Installation of stainless steel pressure gauge

1. The installation position of the pressure gauge should meet the requirements of the installation state, and the dial should not be placed horizontally, and the installation position should be convenient for the staff to observe. 　　

2. The distance between the installation place of the pressure gauge and the pressure measuring point should be as short as possible, so as to ensure good sealing and no leakage.

3. There should be a buffer at the front end of the installed pressure gauge; In order to facilitate inspection, a cut-off valve should be installed under the instrument; When the medium is dirty or has pulse pressure, filters, buffers and stabilized gas can be used.

Requirements for installation and storage of stainless steel pressure gauges

Correct use of stainless steel pressure gauge;

1. Before installation, check whether the model, specification and precision grade of the instrument meet the requirements of instrument use. Check whether the joint thread of the instrument is consistent with the installed female thread.

2, pressure gauge should be installed vertically, the inclination is generally not more than 30, and strive to keep the same level with the measuring point, so as not to bring the indication error.

3, after installation, in the absence of pressure, observe whether the pointer is at zero or close to the plate to stop the nail, otherwise it should not be used.

4. When measuring the steam pressure, the lower end of the pressure gauge should be equipped with a ring tube, and there is water to transmit the steam pressure during use, so as to avoid high-temperature steam rushing into the spring tube, affecting the accuracy of the instrument, or inadvertently melting the solder, causing instrument leakage detection, accidents or scalding people.

5. When in use, open the valve slowly, so that the pressure rises to the working position slowly. If the valve is suddenly opened, if the pressure is out of control and exceeds the upper limit of measurement, the spring tube will be damaged, deformed or the fan teeth will be lost, which will make the instrument lose its function.

6, after use, should slowly pressure relief, don't make the pointer suddenly dropped to zero, so the pointer back into the plate stop nail, will bend or even interrupt the pointer.

7, the instrument should be in accordance with the requirements for verification or maintenance.

8. The removed instruments shall be stored in a dust-proof, dry and corrosion-free environment.

Guide to pressure gauge measurement? How to use pressure gauge

Pressure gauge is a commonly used equipment for measuring pressure, which is widely used in various industries. This article will introduce the methods and precautions of using the pressure gauge to help you use the pressure gauge correctly and accurately.

Part I: Overview of Pressure Gauge

1.1 Definition of pressure gauge

Pressure gauge is an instrument for measuring medium pressure. It measures the pressure by measuring the force corresponding to the pressure and converting it into an electrical signal or a mechanical indicator.

1.2 Classification of pressure gauges

Common pressure gauges can be divided into mechanical pressure gauges and electronic pressure gauges according to their working principles. Mechanical pressure gauge is composed of spring, pointer and dial, which is suitable for pressure measurement in general environment. The electronic pressure gauge is converted into an electrical signal through a sensor, and the pressure is displayed on a digital display screen, which is suitable for special requirements or high-precision pressure measurement.

Part II: Steps of Using Pressure Gauge

2.1 Step 1: Select the appropriate pressure gauge.

Select the appropriate pressure gauge according to the pressure range, medium, working environment and other conditions to be measured. Mechanical pressure gauges are usually suitable for lower pressure range, while electronic pressure gauges are suitable for higher pressure range or require high precision measurement.

2.2 Step 2: Install the pressure gauge.

Install the pressure gauge on the system or pipeline to be measured. Pay attention to ensure that the pressure gauge is closely connected with the system or pipeline during installation, and use appropriate seals to prevent leakage.

2.3 Step 3: Zero the pressure gauge.

Before using the pressure gauge, it needs to be zeroed to make the pointer point to zero. The method of zero adjustment is usually accomplished by turning the zero adjustment screw or knob with a wrench.

2.4 Step 4: Connect the pressure source.

Connect the medium to be measured with the pressure gauge through an appropriate connection mode. Pay attention to ensure the tightness of the connection port to prevent medium leakage.

2.5 Step 5: Read the pressure value.

After the medium is connected to the pressure gauge, wait for a period of time to stabilize the pressure, and then read the pressure value. The mechanical pressure gauge indicates the pressure value through the pointer, while the electronic pressure gauge displays the pressure value through the digital display screen.

2.6 Step 6: Turn off the pressure source and remove the pressure gauge.

After use, turn off the pressure source first, and then remove the pressure gauge. Pay attention to slowly reduce the input pressure during disassembly to avoid sudden pressure release and damage to the pressure gauge.

Part III: Matters needing attention in using pressure gauges

3.1 Pay attention to the bearing range of pressure gauge.

When using the pressure gauge, make sure that the pressure range of the medium is within the bearing range of the pressure gauge. Exceeding the bearing range of the pressure gauge may cause damage or failure of the pressure gauge.

3.2 Pay attention to the use environment of the pressure gauge.

The use environment of pressure gauge should also meet certain requirements, such as temperature and humidity. Avoid exposing the pressure gauge to too high or too low temperature and humidity environment, so as not to affect its measurement accuracy and stability.

3.3 Regular inspection and calibration

After using the pressure gauge for a period of time, it should be checked and calibrated regularly. The inspection mainly includes checking whether the seal is in good condition, whether the pointer is normal and whether the dial is clear; Calibration can be done by comparing with other pressure gauges with known accuracy, or by asking a professional organization to calibrate.

3.4 Handle with care and handle with care.

When using the pressure gauge, be careful, handle it gently to avoid collision or falling, so as to prevent the pressure gauge from being damaged.

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