Part number 704-558 is an outlet valve seat (replaces Titan 0551620) designed to provide a precision sealing surface for the outlet check valve on compatible Airless Sprayer, Advantage, Helix, Impact, PowrLiner, and RentSpray equipment. This component works in conjunction with the valve ball or poppet to ensure one‑way fluid flow, preventing backflow and maintaining system pressure during operation. Replacing a worn, pitted, or damaged valve seat restores proper valve sealing, eliminates pressure loss, and ensures consistent spray performance.
| Part Number | 704-558 |
|---|---|
| Part Description | Outlet Valve Seat (Replaces Titan 0551620) |
| Brand | Airless Sprayer / Advantage / Helix / Impact / PowrLiner / RentSpray |
| Fits | Airless Sprayer: 440 IX, 540 IX, 640 IX; Advantage: 400, 500; Helix: LP; Impact: 410, 440, 640 I and IA, 640, X410, X440, X540 I; PowrLiner: 2800, 1800M, 2800M; RentSpray: 400, 450, 600, 650, 500, 600 Impact |
| Condition | New |
Part number 704-558 is an outlet valve seat (replaces Titan 0551620) designed to provide a precision sealing surface for the outlet check valve on compatible Airless Sprayer, Advantage, Helix, Impact, PowrLiner, and RentSpray equipment. This component works in conjunction with the valve ball or poppet to ensure one‑way fluid flow, preventing backflow and maintaining system pressure during operation. Replacing a worn, pitted, or damaged valve seat restores proper valve sealing, eliminates pressure loss, and ensures consistent spray performance.
| Check valve sealing | Provides a precision surface for the valve ball to seat against |
|---|---|
| Backflow prevention | Ensures fluid flows only in one direction, maintaining pressure |
| Pump efficiency | Critical for building and holding system pressure |
| Visible wear / pitting | Grooves, pits, or erosion on the sealing surface |
|---|---|
| Pressure loss | System cannot maintain rated pressure |
| Reduced output | Pump delivers less material per stroke |
| During valve overhaul | Always replace seat when rebuilding check valves |
Part number 704-558 (replaces Titan 0551620) is compatible with the following equipment models. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Brand / Series | Model | Component |
|---|---|---|
| Airless Sprayer | 440 IX | Outlet Valve Seat |
| 540 IX | Outlet Valve Seat | |
| 640 IX | Outlet Valve Seat | |
| Advantage | 400 | Outlet Valve Seat |
| 500 | Outlet Valve Seat | |
| Helix | LP | Outlet Valve Seat |
| Impact | 410 | Outlet Valve Seat |
| 440 | Outlet Valve Seat | |
| 640 I and IA | Outlet Valve Seat | |
| 640 | Outlet Valve Seat | |
| X410 | Outlet Valve Seat | |
| X440 | Outlet Valve Seat | |
| X540 I | Outlet Valve Seat | |
| PowrLiner | 2800 | Outlet Valve Seat |
| 1800M | Outlet Valve Seat | |
| 2800M | Outlet Valve Seat | |
| RentSpray | 400 | Outlet Valve Seat |
| 450 | Outlet Valve Seat | |
| 600 | Outlet Valve Seat | |
| 650 | Outlet Valve Seat | |
| 500 | Outlet Valve Seat | |
| 600 Impact | Outlet Valve Seat |
Valve seat wear often involves associated components. When servicing the outlet valve seat, these parts are commonly inspected or replaced at the same time.
Inspect the mating valve component for wear or damage; replace as a set for proper sealing.
Consider replacing the inlet valve seat at the same time to ensure balanced performance.
Replace seals in the valve assembly to prevent external leaks.
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