YZ series axial pressure gauge

Product application:

General pressure gauges are suitable for measuring the pressure of liquids, vapors, and gases that are non explosive, non crystalline, non solidifying, and do not corrode copper and copper alloys.
Accuracy level: 2 5. 1.6.
Measurement range: 0-0.1~0-100MPa, -0.1-0, -0.1-2.4MPa.

Generally, pressure gauges belong to local indication type pressure gauges, which display the magnitude of pressure locally and do not have remote transmission display or adjustment functions. In the process of industrial process control and technical measurement, due to the high mechanical strength, easy production, simple installation, and convenient reading of the elastic sensitive components of general pressure gauges, they have been increasingly widely used.

working principle:

The pressure gauge converts the elastic deformation of the Bourdon tube, a sensitive element inside the gauge, into rotational motion through the conversion mechanism of the movement inside the gauge, causing the pointer to deflect to display pressure.

Bourdon tubes are divided into C-shaped tubes, reed tubes, spiral tubes, and other types. Generally, cold work hardening materials (commonly copper alloys) are used, which have high plasticity in the annealed state. After cold work hardening and qualitative treatment, high elasticity and strength are obtained.

The cross-section of the C-type Bourdon tube sensitive element appears elliptical, and the pressure of the measuring medium acts on the inner side of the Bourdon tube, causing the elliptical cross-section of the Bourdon tube to tend towards a circular cross-section. Due to the slight deformation of the Boden tube, a certain amount of ring stress is formed. This ring stress will cause the Bourdon tube to extend outward. Due to the lack of fixation at the head of the elastic Boden tube, it will undergo slight deformation.

Technical parameters:

1) Dial diameter (mm): ￠ 40; ￠50； ￠60； ￠75； ￠80； ￠100； ￠150； ￠200； ￠250

2) Accuracy level (%): 1.0; 1.6; 2.5; four

3) Measurement range (Mpa): 0~0.1, 0~0.16, 0~0.25, 0~0.4, 0~0.6, 0~1, 0~1.6, 0~2.5, 0~4, 0~6, 0~10, 0~16, 0~25, 0~40, 0~60, 0~100; -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, -0.1~2.4

4) Reference working conditions

Under the following conditions, the basic error, backlash, tap displacement, and pointer deflection stability of the instrument shall comply with the relevant provisions of this standard.

a) The ambient temperature is 20 ℃± 5 ℃;

b) The instrument is in its normal working position;

c) Uniform load variation;

Note: When not specified, the normal working position refers to vertical installation.

5) Temperature impact: not greater than 0.4%/10 ℃ (deviation from operating temperature of 20 ± 5 ℃);

6) Execution standard: GB/T1226-2010;^[1-2]

Installation method:

1) Radial direct installation

2) Behind the radial belt

3) Axial direct installation

4) Axial belt front

Precautions for use:

1) It is advisable to use 1/3 to 2/3 of the full range for work pressure, and the maximum range of use should not exceed 3/4 of the full scale.

2) The calibration cycle generally does not exceed six months. For pressure measuring parts with large fluctuations in the medium, frequent use, high accuracy requirements, and strict safety factors, the calibration cycle can be appropriately shortened according to specific circumstances.

3) The working environment should be free of corrosive gases.