What should be paid attention to during the installation of the pressure gauge of the hydraulic system?
What should be paid attention to during the installation of the pressure gauge of the hydraulic system? Dalan Hydraulics tells you:
1. Under normal circumstances, the installation height should be flush with the person's line of sight, about 1.5m.
2. For high pressure gauges, the installation height should be higher than the average person's head.
3. When measuring the pressure of liquid or vapor medium, the error generated by the liquid column should be avoided. The pressure gauge should be installed at the same level as the pressure tap. Otherwise, the value of the pressure gauge must be corrected.
4. The connection of the pressure gauge should be based on the measured pressure and the nature of the tested medium, and select the appropriate material as the sealing gasket to prevent leakage.
5, the thickness of the pressure guiding tube should be appropriate, generally 6 ~ 10mm, the length is as short as possible, otherwise it will cause measurement delay.
6. The pressure gauge should be installed at room temperature as much as possible, the relative humidity is less than 80%, the vibration is small, the dust is less, and there is no corrosive substance.
7. For electrical pressure gauges, electromagnetic interference should be avoided as much as possible.
8. When two pressure gauges are installed side by side, the distance between the outer dimensions of the instrument should be 0-50mm.
9. The installation position of the pressure gauge should avoid the place where mechanical operation (eg: manually operated valve handle) is often used, so as not to damage the pressure gauge when operating other equipment.
10. To open a hole in a pressure pipe, a mechanical opening method (electric drill or hand drill) must be used.
11. The upper hole of the wind pressure pipe can adopt the gas cutting method, and the hole is rounded and opened after cutting.
12. A shut-off valve should be installed between the pressure port and the pressure gauge for use during maintenance. The shut-off valve should be installed close to the pressure tap.
13. When measuring the pressure of the high-pressure fluid medium, the pressure gauge case should be facing the wall or no one should pass during installation to prevent accidents.
14. When measuring the pressure of corrosive medium, in addition to selecting the pressure gauge with anti-corrosion capability, an isolation device should be installed to isolate the measured medium from the elastic element by using the isolation liquid in the isolation tank.
15. When measuring the pressure of severe fluctuations (such as the outlet pressure of the pump and compressor), the needle valve and the buffer should be installed before the pressure gauge, and if necessary, a damper should be added.
16. When measuring the pressure of medium with high viscosity or easy to crystallize, install the isolation tank on the pressure-receiving device to fill the inside of the tank and the pressure-conducting tube with the isolation liquid. If necessary, take insulation measures.
17. When measuring the pressure of the dust-containing medium, it is best to install a dust collector after the pressure-receiving device.
In short, for the different properties of the measured medium, it is necessary to take measures such as heat prevention, anti-corrosion, anti-freeze, anti-blocking and dust prevention.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
Copyright http: / (Dalan Motor) Reprint, please indicate the source
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
What should be paid attention to during the installation of the pressure gauge of the hydraulic system? Dalan Hydraulics tells you:
1. Under normal circumstances, the installation height should be flush with the person's line of sight, about 1.5m.
2. For high pressure gauges, the installation height should be higher than the average person's head.
3. When measuring the pressure of liquid or vapor medium, the error generated by the liquid column should be avoided. The pressure gauge should be installed at the same level as the pressure tap. Otherwise, the value of the pressure gauge must be corrected.
4. The connection of the pressure gauge should be based on the measured pressure and the nature of the tested medium, and select the appropriate material as the sealing gasket to prevent leakage.
5, the thickness of the pressure guiding tube should be appropriate, generally 6 ~ 10mm, the length is as short as possible, otherwise it will cause measurement delay.
6. The pressure gauge should be installed at room temperature as much as possible, the relative humidity is less than 80%, the vibration is small, the dust is less, and there is no corrosive substance.
7. For electrical pressure gauges, electromagnetic interference should be avoided as much as possible.
8. When two pressure gauges are installed side by side, the distance between the outer dimensions of the instrument should be 0-50mm.
9. The installation position of the pressure gauge should avoid the place where mechanical operation (eg: manually operated valve handle) is often used, so as not to damage the pressure gauge when operating other equipment.
10. To open a hole in a pressure pipe, a mechanical opening method (electric drill or hand drill) must be used.
11. The upper hole of the wind pressure pipe can adopt the gas cutting method, and the hole is rounded and opened after cutting.
12. A shut-off valve should be installed between the pressure port and the pressure gauge for use during maintenance. The shut-off valve should be installed close to the pressure tap.
13. When measuring the pressure of the high-pressure fluid medium, the pressure gauge case should be facing the wall or no one should pass during installation to prevent accidents.
14. When measuring the pressure of corrosive medium, in addition to selecting the pressure gauge with anti-corrosion capability, an isolation device should be installed to isolate the measured medium from the elastic element by using the isolation liquid in the isolation tank.
15. When measuring the pressure of severe fluctuations (such as the outlet pressure of the pump and compressor), the needle valve and the buffer should be installed before the pressure gauge, and if necessary, a damper should be added.
16. When measuring the pressure of medium with high viscosity or easy to crystallize, install the isolation tank on the pressure-receiving device to fill the inside of the tank and the pressure-conducting tube with the isolation liquid. If necessary, take insulation measures.
17. When measuring the pressure of the dust-containing medium, it is best to install a dust collector after the pressure-receiving device.
In short, for the different properties of the measured medium, it is necessary to take measures such as heat prevention, anti-corrosion, anti-freeze, anti-blocking and dust prevention.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
Copyright http: / (Dalan Motor) Reprint, please indicate the source
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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