Several important parameters 1. Pressure: the minimum air pressure required, common units Kg / cm2, Bar, Mpa, Psi. 2. Flow: that is, considering the maximum gas consumption proper balance, common units, m3 / min, L / min. 1. The water content of compressed air quality requirements: the dryness of the air compressor manufacturers offer, the commonly used term is the dew point temperature ℃. 2. The oil content: the compressed amount of residual oil, commonly used terms are ppm, mg / m3. Air compressor parts price difference causes 1. Configuration: selection of the key components of domestic substitutes can cause significant price gap. 2. Advanced technology: design of non-autonomous, low research and development costs of the product will soon be eliminated. 3. Production is legality: no license through national authoritative nature of the various illicit production, OEM products, will give customers the ultimate cause irreparable damage. C. quality gas oil content per unit volume of air contained in the oil (including oil droplets, suspended particulates, oil vapors), the conversion to the absolute value of pressure 0.1MPa 20 ℃ temperature and relative humidity of 65% of the standard atmospheric conditions, unit mg / m3. D.PPM a representation of trace substances in the mixture in an amount of symbols compressor manufacturer, referring to the parts per million or parts per million (weight ratio PPMw and volume PPMv). Usually we are talking PPM weight ratio. (1kg millionth of a milligram) 1PPMw = 1.2mg / m3 (PA = 0.1MPa, t = 20 ℃, φ = 65%) E. Dew point temperature Moist Air cooling under pressure compressor manufacturer leasing so that the air is not contained in the original saturated steam into saturated steam temperature compressor manufacturer direct sales, or when the air temperature is lowered to the dew point, the air is not saturated water vapor contained in the original reached saturation state (water vapor began to liquefy, liquid condenses out). Volume flow and volume flow of the compressor air consumption of the similarities and differences of pneumatic components compressor air consumption means free flow of air, pneumatic components refers to the flow of air under compression. The conversion formula: Q = Q since pressure * ε m3 / min ε = P row (absolute pressure) / P Suction (absolute pressure) = (P row (gauge) +1.033) /1.033 = (P 'row (gauge pressure ) +0.1013) /0.1013 where P row (gauge) - Unit kg / cm2 P 'row (gauge) - Qin Wei Air Unit MPa (Figure) | compressor manufacturer Rankings | Tongchuan by the compressor manufacturer Xianyang Qin Wei empty press Limited. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) to provide "air compressor and accessories, general machinery parts," such as business, the company has "Wei Qin brand, Coatler card (C?te children)" and other brands. Focus on compression, separation equipment and other industries, have higher visibility in Xianyang. Welcomes inquiries, contact: Liu.