| 膜片压力表适用于测量具有一定腐蚀性、非凝固或非结晶的各种流体介质的压力或负压。
耐腐蚀性能取决于膜片材料。
结构原理
仪表由测量系统(包括法兰接头、波纹膜片)、传动指示机构(包括连杆、齿轮传动机构、指针和度盘)和外壳(包括表壳和罩圈)等组成。仪表外壳为防溅结构，具有较好的密性，故能保护其内部机构免受污秽浸入。
仪表的作用原理是基于弹性元件(测量系统上的膜片)变形。在被测介质的压力作用下，迫使膜片产生相应的弹性变形——位移，借助连杆组经传动机构的传动并予放大，由固定于齿轮上的指针逐将被测值在度盘上指示出来。
主要技术指标
精确度等级：2.5
使用环境温度：-40~+70℃；相对湿度不大于90％
温度影响：使用温度偏离20±5℃时，其温度附加误差不大于0.04％／℃
工作位置：垂直安装
外壳防护等级：IP64
· 标度范围、外形尺寸及重量
Diaphragm pressure gauges are suitable for measuring the pressure or negative pressure of various fluid media that have certain corrosivity, are non-solidifying, or non-crystallizing. The corrosion resistance depends on the diaphragm material.
Structural Principle
The instrument consists of a measuring system (including flange joint and corrugated diaphragm), a transmission and indicating mechanism (including connecting rod, gear transmission mechanism, pointer, and dial), and a case (including the meter housing and guard ring). The instrument's case has a splash-proof structure with good tightness, thus protecting its internal mechanism from contamination ingress.
The working principle of the instrument is based on the deformation of an elastic element (the diaphragm on the measuring system). Under the action of the pressure of the measured medium, the diaphragm is forced to undergo corresponding elastic deformation - displacement. With the help of the connecting rod group, the displacement is transmitted through the transmission mechanism and amplified, and the fixed pointer on the gear gradually indicates the measured value on the dial.
Main Technical Indicators
Accuracy Class: 2.5
Ambient Temperature for Use: -40~+70℃; Relative Humidity not more than 90％
Temperature Influence: When the usage temperature deviates from 20±5℃, the additional temperature error is not more than 0.04％/℃
Working Position: Vertical installation
Case Protection Level: IP64
· Scale Range, External Dimensions and Weight
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型 号Model Number
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标度范围Scale range
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承压部尺寸D1Pressure-bearing part dimension D1
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表壳外径DCase outer diameter D
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重量kgWeight kg
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YPF-100A
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0~0.06、0~0.1、0~0.16、0~0.25、0~0.4、
0~0.6、0~1、0~1.6、0~2.5、-0.1~0、
-0.1~0.06、-0.1~0.15、-0.1~0.3、-0.1~0.5、
-0.1~0.9、-0.1~1.5、-0.1~2.4MPa
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φ85
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φ100
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1.6
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YPF-100B
YPF-100B-F
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φ115
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YPF-150A
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φ85
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φ150
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1.8
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YPF-150B
YPF-150B-F
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φ115
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|
YPF-100B
YPF-100B-F
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0~1.6、0~2.5、0~4、0~6、0~10、
0~16、0~25、0~40＊
-1.6~0、-2.5~0、~4-0、-6~0、-10~0、
-16~0、-25~0、-40~0＊
-0.8~0.8、-1.2~1.2、-2~2、-3~3、-5~5、
-8~8、-12~12、-20~20＊KPa
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φ160
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φ100
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2.9
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YPF-150B
YPF-150B-F
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φ160
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φ150
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3.2
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＊ 0~40、-40~0.±20KPa规格承压部尺寸D, 1为φ85。＊ 0~40、-40~0.±20KPa specifications pressure parts size D, 1 for φ85.
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