

Part number 0156646 is a Seal that prevents fluid leakage in critical pump and fluid system components on compatible SprayTech ED655 Plus and SprayTech AirCoat sprayer systems. This precision sealing component ensures reliable operation and maintains system pressure.
| Part Number | 0156646 |
|---|---|
| Part Description | Seal |
| Fits | SprayTech ED655 Plus; SprayTech AirCoat |
| Condition | New |
Part number 0156646 is a Seal specifically engineered for the SprayTech ED655 Plus airless pump and SprayTech AirCoat air-assisted airless spray systems. The ED655 Plus is a professional airless pump delivering reliable performance for residential and commercial painting applications. The AirCoat systems combine the speed of airless spraying with the fine finish quality of conventional air spray. This seal is a critical component used in various locations within the fluid system, including pump housings, valve assemblies, and manifold connections, to prevent fluid leakage and maintain system pressure.
Manufactured from materials specifically selected for compatibility with a wide range of paints, solvents, and coatings, this seal maintains its sealing properties under continuous pressure cycling, vibration, and temperature variations. Its precise dimensions ensure proper compression and sealing force when installed in the designated gland. The seal may be of various types such as an O-ring, lip seal, or gasket, depending on the specific application.
Seals are wear items that degrade over time due to chemical exposure, compression set, thermal cycling, and physical damage. A worn, hardened, or damaged seal will allow fluid to leak past, causing pressure loss, erratic operation, material waste, and potential component damage. Symptoms include external leaks at connections and difficulty maintaining pressure. Replacement with genuine 0156646 seal restores proper sealing integrity and ensures reliable operation.
| Fluid Containment | Prevents material leaks at component interfaces under pressure |
|---|---|
| Pressure Maintenance | Ensures system pressure integrity for consistent performance |
| Contamination Barrier | Blocks external debris from entering fluid systems |
| Visible Leakage | Fluid seeping from sealed joint during operation |
|---|---|
| Seal Degradation | Seal is flattened, cracked, hardened, or has pieces missing |
| Component Disassembly | Whenever a sealed component is opened for service |
| Preventive Maintenance | Replace during annual service or major system overhaul |
Part number 0156646 is specifically designed for the SprayTech ED655 Plus airless pump and the SprayTech AirCoat air-assisted airless spray systems. The ED655 Plus is a professional airless pump for residential and commercial painting applications. The AirCoat systems combine airless speed with fine finish quality. This seal is a component engineered for the sealing requirements of these professional platforms. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Compatible Models | Component |
|---|---|
| SprayTech ED655 Plus | Seal |
| SprayTech AirCoat |
This seal is typically replaced during service of the component it seals. When servicing, these related parts are often addressed at the same time.
The part that the seal contacts. Inspect for burrs, scratches, or corrosion.
Light oil or silicone grease recommended for seal installation.
Many applications have comprehensive seal kits that include this seal.