1、 Equipment Introduction

This instrument uses the principle of air pressure difference to test the permeability of air holes in insulating glass spacer strips. Hollow glass spacer stripFixed inOn the pore permeability detector, clamp the spacer strip with a spring, use silicone rubber pads at both ends of the spacer strip to prevent gas leakage, adjust the inlet pressure, record the inlet pressure and outlet pressure, and calculate the pressure difference.

2、 Specifications and main technical parameters

1. Pressure range of pressure gauge: 0-1 MPa;

2. Inlet pressure gauge pressure range: 0-1 MPa;

3. Pressure range of outlet pressure gauge: 0-0.4 MPa;

4. Resolution of pressure gauge: 0.02 MPa;

5. Resolution of intake pressure gauge: 0.05 MPa;

6. Resolution of outlet pressure gauge: 0.02 MPa;

7. Sample size: 500mm；

3、 Usage steps

1. Pull the handle on the spring, compress the spring, and insert the spacer sample into the groove next to the pressure gaugeAlign the center of the spacer with the air hole in the groove;

2. Turn on the air compressor and adjust the inlet control valve to maintain the inlet pressure at 0.5MPa;

3. Record the outlet pressure;

4. Subtract the inlet pressure from the outlet pressure to obtain the air pressure difference.

4、 Usage environment:

1. Environmental temperature for use: 10℃ ～ 40℃；

2. Environmental humidity for use:< 80%.

Note: The air compressor needs to be selected by the user, and the storage tank pressure should be greater than1.1MPa.