进口溢流阀产品详情-德国洛克

 

一、进口溢流阀技术参数：

1、公称通径：DN15-DN80

2、工作压力： 0.6~40.0Mpa

3、适用介质：天然气、水、蒸汽、液化气、煤气、氢气、氮气、氧气等

4、连接方式：内螺纹、外螺纹、法兰、焊接、对焊、承插焊、卡套、卡箍。

5、适用温度：-196℃-600℃

6、阀体材质：铸铁、铸钢、不锈钢

7、阀芯材质：铸钢、不锈钢、合金钢、硬质合金钢、高温钢等

8、标准：DIN,SMS,3A,ISO,IDF

9、应用：乳制品,食品,饮料,啤酒,制药等

 

二、进口溢流阀工作原理：

一种液压压力控制阀，在液压设备中主要起定压溢流作用，稳压，系统卸荷和安全保护作用。

定压溢流作用：在定量泵节流调节系统中，定量泵提供的是恒定流量。当系统压力增大时，会使流量需求减小。此时溢流阀开启，使多余流量溢回油箱，保证溢流阀进口压力，即泵出口压力恒定（阀口常随压力波动开启）。

稳压作用：溢流阀串联在回油路上，溢流阀产生背压，运动部件平稳性增加。

系统卸荷作用：在溢流阀的遥控口串接溢小流量的电磁阀，当电磁铁通电时，溢流阀的遥控口通油箱，此时液压泵卸荷。溢流阀此时作为卸荷阀使用。

安全保护作用：系统正常工作时，阀门关闭。只有负载超过规定的极限（系统压力超过调定压力）时开启溢流，进行过载保护，使系统压力不再增加（通常使溢流阀的调定压力比系统*工作压力高10%～20%）。

实际应用中一般有：作卸荷阀用，作远程调压阀，作高低压多级控制阀，作顺序阀，用于产生背压（串在回油路上）。

溢流阀一般有两种结构：1、直动型溢流阀 。2、先导式溢流阀。

对溢流阀的主要要求：调压范围大，调压偏差小，压力振摆小，动作灵敏，过载能力大，噪声小。

二、 Working principle of inlet relief valve:
The utility model relates to a hydraulic pressure control valve, which mainly plays the functions of constant pressure overflow, stable pressure, system unloading and safety protection in hydraulic equipment.
Constant pressure overflow function: in the throttling regulation system of the quantitative pump, the quantitative pump provides constant flow. When the system pressure increases, the flow demand will decrease. At this time, the relief valve is opened to make the excess flow overflow back to the oil tank and ensure the inlet pressure of the relief valve, that is, the pump outlet pressure is constant (the valve port is often opened with pressure fluctuation).
Pressure stabilizing function: the relief valve is connected in series on the oil return road, the relief valve produces back pressure, and the stability of the moving parts increases.
Unloading function of the system: a small flow overflow solenoid valve is connected in series with the remote control port of the overflow valve. When the solenoid is energized, the remote control port of the overflow valve is connected to the oil tank, and the hydraulic pump is unloaded. The relief valve is now used as an unloading valve.
Safety protection function: when the system works normally, the valve is closed. Only when the load exceeds the specified limit (the system pressure exceeds the set pressure), the overflow will be opened for overload protection, so that the system pressure will not increase (usually the set pressure of the overflow valve is 10% - 20% higher than the maximum working pressure of the system).
In practical application, it is generally used as unloading valve, remote pressure regulating valve, high and low pressure multi-stage control valve and sequence valve to generate back pressure (connected in oil return circuit).
Relief valve generally has two structures: 1, direct acting relief valve. 2. Pilot operated relief valve.
The main requirements for relief valve are: large pressure regulating range, small pressure regulating deviation, small pressure swing, sensitive action, large overload capacity and low noise.
 

三、进口溢流阀描述：

德国《DE LOCKE》洛克进口溢流阀，一种液压压力控制阀。在液压设备中主要起定压溢流作用和安全保护作用。定压溢流作用：在定量泵节流调节系统中，定量泵提供的是恒定流量。当系统压力增大时，会使流量需求减小。此时溢流阀开启，使多余流量溢回油箱，保证溢流阀进口压力，即泵出口压力恒定。

三、 Description of inlet relief valve:
German "de Locke" imported relief valve, a hydraulic pressure control valve. In the hydraulic equipment, it mainly plays the role of constant pressure overflow and safety protection. Constant pressure overflow function: in the throttling regulation system of the quantitative pump, the quantitative pump provides constant flow. When the system pressure increases, the flow demand will decrease. At this time, the relief valve is opened to make the excess flow overflow back to the oil tank and ensure the inlet pressure of the relief valve, that is, the pump outlet pressure is constant.