

Part number 441-206 is an Adaptor O-ring that provides a leak-proof seal between fluid system components on compatible Hydra M and Hydra Pro sprayer systems. This precision elastomeric seal prevents fluid leakage and maintains system pressure for reliable equipment operation.
| Part Number | 441-206 |
|---|---|
| Part Description | Adaptor O-ring |
| Fits | 0528925N_2000_4000; Hydr M nad Hydra Pro Super; Hydra M and Hydra Pro 2000_4000 |
| Condition | New |
Part number 441-206 is a precision-engineered Adaptor O-ring specifically designed for use with 0528925N_2000_4000, Hydra M and Hydra Pro Super, and Hydra M and Hydra Pro 2000_4000 series spray systems. These professional units include the Hydra M line of electric airless sprayers and the Hydra Pro series, both engineered for high-volume commercial and industrial coating applications delivering up to 4000 PSI operating pressure. This O-ring is installed at the interface between fluid system adaptors and components, creating a leak-proof seal that prevents material leakage and maintains system pressure. The elastomeric material is specifically formulated to resist the chemical attack of solvents, water-based coatings, and abrasive pigments encountered in professional finishing environments.
The Adaptor O-ring is a critical sealing component in multiple locations throughout the fluid system, including connections between hoses, fittings, pumps, and guns. Its precise dimensions ensure proper compression when the adaptor is tightened, creating a positive seal that withstands continuous pressure cycling and vibration. The O-ring material maintains its flexibility and sealing properties over time, compensating for minor surface irregularities in the mating components. Regular inspection and timely replacement of this O-ring is essential for preventing leaks and ensuring reliable equipment performance.
O-rings are subjected to continuous compression, thermal cycling, and chemical exposure. Failure modes include hardening or cracking from age and heat, compression set causing loss of sealing force, extrusion from high pressure, and physical damage during installation. A worn or damaged O-ring will allow fluid to leak past the seal, causing pressure loss, material waste, and potential component damage. Replacement with genuine 441-206 Adaptor O-ring restores proper sealing integrity and ensures reliable operation of Hydra M and Hydra Pro spray systems.
| Fluid Containment | Seals connections between fluid system components |
|---|---|
| Pressure Maintenance | Prevents leakage under high operating pressure |
| Contamination Barrier | Blocks external debris from entering fluid path |
| Visible Leakage | Fluid seeping from adaptor connection during operation |
|---|---|
| O-ring Degradation | Seal is flattened, cracked, hardened, or has pieces missing |
| Component Disassembly | Whenever an adaptor is removed for service |
| Preventive Maintenance | Replace during annual service or major system overhaul |
Part number 441-206 is specifically designed for use with 0528925N_2000_4000, Hydra M and Hydra Pro Super, and Hydra M and Hydra Pro 2000_4000 series spray systems. These professional units include the Hydra M line of electric airless sprayers and the Hydra Pro series, both engineered for high-volume commercial and industrial coating applications delivering up to 4000 PSI operating pressure. This Adaptor O-ring is a universal component engineered for the sealing requirements across these diverse professional platforms. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Compatible Models | Component |
|---|---|
| 0528925N_2000_4000 | Adaptor O-ring |
| Hydr M nad Hydra Pro Super | |
| Hydra M and Hydra Pro 2000_4000 |
The Adaptor O-ring is typically replaced during service of the adaptor or fitting it seals. When servicing, these related parts are often addressed at the same time.
The fitting that the O-ring seals. Inspect for thread damage or wear on sealing surfaces.
Light oil or silicone grease recommended for O-ring installation to prevent rolling and ensure proper seating.
The part that the adaptor connects to. Inspect for burrs, scratches, or corrosion.