How to adjust a pressure switch and safety valve of air compressor

The air compressor safety valve is an air compressor accessory that often fails, but if we can use the air compressor safety valve reasonably, the life of the safety valve will be increased by about 1.5 times.How to adjust the pressure of the air compressor safety valve? What are the techniques for adjusting the safety valve of an air compressor?I believe in the air compressor expert, so I consulted an air compressor expert. They gave me a good suggestion.1. If it is a spring-returnable type, there should be something on the top that can rotate. Turning upwards will increase the pressure, and downwards will decrease the pressure.2. Tighten the screw on the top of the safety valve down, but not only tighten one circle at a time, but adjust it slowly. But it is dangerous.3. The safety pressure of the safety valve is adjusted by the local technical supervision department. It is recommended to invite someone to adjust it.

Generally speaking, the air compressor starts automatically at low pressure and stops automatically at high pressure.I don't know what kind of air compressor you have, piston or screw. But no matter which kind, there are usually pressure switches or pressure sensors to realize automatic control.The pressure switch has a RANGE and DIFFE. You can adjust the range as needed, and diffe generally does not need adjustment.If the pressure sensor needs to be adjusted, only adjust the set start-stop pressure value instead of adjusting the pressure sensor itself.If there is a display panel on the air compressor, it usually has the item of set pressure, and adjust the value there to change the start-stop pressure.

Ask

if it is a piston, there are two one-word rotary buttons, one is written clockwise to increase the opening pressure and closing pressure at the same time, and the other is written clockwise to increase the opening pressure while the closing pressure remains unchanged, ask How to increase the pressure.

Answer

First confirm the wiring of your pressure switch. Whether normally open or normally closed . Then adjust according to the instructions.If you don’t understand, you can write down the initial position and adjust it slowly. Generally imported models only has one pressure switch to increase the pressure.For example, the range is set at 30bar (stop pressure), and diffe is set at 6bar (start pressure is 30-6=24bar).