Air Compressor Assembly & Matching Parts - Z08390000002AA Specification & Maintenance

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Air compressor assembly

Z08390000002AA

Cylinder body: High-strength cast iron HT250; crankshaft: Alloy steel 40Cr; piston: Aluminum alloy 6061; valves: Stainless steel 304; compliant with ISO 1217 and GB/T 13274-2019

1. Cylinder wear and valve blockage caused by dust entering the intake system; 2. Piston ring fatigue and air leakage due to long-term high-load operation; 3. Bearing damage from insufficient lubrication or contaminated lubricating oil.

1. Regularly clean and replace the air filter (every 150 working hours); 2. Use lubricating oil meeting ISO VG 46 standards and replace it every 500 working hours; 3. Avoid long-term continuous operation beyond the rated pressure (≤1.2MPa).

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Copper pipe assembly 6

Z08360100014AA

TP2 deoxidized copper, wall thickness 1.2mm, tensile strength ≥ 205MPa, bending strength ≥ 100MPa, compliant with GB/T 18033-2007

1. Pipe cracking from improper bending (exceeding material fatigue limit); 2. Surface corrosion from contact with industrial chemicals or humid environments; 3. Pipe deformation from impact by heavy objects or drilling debris.

1. Use professional bending tools, ensure bending radius ≥ 10 times the pipe diameter (≥60mm); 2. Apply anti-corrosion coating to the surface if used in humid/chemical environments; 3. Install protective sleeves in high-impact areas.

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Copper pipe assembly 6

Z08360100015AA

TP2 deoxidized copper, wall thickness 1.2mm, tensile strength ≥ 205MPa, bending strength ≥ 100MPa, compliant with GB/T 18033-2007

1. Joint leakage and pipe damage from uneven stress during installation; 2. Fatigue cracking from long-term vibration of the air compressor; 3. Oxidation and corrosion of the inner wall due to moist compressed air.

1. Ensure even stress during installation and avoid forced assembly; 2. Install vibration-damping brackets near the air compressor connection; 3. Regularly drain moisture from the air system to reduce inner wall oxidation.

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Copper pipe assembly 6

Z08360100016AA

TP2 deoxidized copper, wall thickness 1.2mm, tensile strength ≥ 205MPa, bending strength ≥ 100MPa, compliant with GB/T 18033-2007

1. Pipe blockage caused by impurities in compressed air, leading to pressure buildup and pipe burst; 2. Surface scratches and corrosion from improper maintenance; 3. Thermal expansion and contraction damage in extreme temperature environments.

1. Install a precision filter at the air outlet to remove impurities; 2. Avoid scratching the pipe surface during maintenance; 3. Reserve sufficient expansion space for temperature changes (-30℃ to 80℃).

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Copper pipe assembly 18

Z08360100017AA

TP2 deoxidized copper, wall thickness 1.5mm, tensile strength ≥ 205MPa, bending strength ≥ 100MPa, compliant with GB/T 18033-2007

1. Pipe deformation from excessive pressure (exceeding rated pressure of 1.6MPa); 2. Welding joint cracking from improper welding during manufacturing; 3. Corrosion from long-term exposure to outdoor rain and dust.

1. Ensure system pressure does not exceed the pipe’s rated pressure; 2. Inspect welding joints regularly for cracks; 3. Clean the pipe surface regularly and reapply anti-corrosion coating if needed.

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M27X2-Z1/2" bent fitting

QBJ6012704

Carbon steel AISI 1045, surface zinc plating, thread pitch 2.0mm, bending angle 90°, compliant with ISO 965-1 and ISO 261

1. Thread wear and sliding from over-tightening during installation; 2. Zinc layer damage and corrosion from industrial dust and moisture; 3. Seal surface damage from dirt, leading to air leakage.

1. Use a torque wrench to tighten to standard torque (20-25 N·m); 2. Clean the fitting surface regularly and apply anti-rust oil; 3. Remove dirt from the seal surface before installation.

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M12X1.5-Z1/8" bent fitting

QBJ6011201

Carbon steel AISI 1045, surface zinc plating, thread pitch 1.5mm, bending angle 90°, compliant with ISO 965-1

1. Stress concentration at the bending part from long-term vibration, leading to cracking; 2. Thread corrosion and jamming in humid environments; 3. Damage from improper tool use during disassembly.

1. Install vibration-damping gaskets near the fitting; 2. Store unused fittings in a dry, clean environment; 3. Use matching wrenches to avoid damaging the fitting body.

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M12X1.5-Z1/8" fitting

QBJ5011201

Carbon steel AISI 1045, surface zinc plating, thread pitch 1.5mm, straight type, compliant with ISO 965-1

1. Air leakage from seal ring aging; 2. Thread wear from frequent disassembly and assembly; 3. Deformation from impact by external objects.

1. Replace the seal ring every 6 months; 2. Minimize frequent disassembly and avoid brute force; 3. Install protective covers to prevent external impact.

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Pipe seat

Z08010300057AA

Gray cast iron HT200, surface anti-corrosion painting, precision machining to match pipe installation dimensions, load-bearing capacity ≥ 500N

1. Cracking from uneven stress during pipe installation; 2. Corrosion of the cast iron body in humid/chemical environments; 3. Wear at the pipe contact point from long-term vibration.

1. Ensure the installation surface is flat and the pipe is correctly aligned; 2. Reapply anti-corrosion paint annually; 3. Install rubber gaskets between the pipe and pipe seat to reduce vibration wear.

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Connection bolt

P2200229AA

Alloy steel 8.8 grade, surface zinc plating, tensile strength ≥ 830MPa, compliant with ISO 898-1

1. Fatigue fracture from long-term high-frequency vibration of the air compressor; 2. Thread wear from over-tightening or improper installation; 3. Corrosion of the zinc layer leading to rust and difficulty in disassembly.

1. Use matching washers to distribute stress; 2. Tighten to standard torque (15-20 N·m) and re-tighten monthly; 3. Clean and apply anti-rust oil regularly.

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Washer 8

4313100008

65Mn spring steel, surface galvanized, hardness HRC 42-48, thickness 1.2mm, compliant with GB/T 93-1987

1. Fatigue loss of elasticity from long-term compression; 2. Corrosion causing fracture or deformation; 3. Damage from incorrect installation direction (reverse installation).

1. Replace together with bolts during maintenance; 2. Do not reuse deformed or rusted washers; 3. Ensure the curved surface faces the nut during installation.

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Bolt 5/16"-18UNC

P2200228AA

Alloy steel 8.8 grade, surface zinc plating, thread compliant with UNC (Unified National Coarse) standards, tensile strength ≥ 830MPa

1. Thread sliding from using mismatched nuts or wrenches; 2. Corrosion in humid industrial environments; 3. Fatigue damage from long-term high-load operation.

1. Use only matching UNC nuts and wrenches; 2. Store in a dry environment when not in use; 3. Inspect for thread wear every 3 months and replace if necessary.

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Z1/8"X50 sub

QBJ11010150

Stainless steel 304, passivated surface, thread compliant with ISO 262, length 50mm, designed for size conversion

1. Thread wear from improper installation and disassembly; 2. Corrosion in chemical or humid environments; 3. Damage from brute force during size matching.

1. Confirm size matching before installation to avoid forced assembly; 2. Use professional tools for disassembly and assembly; 3. Apply anti-corrosion sealant to threads in harsh environments.

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Z1/8"X30 pipe clamp

QBJ11040130

Carbon steel Q235B, surface powder coating, clamping range 8-10mm, load-bearing capacity ≥ 200N, compliant with GB/T 15234-1994

1. Clamp damage from over-tightening, leading to pipe deformation; 2. Coating wear and corrosion from dust and moisture; 3. Loosening from long-term vibration, causing pipe displacement.

1. Tighten moderately to avoid damaging the pipe; 2. Clean the pipe clamp regularly and reapply paint if the coating peels; 3. Re-tighten the clamp monthly during continuous operation.

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Angle iron L=80

P991011735AA

Low-carbon steel Q235B, surface hot-dip galvanizing, leg length 80mm, thickness 8mm, load-bearing capacity ≥ 1000N, compliant with GB/T 706-2016

1. Deformation from uneven stress during installation; 2. Galvanizing layer damage and corrosion from impact and moisture; 3. Welding joint cracking from long-term vibration.

1. Ensure even force distribution during installation and fix firmly; 2. Avoid impact by heavy objects and repair galvanizing layer if damaged; 3. Inspect welding joints regularly for cracks and reinforce if needed.

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Flange disc

P0200162AA

Carbon steel AISI 1045, surface anti-corrosion painting, flange thickness 12mm, bolt hole diameter 18mm, compliant with GB/T 9119-2010

1. Seal surface damage from dirt during installation, leading to air leakage; 2. Corrosion of the flange body in humid/chemical environments; 3. Deformation from uneven bolt tightening.

1. Clean the seal surface thoroughly and use a new seal gasket during installation; 2. Apply anti-corrosion paint annually; 3. Tighten bolts evenly in a diagonal sequence to avoid deformation.

What should I do if the Z08390000002AA air compressor assembly fails to supply sufficient air pressure?

First, check for air leakage at fittings, flange disc, and copper pipe joints—tighten loose components or replace worn seals. Then, inspect the air filter (clean or replace if clogged) and lubricating oil level (replenish if insufficient). If the problem persists, check the cylinder and piston rings for wear—replace damaged parts to restore air compression efficiency.

How often should the copper pipe assemblies and fittings of the air compressor system be inspected and maintained?

Conduct weekly inspections: check for pipe deformation, corrosion, and air leakage; tighten loose fittings and pipe clamps. Conduct monthly maintenance: clean copper pipes and fittings, apply anti-rust oil; replace aging seal gaskets. Replace copper pipes every 3-4 years and fittings every 2-3 years—even if no obvious damage is found, to avoid sudden failure.

Can the fasteners (bolts, washers) of the air compressor system be replaced with non-original parts?

It is not recommended. Original fasteners (e.g., P2200229AA, 4313100008) are manufactured to match the air compressor assembly’s load and vibration requirements, complying with ISO 898-1 standards. Non-original parts may have insufficient strength or improper size, leading to loosening, fatigue fracture, and component damage—posing safety hazards. Always use original fasteners for replacement.