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Help CenterScrew Air Compressor Parts, Air Compressor Consumables, Three Filters for Screw Air Compressor
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The Core Functions and Replacement Guide of the Three Filters (Air Filter / Oil Filter / Oil Separator Core) of the Screw Compressor
I. Core Functions and Technical Parameters of the Three-Filter System
Air filter element
Function: Filters dust in the inhaled air (filtration efficiency ≥ 99.5%), protecting the rotor of the main unit.
Parameters: Dust holding capacity (≥ 50g), Initial pressure difference (≤ 0.02 MPa).
Oil filter
Function: Intercept metal debris in the lubricating oil (filtration accuracy: 10 μm), ensuring the lubrication of the bearings.
Parameters: Filtration capacity (≥8g), Pressure resistance level (≥1.2MPa).
Oil and gas separator
Function: Separates oil particles from compressed air (with oil content ≤ 3 ppm), reducing fuel consumption.
Parameters: Separation efficiency (≥ 99.9%), Service life (4000 - 8000 hours).
II. Replacement Cycle and Judgment Criteria
Accessories Standard Cycle Signs of Early Replacement
Air Filter 1500 - 2000 hours Pressure difference > 0.05 MPa, filter paper turns black
Oil Filter 3000 hours Increased oil temperature, abnormal noise from the main unit
Oil Filter Element 4000 - 6000 hours Excessive oil content in exhaust, doubled fuel consumption
III. Replacement Procedure Steps
Air filter replacement:
Shut down and depressurize → Remove the outer casing → Remove the old filter element → Clean the filter housing → Install the new filter element (pay attention to the direction of the sealing ring).
Oil filter replacement:
Empty the old oil → Remove with a chain wrench → Apply new oil to the sealing ring → Tighten to a torque of 30 N·m.
Oil filter replacement:
Check the pressure of the separation tank → Remove the old core → Clean up the remaining oil → Vertically install the new core (prohibit tilting).
IV. Common Questions and Misconceptions
Q1: Can the filter element be reused after being blown clean with compressed air?
A: Only for the primary filter element and the number of uses should be ≤ 2 times. For the high-efficiency filter element, blowing it clean will damage the fiber structure.
Q2: Why are the prices of the third-stage filters in the auxiliary factory 50% lower?
A: Poor filter materials result in a 30% decrease in filtration efficiency, and prolonged use accelerates the wear of the main unit.
V. Recommended Original Factory Parts
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