Product name: BKH imported quick-open high-pressure emergency shut-off valve
Material: Stainless steel
Product introductionThe imported quick-opening high-pressure emergency shut-off valve model sold by Jiangsu Zhongli is BKH, the nominal diameter is DN6-DN50, and the pressure is 16MPa-42MPa. It is a type of actuator in the automation system. It consists of a multi-spring pneumatic diaphragm actuator or a floating piston actuator and a regulating valve. It receives signals from regulating instruments and controls the cut-off, connection or switching of fluid in the process pipeline.
进口快开式高压紧急切断阀 型号为BKH，公称口径是DN6-DN50,压力为16MPa-42MPa。 The imported quick-opening high-pressure emergency shut-off valve model sold by Jiangsu Zhongli is BKH, the nominal diameter is DN6-DN50, and the pressure is 16MPa-42MPa. ，由多弹簧气动薄膜执行机构或浮动式活塞执行机构与调节阀组成，接收调节仪表的信号，控制工艺管道内流体的切断、接通或切换。 It is a type of actuator in the automation system. It consists of a multi-spring pneumatic diaphragm actuator or a floating piston actuator and a regulating valve. It receives signals from regulating instruments and controls the cut-off, connection or switching of fluid in the process pipeline. The air source of the imported fast-opening high-pressure emergency shut-off valve requires filtered compressed air, and the medium flowing through the valve body should be a liquid and gas without impurities and particles. The coil spring inside the motor electric actuator of the imported quick opening high-pressure emergency shut-off valve transmits the torque force to the coil spring when the power is turned on. When the power is cut off, the coil spring releases the torque force stored therein, which drives the valve to close or open quickly. It has the advantage of closing quickly, and the closing time is only 1-2S.
I. Main parameters of imported quick-opening high-pressure emergency shut-off valve:
1. Product Brand: Other
Product model: BKH
3. Nominal caliber: DN6-DN50
4. Pressure: 16MPa-42MPa
5. Material: stainless steel
： Advantages of imported quick-opening high-pressure emergency shut-off valve :
1. There are three types of valve body structure: single seat, sleeve, and double seat (two-position and three-way). There are two types of seals: packing seal and bellows seal. The flow characteristic is quick opening.
2. The multi-spring actuator and the adjustment mechanism are connected by three columns, the overall height can be reduced by about 30%, and the weight can be reduced by about 30%;
3. The valve body of the imported fast-opening high-pressure emergency shut-off valve is designed into a low-flow resistance flow channel of equal cross-section according to the principle of fluid mechanics, and the rated flow coefficient is increased by 30%
4. There are two types of sealing parts: tight type and soft seal. The tight type is made of hard alloy and the soft seal type is made of soft material. It has excellent sealing performance when closed.
5. Balanced internal parts of the valve increase the allowable differential pressure of the imported quick-open high-pressure emergency shut-off valve;
6. The bellows seal type seals the moving valve stem, blocking the possibility of medium leakage;
7. Piston-type actuator with large operating force and large pressure difference.
Third, the main application of imported fast-opening high-pressure emergency shut-off valve:
1. Connected with flammable gas leakage monitoring instrument. When the instrument detects flammable gas leakage, it will automatically close the main gas supply valve quickly and cut off the gas supply to prevent the occurrence of vicious accidents in time.
2. It is connected with the limit temperature (pressure) safety controller of the thermal equipment. When the temperature (pressure) of the detection point in the device exceeds the set limit value, the gas supply valve is automatically closed quickly and the fuel supply is stopped.
3. It is connected to the central fire alarm system of high-rise buildings. When a fire occurs in the building, the gas supply in the building is automatically cut off to prevent the occurrence of a gas explosion.
4. A ZCR gas emergency shut-off valve is installed in the city or factory's gas supply network, which can be centrally controlled in the central control room, and remotely remotely shut down the pipeline gas supply at the scene of the accident.
Fourth, the working principle of the imported quick-open high-pressure emergency shut-off valve:
1. The valve is normally open in daily work, and the solenoid valve coil is in a power-off state without consuming power.
2. When an accident occurs, the valve coil is energized instantaneously, triggering the valve to close quickly and enter the self-locking state. At this time, even if the power is removed, the valve is still locked and will not open again automatically.
3. The valve adopts a pilot-operated disc, which is easy to open. Even if the pressure reaches 6bar, it is very easy to open. The diameter is greater than DN125. The lever handle is used to make the valve switch labor-saving and fast.
4. When the staff has dealt with the accident and manually reopened the valve, the gas supply will be restored.
V. Instructions for ordering imported quick-opening high-pressure emergency shut-off valves:
1. Nominal diameter, nominal pressure, working temperature and connection form of the valve.
进口快开式高压紧急切断阀 阀门管道中实际承受的压力，阀瓣开启瞬间前后承受的压差。 2. The actual pressure in the pipeline of the imported quick-opening high-pressure emergency shut-off valve and the pressure difference before and after the valve flap is opened.
3. Indicate the pipeline medium, and what are the specific requirements for the material of the valve body and various internal parts.
4. Specific requirements for installation dimensions.
5. Special specifications require negotiation and settlement.