These designs come with two access valves side to provide most effective protection for compressor filtrate precision: 35mm 1. Appropriate temperature: -45-+65 2. Maximum pressure: 3.1Mpa 3. Prevent dirt from entering compressor 4. If inside jammed, the spilling valve will be opened automatically 5. Apply to various alloy for welding 6.Excellent corrosive resistance ability 7. Pressure reduction automatically when full liquid flow through 8. Full size of products series When the refrigerant Liquid flows along the direction of the arrow instructed on Filter, the side spilling-valve will run its function: if it generates exceeding pressure when flowing over parts, the side valve will be slightly opened to remain sufficient airflow to cold down the temperature of motor inside full-sealed compressor. The side valve will be not opened automatically direction of air-absorption is conversed of arrow instructed on filter, regardless of how high pressure is, it will not opened automatically. At this moment, it need one more repaired valve repaired valve installed to test pressure data through from filter core to air-absorption assist valve. Letter of T illustrates there has access valve inside for this type of equipment, if the side valve can not run its function, please this access valve to test pressure.