AirCoat part 0533418 is an inlet housing used in the fluid section of AirCoat spray systems to direct material from the siphon hose or supply line into the pump. It houses the inlet check valve assembly and provides the threaded connection for the fluid intake. Replacing a worn, cracked, or damaged inlet housing restores proper fluid flow and prevents air ingestion or material leaks on compatible AirCoat equipment.
| Part Number | 0533418 |
|---|---|
| Part Description | Inlet Housing |
| Brand | AirCoat |
| Fits | AirCoat 423 |
| Condition | New |
The AirCoat 0533418 Inlet Housing is a critical fluid passage component used in AirCoat 423 air‑assisted spray systems. It attaches to the pump fluid section and provides the threaded port for the siphon hose or material supply line. The housing also contains the inlet check valve assembly, which ensures fluid flows in the correct direction and prevents backflow when the pump is not operating.
Inlet housings can become cracked due to overtightening, freeze damage, or physical impact. They may also suffer from thread wear, corrosion, or internal damage that compromises the check valve seat. A damaged inlet housing can cause air ingestion (loss of prime), external leaks, or erratic fluid delivery. Replacing a worn or cracked inlet housing restores proper pump priming and reliable material flow.
| Fluid intake connection | Provides threaded port for siphon hose or supply line |
|---|---|
| Check valve housing | Contains the inlet check ball and cage to prevent backflow |
| Fluid flow path | Directs material from the supply into the pump cylinder |
| Cracks or damage | Visible cracks, broken threads, or impact damage |
|---|---|
| External leakage | Fluid seeps from the housing or connection |
| Loss of prime | Pump fails to draw material or loses prime repeatedly |
| Corrosion / wear | Corroded threads or internal surfaces that affect sealing |
AirCoat part 0533418 is designed for use with the AirCoat 423 air‑assisted spray system. Always confirm fitment using the correct parts diagram for your exact model and revision.
| AirCoat Model | Component |
|---|---|
| AirCoat 423 | Inlet Housing |
The inlet housing works closely with the check valve and intake components. When replacing the housing, these related parts are often inspected or replaced at the same time.
The check ball and cage (e.g., part 0533414) should be inspected for wear; replace if damaged.
The hose or fitting that connects to the inlet may have worn threads or cracks.
The mating pump housing should be checked for damage or debris that could affect seal integrity.
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