The material and characteristics of the flat washers of Atlas Copco air compressors
Material selection: Based on the pressure, temperature and medium characteristics of the application site, common materials include:
Metal materials: such as galvanized steel, stainless steel (304/316), suitable for high-pressure and high-temperature areas (such as compressor cylinder bodies, oil-gas separators end covers), with high strength and corrosion resistance.
Non-metal materials: such as rubber, asbestos substitutes, PTFE (polytetrafluoroethylene), suitable for low-pressure sealing areas (such as pipe joints), with good sealing and buffering properties.
Surface treatment: Metal flat washers are often treated with zinc plating, chrome plating, etc., to enhance rust resistance and adapt to the humid or oily environment inside the air compressor.
Specifications and compatibility
Size parameters: The specifications of the flat washers need to match the diameter of the bolt (such as M8, M10, M12, etc.), including inner diameter (for matching the bolt), outer diameter (for the pressure range) and thickness (for strength requirements). The standard sizes of the standard parts for different models of air compressors follow mechanical industry norms (such as ISO, DIN standards).
Model compatibility: The flat washer models for different series of air compressors (such as GA, G, ZR, etc.) are different. For example:
For the small GA series (such as GA7-GA37), the flange connection of the connection often uses M10-M16 size of metal flat washers.
For the large ZR series screw compressors, the high-pressure parts may use thickened stainless steel flat washers.
Application areas
Connection flange of the air compressor main unit and the motor
Fixation of the end cover of the oil separator and cooler
Pipe flange connection points
Installation interfaces of valves, pressure gauges, etc. accessories
Fixation bolts of rotating components such as motors and fans
