： Product name :
| V230 self-operated pressure regulating valve |
： Product model :
| V230 type |
： Driving method :
： Connection form :
： Structure form :
| Thru |
： Sealing material :
： Pressure range :
MPa 1.6 MPa
： Nominal diameter :
-DN250 DN15 -DN250
： Common materials :
Cast steel, stainless steel
： Technical consultation :
是国内著名〖 V230型自力式压力调节阀 〗制造商，也是国内大型【 自力式调节阀 】生产商之一，公司自成立以来始终围绕客户的需求并持续创新，为广大的代理商和企业客户提供〖V230型自力式压力调节阀 〗解决方案，质量可靠，价格实惠，故畅销全国各地，欢迎新老客户来电，来函，我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ V230 self- operating pressure regulating valve ] and one of the large domestic [ self- operating regulating valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation. To provide the majority of agents and corporate customers with the "V230 self-operating pressure regulating valve" solution, reliable quality and affordable price, so it sells all over the country, welcome new and old customers to call, letter, we will provide you with the best service . 型自力式压力调节阀 产品结构： Product structure of V230 self-operated pressure regulating valve :
型自力式压力调节阀 为直接作用自力式压力调节阀，由阀体、阀芯部件、阀盖、顶盘、上、下膜盖、膜片、弹簧、调节螺母等零部件所组成。 V230 self- operating pressure regulating valve is a direct-acting self-operating pressure regulating valve, which is composed of valve body, valve core component, valve cover, top plate, upper and lower diaphragm cover, diaphragm, spring, adjusting nut and other components.
型自力式压力调节阀 工作原理： V230 self-operated pressure regulating valve works:
作阀后压力调节时的工作原理： (1) Working principle when adjusting the pressure after the valve:
P1 经过阀芯、阀座的节流后，变为阀后压力 P2 ， P2 经过导压管输入到执行器的下膜室内作用在顶盘上，产生的作用力与弹簧的反作用相平横，决定了阀芯、阀座相对位置，控制阀后压力。 The pre-valve pressure P1 of the process medium passes through the throttling of the valve core and the valve seat, and then becomes the post-valve pressure P2 . P2 is input to the lower diaphragm chamber of the actuator through the pressure guiding pipe, and acts on the top plate. The reaction of the valve is horizontal and horizontal, which determines the relative position of the valve core and the valve seat, and controls the pressure behind the valve. P2 作用在顶盘上的作用力也随之增加。 When the pressure behind the valve P2 acts on the top plate also increases. At this time, the force of the top plate is greater than the reaction force of the spring, so that the valve core is closed to the position of the valve seat until the force of the top plate is balanced with the reaction force of the spring. P2 降为设定值。 At this time, the flow area between the valve core and the valve seat is reduced, and the flow resistance is increased, so that P2 is reduced to the set value. P2 降低时，作用方向与上述相反，这就是阀后压力调节时的工作原理。 Similarly, when the pressure P2 behind the valve decreases, the action direction is opposite to the above, which is the working principle when the pressure behind the valve is adjusted.
P2 的设定值时，可调整调节螺母。 When the setting value of the pressure P2 behind the valve needs to be changed , the adjusting nut can be adjusted.
作用前压力调节时的工作原理： (2) Working principle when adjusting pressure before action:
P1 通过阀芯、阀座节流后变为阀后压力 P2 ，同时 P1 通过导压管输入到执行器的上膜室内作用在顶盘上，产生的作用力与弹簧的反作用力相平横，决定了阀芯、阀座的相对位置，控制阀前压力。 The pressure P1 of the process medium valve is reduced to the post-valve pressure P2 by throttling through the valve core and the valve seat . At the same time, P1 is input into the upper film chamber of the actuator through the pressure guiding pipe to act on the top plate, and the generated force reacts with the spring. The force level determines the relative positions of the valve core and the valve seat, and controls the pressure before the valve. P1 增加时， P1 作用在顶盘的作用力也随之增加。 When the pressure P1 in front of the valve increases, the force of P1 on the top plate also increases. At this time, the force on the top plate is greater than the reaction force of the spring, so that the valve core is moved away from the valve seat until the force of the top plate is balanced with the spring reaction force. P1 降为设定值。 At this time, the flow area between the valve core and the valve seat becomes larger, and the flow resistance becomes smaller, thereby reducing P1 to a set value. P1 降低时，作用力方向与上述相反，这就是阀前压力调节时的工作原理。 Similarly, when the pressure P1 before the valve decreases, the direction of the force is opposite to the above, which is the working principle when the pressure before the valve is adjusted.
P1 的设定值时，可调整调节螺母。 When the setting value of the pressure P1 before the valve needs to be changed , the adjusting nut can be adjusted.
作差压控制时的工作原理： (3) Working principle for differential pressure control:
△ P 的大小。 After the process medium is throttled through the valve, it enters the controlled equipment, and the differential pressure of the controlled equipment is introduced into the upper and lower membrane chambers of the valve, respectively, and generates thrust in the upper and lower membrane chambers, which is balanced with the spring reaction force to determine The relative position of the valve core and the valve seat is determined, and the relative position of the valve core and the valve seat determines the magnitude of the differential pressure value ΔP . When the controlled difference changes, the balance of force is broken, which drives the valve core to move. The valve's resistance coefficient is changed from the movement of the valve core, that is, the controlled differential pressure value is controlled to a set value. This is how the differential pressure control works.
When you need to change the differential pressure setting, you can adjust the adjusting nut.
V230 型自力式压力调节阀产品的型号、规格 Model and specifications of V230 self-operated pressure regulating valve
V230 型自力式压力调节阀主要技术参数和性能指标 Main technical parameters and performance indicators of V230 self-operated pressure regulating valve
V230 型自力式压力调节阀性能指标 Performance index of V230 self-operated pressure regulating valve
V230 型自力式压力调节阀 安装： V. Installation of V230 self-operated pressure regulating valve :
安装前注意事项 1 Precautions before installation
现场安全：安装压力阀的管道事先不应有压力，压力阀前后的切断阀应关闭。 1 Site safety: The pipeline where the pressure valve is installed should not be under pressure in advance, and the shutoff valves before and after the pressure valve should be closed. Before welding, appropriate fire prevention measures should be taken.
控制性能：配管系统的压力损失应与计算压力阀尺寸的所考虑的损失一致。 2 Control performance: The pressure loss of the piping system should be consistent with the loss considered in calculating the size of the pressure valve. ( 一般为 5D ～ 10D) ，以保证所需的控制性能。 Import and export should try to ensure a certain straight pipe section ( usually 5D ~ 10D) to ensure the required control performance.
安装位置：应有足够的空间，便于操作人员安装，调整压力阀，以及保证压力阀和附件的就地拆装和维护的可能性。 3 Installation position: There should be enough space for the operator to install, adjust the pressure valve, and ensure the possibility of disassembly and maintenance of the pressure valve and accessories in place.
过虑器：为保证压力阀的正常使用，安装时，应在压力阀前安装过滤器，并定期清洗。 4 filter: in order to ensure the normal use of the pressure valve, the filter should be installed in front of the pressure valve, and regularly cleaned. Adequate drainage and ventilation systems shall be provided in steam-filled buildings.
压力阀组：一般在工艺过程配管中均安装切断阀和旁路阀配成阀组，以适应设备连续操作的需要。 5 Pressure valve group: Generally, a shut-off valve and a bypass valve are installed in the process piping to form a valve group to meet the needs of continuous operation of the equipment. When maintenance and unexpected situations occur, isolate with a shut-off valve and adjust with a bypass valve. 5 布置方式。 Push the layout of Figure 5 below .
用于煤气、天燃气压力调节，在室内安装使用时，如果无漏气报警装置，应在执行器加接引流管通到室外并不得堵塞，以保证安全。 6 It is used for gas and natural gas pressure adjustment. If there is no air leakage alarm device when installed indoors, the drain pipe should be connected to the actuator and allowed to pass outdoors to ensure safety. 阀后压力调节，接在上膜盖接头上，阀前压力调节，接在下膜接头上 ) ( Pressure adjustment after the valve, connected to the upper film cover connector, pressure adjustment before the valve, connected to the lower film connector )
用于减压或泄压的压力阀，使用时不得将膜盖上的无接管的接头堵塞，否则压力阀无法工作。 7 pressure valve used for pressure reduction or pressure relief, do not block the non-pipe joint on the membrane cover when using, otherwise the pressure valve will not work.
V230 型自力式压力调节阀 实地安装 2 V230 self-operated pressure regulating valve field installation
安装人员首先应认识到压力阀是一种精密的仪表设备，不准碰撞、跌摔、以免损坏，影响产品性能。 1 The installer should first realize that the pressure valve is a precise instrument and equipment, and it is not allowed to collide or fall to avoid damage and affect the performance of the product.
在初次开工前和停工检修后应先冲洗配管系统，然后安装压力阀，并应保证管道内力不超过压力阀的极限值。 2 Flush the piping system before the initial start and after the shutdown and maintenance, then install the pressure valve, and ensure that the internal force of the pipeline does not exceed the limit value of the pressure valve.
主意务必按压力阀所示的介质流动方向 ( 阀体上的箭头 ) 安装压力阀。 3 Idea Be sure to install the pressure valve in the direction of flow of the medium ( arrow on the valve body ) shown by the pressure valve.
压力阀应该垂直倒立安装在管道上。 4 The pressure valve should be installed vertically on the pipeline. 5 所示，这样可以保证介质的温度不会传送到执行器上。 The actuator is down and the control valve is up, as shown in Figure 5 , so that the temperature of the medium will not be transmitted to the actuator. 80 ℃ 时，压力阀可以正立安装。 When the medium temperature is lower than 80 ℃ , the pressure valve can be installed upright. 80 ℃ 时，压力阀必须垂直倒立安装，即执行器向下安装。 When the medium temperature is higher than 80 ℃ , the pressure valve must be installed vertically, that is, the actuator is installed downward. A bracket should be added where the valve has a heavy weight or where there is vibration.
在压力阀前后安装压力表，以便设定调整时察看。 5 Install pressure gauges before and after the pressure valve so that you can see when setting and adjusting.