cost and reliable sealing.
4. Buffer at the end of closing valve to effectively avoid valve inertia hit.
5, 0.5 seconds fast shut-off valve can be realized by spring, or by accumulator. The two types of quick shut-off are similar, and are equally safe and reliable.
Functional Characteristics of 0.5-second Fast Closing Valve：
1. The 0.5 second fast shut-off valve is mainly composed of valve, hydraulic station, fast shut-off actuator, PLC intelligent electronic control box and special travel feedback device.
2. Finishing gear rack hydraulic actuator, compact structure, smooth operation, safe and reliable;
3. Intelligent electrical control system based on PLC has high degree of automation, remote and local control system.
4. Using internationally renowned brand automation components, the product has superior performance and reliable quality.
The normal power source of 5 and 0.5 seconds quick shut-off valves is usually provided by matching hydraulic pumping stations, and also comes from the main engine hydraulic stations of steam turbines.
6. The power supply of the system is 380V, and the control power supply is AC220V, DC220V, DC110V and other power levels.
7, 0.5 seconds emergency quick shut-off valve uses three eccentric multi-layer metal hard sealing butterfly valve, high temperature resistance, flexible opening and closing, easy, reliable sealing. Special requirements.
Email