Q:When the pressure vessel is in hydraulic test, is the pressure gauge container good or the following?

According to the "pressure vessel safety technology supervision regulations", ninety-sixth pressure test, the pressure vessel connection parts of the fastening bolts must be assembled fully, fastening properly. The test pressure gauge shall be in accordance with the relevant provisions of the seventh chapter. At least two gauges with the same range and calibration shall be used and shall be installed at the top of the container to be easily observed.The pressure gauge hits the top and the bottom, the pressure must not be the same, ah, below closed above, a liquid column static pressure?!

Q:What does the belt stop of the pressure gauge mean?

Pressure strap pin? Are you sure there is no mistake in the word?

Q:How to control three-phase motor with electric contact pressure gauge

Electric contact pressure gauges - control intermediate relays (or electronic switches) - - control AC contactors - in the control motors

Q:What are the procedures for checking the pressure gauge in that department?.

Quality Supervision Bureau

Q:What is the pressure gauge called?

The internal structure of the pressure gauge is different. The most common is a differential pressure gauge

Q:How do you test the pressure gauge for the pressure vessel?

To the quality and Technical Supervision Bureau for verification.To pay, or their company sent to textual research.

Q:Function of electric contact pressure gauge

Function of electric contact pressure gauge:The utility model is used for measuring the positive and negative pressure of the gas and liquid medium which does not corrode copper and copper alloy, and sends out signals when the pressure reaches a predetermined value, and the control circuit is switched on to achieve the purpose of automatic control of the alarm.Electrical contact signal pin in electric contact pressure gauge device, a permanent magnet can be adjusted, can increase the contact force, speed up the contact action, so that the contact reliability, eliminating the arc, can effectively avoid the instrument working environment due to frequent vibration or medium pressure pulsation caused by contact off. Therefore, the electric contact pressure gauge has the advantages of reliable operation, long service life and large power of the contact switch.

Q:Detailed explanation of working principle of Bourdon tube pressure gauge

Mechanical deformation and mechanical transmission

Q:See others welding, found that there are two pressure gauges on the cylinder, one is 0-0.3 range as if, and the other is 0-4 range, ask why, is it safety considerations or other reasons? thank

0-0.3MP is a low pressure meter, which is an oxygen pressure reducer. It converts the high-pressure oxygen into a uniform low-pressure oxygen through the knob handle to supply welding or cutting. 0.3MP's pressure is very common.0- 4MP is a high pressure oxygen meter. The oxygen bottle allows 15MP gas to be filled. This is the gas left in the cylinder at present, 4MP. High pressure makes gas cylinders fill more gas.

Q:How do you contact the pressure meter to the pump control box?

The electric contact pressure gauge has upper limit and lower limit contact (common midpoint). The lower contact (less water start, parallel contactor normally open contact retention) connected to the pump contactor coil; the upper contact (water full stop) connected to intermediate relay coil, the normally closed contact string into the pump contactor coil circuit of the intermediate relay action, disconnect contactor coil power source. If the contactor is large, then the lower limit contact will be amplified by another relay.