What is a 0.3 second fast closing valve

1、 Liquid controlled quick closing butterfly valve product introduction:
0.3-second quick closing valve, also known as 0.5-second electro-hydraulic linkage quick closing valve, is mainly used in the extraction pipeline of steam turbines
In order to prevent a sudden decrease in pressure inside the steam turbine unit during load shedding, steam is poured into the exhaust pipe and various heaters
The malignant accident caused by the breaking of turbine blades and damage to the turbine generator inside the engine is used as an emergency shut-off valve here.
In the event of a dangerous operating condition in the system, emergency valve closure can be implemented within 0.5 seconds to achieve reliable shut-off of the pipeline. Effective prevention
Stop the backflow of steam and condensate at the tail of the steam turbine to protect the safety of the steam turbine unit; Also applied to the residual pressure of blast furnace gas in the metallurgical industry
High safety level systems such as power generation equipment (TRT) prevent gas backfire inside the pipes; And the medium includes seawater, sewage, and flue gas
Emergency shut-off valves are used on industrial pipelines such as air and oil pipelines; Zhongqi Fluid's 0.5 second quick closing valve is also widely used in media applications
Used as emergency shut-off valves on industrial pipelines such as seawater, sewage, flue gas, air, and oil products.
2、 Technical parameters of hydraulic controlled quick closing butterfly valve
Product model: KGD743H, QYKD741H, KD741H or other
Nominal diameter: DN100~DN2000
Nominal pressure: PN2.5~PN160
Applicable media: steam, blast furnace gas, water, flue gas, air, oil products, etc
Medium temperature: ≤ 600 ℃
Valve opening time: 3-60 seconds (adjustable)
Valve closing time: 3-60 seconds (adjustable)
Quick closing time: 0.2~0.8 seconds or 0.5-2 seconds (TRT system)
Power supply: AC380V
Control power supply: AC220V, DC220V, DC110V or DC24V
Remote control: valve opening, valve closing, stopping, swimming, fast closing
Remote signal: passive switch signal, 4-20mA analog valve position feedback signal
3、 Features of hydraulic control quick closing butterfly valve function
1. The closing time is less than 0.5 seconds;
2. Adjustable range of 90 ° ± 10 ° angle to ensure reliable valve closure or opening;
3. Normal opening and closing functions;
4. The accumulator stores energy and provides driving energy, making the power of the oil pump motor unit small, energy consumption low, energy-saving and environmentally friendly;
5. Equipped with buffering and damping devices to prevent impact;
6. Swimming function to prevent valve blockage;
7. Integrated design, compact structure, easy operation, convenient maintenance, high degree of intelligence;
8. It can achieve adjustment, cutoff, and quick closing functions as needed, with a wide range of applications;
9. The hydraulic station and valve body are installed separately, and the hydraulic system is less affected by pipeline vibration and high temperature environment, resulting in a long service life of the product;
10. Optional functions: adjustment, explosion-proof, 4-20mA analog feedback, quick opening, or other special requirements.