What is the reason for the increase of oil free air compressor pressure

Oil-free water lubrication screw air compressor has always enjoyed a high reputation in the market. The frequency conversion oil-free system selected by the device can not only reduce the oil content in the compressed air, but also be stable in use. Therefore, the correct use of oil-free air compressor has become a topic of concern to users, no matter what kind of equipment in the operation process are inevitable problems. Therefore, enterprise users need to understand the causes of various types of frequency conversion air compressor failure in time, so as to deal with it in time. The following is one of the common faults of oil free air compressor high pressure problems. The main reasons for the high working pressure of the oil-free variable frequency screw air compressor are:

1. The exhaust valve or safety cap is not sealed or leaked, which increases the suction pressure of the screw air compressor.

2. The efficiency of the compressor conveying gas is reduced, the gas transmission is reduced, the gap is increased, the sealing ring is worn too much, and the suction pressure is increased.

If the heat load of the warehouse suddenly increases, the cooling capacity of the screw air compressor is insufficient, which will cause the suction pressure to be too high.

4. The expansion valve of the system is not adjusted correctly, or the temperature sensing bag is fastened, the oil suction pipe or throttle valve is opened too much, the float valve fails or the ammonia pump system circulates too much. Cause excessive liquid supply, compressor suction pressure is too high, when the screw air compressor pressure is too high or too low, you must promptly check whether the intake valve is fully open, whether the current is in the normal range, the external useful air volume, whether there is air leakage, etc.

At present, many users will be online oil-free screw air compressor, we must verify the manufacturer's brand and qualification when buying online. When it comes to money issues, don't trust the seller's excuses and rhetoric. You should examine the comprehensive strength of the selected manufacturers in many ways, choose manufacturers with guaranteed quality and high after-sales service quality, and after determining the air compressor model, Sign a formal contract so as to guarantee our rights and interests.