Preheating and Warming System Parts Specification

Z01130000004AA

Preheating and warming system

1. Component fatigue from frequent cold-start cycles; 2. Leakage from aged seals; 3. Overheating from blocked air flow.

1. Avoid frequent short preheating cycles; 2. Inspect seals annually for aging; 3. Keep air vents clear to prevent overheating.

Main frame: Alloy steel (40Cr) with heat treatment; Internal wiring: High-temperature resistant copper; Seals: Fluororubber (FKM).

5100100506

Fuel heater

1. Burnout from dry operation (no fuel flow); 2. Clogging from fuel sediment; 3. Corrosion from condensed moisture.

1. Ensure fuel flow before activating; 2. Clean fuel filter regularly to reduce sediment; 3. Drain moisture from fuel system monthly.

Heating element: Nickel-chromium alloy; Housing: Stainless steel (304); Heat exchanger: Aluminum alloy (ZL109).

5000500003

Diesel fuel tank and lines

1. Corrosion from fuel impurities; 2. Line wear from machinery vibration; 3. Tank damage from impact or freezing.

1. Use clean, filtered diesel; 2. Secure fuel lines with clips to reduce vibration; 3. Drain water in cold weather to prevent freezing.

Tank: Carbon steel (Q235A) with anti-corrosion coating; Lines: Stainless steel (304); Connections: Brass (H62).

Z01130100002AA

Support

1. Fatigue from long-term vibration; 2. Deformation from uneven load distribution; 3. Corrosion from environmental moisture.

1. Check mounting tightness quarterly; 2. Ensure load is evenly distributed; 3. Apply anti-corrosion coating for outdoor use.

Body: Low-alloy steel (Q345B); Mounting points: Reinforced; Surface: Powder-coated for anti-corrosion and wear resistance.

Z01130100003AA

Support, oil tank

1. Wear from tank weight and vibration; 2. Deformation from improper installation; 3. Rust from oil and moisture contact.

1. Align support perfectly with tank mounting points; 2. Tighten fasteners to recommended torque; 3. Clean oil stains regularly to prevent rust.

Body: Carbon steel (Q235A) with galvanized coating; Contact surface: Rubber-padded to reduce vibration and prevent tank damage.

Z01130100007AA

Support, defroster

1. Fatigue from defroster vibration; 2. Damage from impact during machinery operation; 3. Corrosion from cold, humid environments.

1. Install in a protected area to avoid impact; 2. Inspect for cracks in cold weather; 3. Use anti-rust spray on uncoated surfaces.

Body: Alloy steel (40Cr); Surface: Anti-corrosion plating; Fastening holes: Precision-drilled for alignment.

P7100208AA

Guard

1. Impact damage from debris or machinery parts; 2. Corrosion from outdoor exposure; 3. Bending from improper handling.

1. Inspect for dents/breaks regularly; 2. Replace if structural integrity is compromised; 3. Clean and repaint damaged areas promptly.

Body: Carbon steel (Q235A) with anti-rust painting; Mesh (if applicable): Steel wire for impact resistance; Edges: Smooth to prevent injury.

Z01130200007AA

Waste exhausting nipple

1. Corrosion from high-temperature exhaust gases; 2. Wear from debris in exhaust; 3. Leakage from loose connections.

1. Inspect for corrosion quarterly; 2. Tighten connections after each maintenance cycle; 3. Clean debris from exhaust ports regularly.

Body: Heat-resistant alloy steel (Inconel 600); Threads: Precision-tapered; Surface: Oxide layer for high-temperature protection.

Z01130300004AA

Fitting, waste pipe

1. Heat fatigue from repeated temperature cycles; 2. Thread wear from disassembly; 3. Leakage from seal degradation.

1. Avoid rapid temperature changes; 2. Replace thread sealant after each disassembly; 3. Torque to ASME B1.20.1 recommended values.

Body: Stainless steel (316); Threads: Internal/external precision machining; Sealing surface: Polished.

Z01130300002AA

Elbow, waste pipe

1. Fatigue from bending stress; 2. Corrosion from exhaust gases; 3. Damage from misaligned installation.

1. Install with proper alignment to reduce stress; 2. Inspect for cracks in the bend area; 3. Use heat-resistant sealant at connections.

Body: Heat-resistant stainless steel (321); Bend angle: 90° precision forming; Wall thickness: 2.0mm for durability.

5402600475

Bellows L=2600

1. Fatigue from vibration and thermal expansion; 2. Damage from over-bending; 3. Corrosion from moisture and exhaust.

1. Avoid bending beyond maximum allowable radius; 2. Secure with brackets to reduce vibration; 3. Inspect for cracks in the convolutions.

Body: Stainless steel (304) bellows; Ends: Welded steel flanges; Length: 2600mm, with thermal expansion compensation.

5402600476

Bellows L=3300

1. Thermal fatigue from high-temperature cycles; 2. Wear from contact with other components; 3. Leakage from welded joint damage.

1. Maintain clearance from other parts to avoid contact; 2. Inspect welded joints for cracks; 3. Replace if bellows show signs of bulging.

Body: Stainless steel (304) bellows; Ends: Threaded connections; Length: 3300mm, resistant to thermal shock.

4600300101

Tee type L type flow reduction 1000WOG ball valve

1. Seat wear from fluid impurities; 2. Ball corrosion leading to leakage; 3. Handle damage from rough operation.

1. Keep fluid clean to reduce seat wear; 2. Operate handle smoothly (avoid forceful turning); 3. Lubricate valve internals every 6 months.

Body: Cast steel (WCB); Ball: Stainless steel (304); Seat: PTFE; Maximum pressure: 1000PSI, temperature: -20°C to 180°C.

QBJ5220808

Straight fitting Z1"

1. Thread damage from cross-threading; 2. Leakage from improper sealing; 3. Corrosion from fluid and environmental factors.

1. Align threads manually before tightening; 2. Use thread sealant compatible with diesel/fluids; 3. Torque to recommended values.

Body: Brass (H62); Threads: Z1" tapered precision machining; Surface: Polished to prevent corrosion and ensure tight seals.

QBJ6140808

Internal and external thread fitting

1. Wear from vibration-induced friction; 2. Thread stripping from over-tightening; 3. Corrosion from moisture and fluids.

1. Use lock washers to reduce vibration impact; 2. Tighten with torque wrench to avoid overloading; 3. Inspect for rust during maintenance.

Body: Stainless steel (304); Internal/external threads: Precision rolled; Surface: Passivated for enhanced corrosion resistance.

P1300887AA

￠25 hose fitting

1. Wear from hose movement; 2. Leakage from improper clamping; 3. Corrosion from fluid contact.

1. Ensure hose is fully seated before clamping; 2. Use compatible hoses (￠25) to avoid damage; 3. Replace if fitting shows signs of corrosion.

Body: Brass (H59); Barbs: Precision-formed for secure hose grip; Threads: Tapered for sealing; Compatible with 25mm ID hoses.

4300506030

Bolt M6X30

1. Thread wear from improper tightening; 2. Fatigue fracture from vibration; 3. Corrosion from moisture and chemicals.

1. Tighten with torque wrench (8-10 N·m); 2. Use spring washers to prevent loosening; 3. Apply anti-corrosion grease for outdoor use.

High-strength carbon steel (8.8 grade); Surface: Zinc plating; Threads: Precision rolled for wear resistance.

4313000006

Washer 6

1. Wear from friction with bolt/nut; 2. Deformation from high pressure; 3. Rust from moisture.

1. Use only with M6 bolts/nuts; 2. Replace if flattened or cracked; 3. Clean surface before installation to ensure even pressure.

Carbon steel (Q235A); Surface: Zinc plating; Thickness: 1.0mm for load distribution.

4309300006

Nut M6

1. Thread wear from repeated use; 2. Loosening from vibration; 3. Deformation from over-tightening.

1. Replace after 3-5 disassembly cycles; 2. Pair with matching M6 bolts; 3. Use socket wrench to avoid thread damage.

Carbon steel (8 grade); Surface: Zinc plating; Threads: Precision tapped for tight fit.

4300508030

Bolt M8X30

1. Over-tightening leading to thread deformation; 2. Vibration-induced fatigue; 3. Corrosion from harsh environments.

1. Tighten to 15-18 N·m torque; 2. Inspect and retighten every maintenance cycle; 3. Use stainless steel version for marine environments.

Alloy steel (10.9 grade); Surface: Galvanized; Threads: Precision rolled for durability.

4313000008

Washer 8

1. Wear from heavy load; 2. Deformation from uneven pressure; 3. Corrosion from oil and moisture.

1. Use with M8 bolts to distribute load; 2. Ensure flat installation surface; 3. Replace if rust or deformation is detected.

Carbon steel (Q235A) with zinc plating; Thickness: 1.2mm; Outer diameter: 16mm for stable load distribution.

4309300008

Nut M8

1. Thread damage from cross-threading; 2. Fatigue from repeated torque cycles; 3. Rust from environmental exposure.

1. Align threads before tightening; 2. Replace if thread damage is visible; 3. Store in dry environment before use.

Carbon steel (8 grade); Surface: Zinc plating; Threads: Precision tapped for compatibility with M8 bolts.

4300508020

Bolt M8X20

1. Wear from frequent disassembly; 2. Vibration-induced loosening; 3. Corrosion from fuel and oil contact.

1. Use thread lockant for high-vibration areas; 2. Replace after 4-6 disassembly cycles; 3. Clean threads of oil before installation.

High-strength carbon steel (8.8 grade); Surface: Zinc-nickel plating; Threads: Precision rolled for wear resistance.

P5200038AA

Safety pin

1. Wear from repeated insertion/removal; 2. Bending from improper use; 3. Corrosion from moisture and chemicals.

1. Insert/remove gently to avoid bending; 2. Inspect for wear or bending before reuse; 3. Replace if corrosion affects structural integrity.

Body: High-carbon steel (45#) with quenching treatment; Surface: Zinc plating; Diameter: Precision-controlled for secure fit.

How to confirm these parts fit my preheating and warming system?

All parts are compatible with the Z01130000004AA preheating and warming system. Verify your equipment’s part number (P/N) with the tables above. For further confirmation, provide your machinery model for technical compatibility checks.

What maintenance is needed for preheating system parts in cold weather?

Clean fuel filters monthly to prevent clogging; replace fuel heater elements annually; drain moisture from fuel tanks/lines to avoid freezing; inspect bellows and pipes for cracks; retighten fasteners to combat vibration-induced loosening.

How to fix a leaking ball valve or fitting in the system?

For valves, replace worn seats/balls or the entire unit; for fittings, re-tighten to recommended torque, replace thread sealant, or swap damaged fittings. Ensure parts meet API 608/ASME B1.20.1 standards for proper sealing.