Titan part 13359 is an outlet ball seat used in the pump valve assembly of compatible airless sprayers. This precision‑machined seat provides the mating surface for the outlet valve ball, creating a leak‑tight seal during the pump’s intake stroke. Replacing a worn or grooved seat restores proper check valve function, eliminates pressure loss, and prevents backflow.
| Part Number | 13359 |
|---|---|
| Part Description | Outlet Ball Seat |
| Brand | Titan |
| Fits |
|
| Condition | New |
The SprayTech 13359 Outlet Ball Seat is a precision‑machined component that forms the sealing surface for the outlet valve ball. During the pump’s intake stroke, the outlet ball seats against this surface to prevent backflow, maintaining pressure and ensuring consistent spray performance.
Over time, the seat can develop grooves, pitting, or deformation from repeated ball impact and abrasive fluids. A worn seat will cause pressure loss, erratic spray, weeping from the gun, or complete loss of prime – even if the ball itself appears undamaged. Replacing the seat restores a fresh sealing surface and full valve integrity.
| Function | Description |
|---|---|
| Sealing surface | Provides a smooth, flat mating surface for the outlet valve ball |
| Backflow prevention | Ensures the ball seals completely during intake stroke, preventing pressure loss |
| Pressure retention | Maintains consistent output pressure and prevents gun weeping |
| Symptom | Indication |
|---|---|
| Visible groove / pitting | Seat surface shows wear ring, scoring, or erosion |
| Pressure loss | Sprayer cannot reach or maintain operating pressure |
| Gun weeping | Material seeps from tip when trigger is released |
| Erratic spray pattern | Sputtering, surging, or inconsistent fan due to poor sealing |
SprayTech part 13359 is compatible with the following models. Always verify fitment using the correct parts diagram for your exact revision.
| Brand / Model | Component |
|---|---|
| SprayTech Airless EPX2255 | Outlet Ball Seat |
| SprayTech Airless EPX2155 | Outlet Ball Seat |
| SprayTech Airless EP2400 | Outlet Ball Seat |
| SprayTech Airless EP2300 | Outlet Ball Seat |
| SprayTech Airless EP2300 SE | Outlet Ball Seat |
| SprayTech Airless EP2205 | Outlet Ball Seat |
| SprayTech Airless EP2105 | Outlet Ball Seat |
| SprayTech Airless Advantage EPX2255 | Outlet Ball Seat |
| SprayTech Airless Advantage EPX2155 | Outlet Ball Seat |
Valve sealing issues often involve multiple components. When replacing the outlet ball seat, these parts are commonly inspected or replaced at the same time.
The ball and seat wear together – always replace both for a proper seal.
If the outlet side is worn, the inlet side often shows similar damage – inspect both.
A weakened spring can cause improper ball seating and mimic seat failure.
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